1 SimGrid (3.13) UNRELEASED; urgency=low
3 The Easter Trim Release.
5 Backwards Compatibility breaks
6 - Some command line options were renamed for consistency sake:
7 - model-check/sparse-checkpoint -> model-check/sparse_checkpoint
8 - smpi/async_small_thres -> smpi/async_small_thresh
9 - smpi/send_is_detached_thres -> smpi/send_is_detached_thresh
11 - Removed Lua simulation bindings (switch to C or Java for that).
12 Lua can still be used to describe platforms
13 - Removed Java kernel plug-ins.
14 Will be reintroduced after the ongoing major internals reorg.
16 - the SD_application_reinit function was removed. It was a noop for a while.
17 - The ACCESS_MODE of SD_workstation has been removed. This feature was not really usable and should soon be
18 replaced by a more flexible mechanism.
19 - The following functions thus do not exist anymore
20 - SD_workstation_get_access_mode
21 - SD_workstation_set_access_mode
22 - SD_workstation_get_current_task
23 - Basic estimation functions have been removed but can easily be replaced
24 - SD_route_get_communication_time => SG_route_get_latency() + amount / SD_route_get_bandwidth()
25 - SD_workstation_get_computation_time => amount / sg_host_speed()
27 - VM.setBound(int load) is now VM.setBound(double bound) to meet the MSG semantics. Use VM.getSpeed()*load/100 for the legacy behavior.
29 - option enable_tracing was removed. It was not doing anything since a while.
30 - In the ModelChecker:
31 - the model-checker now ptraces the model-checked process which means
32 you cannot use a debugger on the latter anymore (we might make this
33 optional in the feature);
34 - removed soft-dirty page tracking;
35 - remove model-checked side snapshot management,
36 MC_snapshot() and MC_compare_snapshot();
37 - keep the MC_cut() function as a stub (it was not really working
38 in the previous release).
41 * Switch to platform v4 format.
42 - Rename from 'power' to 'speed' the attributes describing the amount of
43 flops that a <host>, <peer>, <cluster> or <cabinet> can deliver per second.
44 - In <trace_connect>, attribute kind="POWER" is now kind="SPEED".
45 - In <host> and <link>, attributes availability and state are gone.
46 It was redundent with state and availability traces, and with peak values.
47 - In <cluster>, attributes availability_file and state_file are gone.
48 It was too complex and unused.
49 - Kill <gpu>. Was not doing anything.
50 - The DOCTYPE points to the right URL:
51 http://simgrid.gforge.inria.fr/simgrid/simgrid.dtd
52 (the file at this address now documents the changelog since its v1)
53 - A warning is emitted for unit-less values (they are still accepted).
54 - speed. Default: 'f' or 'flops'. Also defined:
55 'Yf', 'Zf', 'Ef', 'Pf', 'Tf', 'Gf', 'Mf', 'kf'
56 'yottaflops', 'zettaflops', 'exaflops', 'petaflops', 'teraflops', 'gigaflops', 'megaflops', 'kiloflops'
57 - bandwidth. Default: 'Bps' bytes per second (or 'bps' for bits but 1 Bps = 8 bps)
58 Also defined in bytes: 'TiBps', 'GiBps', 'MiBps', 'KiBps', 'TBps', 'GBps', 'MBps', 'kBps', 'Bps'
59 And the same in bits: 'Tibps', 'Gibps', 'Mibps', 'Kibps', 'Tbps', 'Gbps', 'Mbps', 'kbps', 'bps'
60 - latency. Default: 's' second. Also defined:
61 'w' week, 'd' day, 'h' hour, 'm' minute, 'ms' millisecond, 'us' microsecond, 'ns' nanosecond, 'ps' picosecond
63 * bin/simgrid_update_xml can upgrade your files automatically (won't convert unit-less values)
64 tools/sg_xml_unit_converter.py may help (but it's just a warning and will probably ever be).
67 * s4u::Host is now the preferred public interface to the Host features.
68 sg_host_* functions are C bindings to the exact same behavior
69 MSG_host_* and SD_workstation_* are #define to the sg_host_* ones
72 * Kill all deprecated functions (the ones you had when declaring MSG_DEPRECATED).
73 They were deprecated since a few years, and probably did not even compile anymore.
76 * The API has been profoundly modified to directly use the core objects instead of redefining its own.
77 SD_Workstation_t and SD_link_t are now sg_host_t and sg_link_t respectively.
78 Some functions have also been renamed for consistency. Backward compatibility is maintained, but users are
79 encouraged to update their codes. A list of the modified functions can be found at the end of
80 include/simgrid/simdag.h
83 * simgrid::simix::kernel() is the closure callback. It ensures that
84 the lambda or closure passed as a parameter will run in kernel mode.
85 Every callbacks should be rewritten to that interface at some point.
88 * Reorganizing and cleaning the internals all around the place.
91 * Remove old default barrier/bcast buggy algorithms (see #18407)
92 * Various bug fixes to handle more codes
93 * Remove the need for the --foreground option of smpirun (it is still
94 accepted for backward compatibility).
97 * Kill the setset data container: MC don't use it anymore.
98 * Kill the queue data container: it made more sense with GRAS.
99 * Kill the xbt_peer_t data type: it's useless without GRAS.
100 * Kill rm_cb feature of config sets: it was never useful.
101 * Kill graphxml parsing feature. It was not used.
102 * Kill the deprecated code protected by XBT_USE_DEPRECATED
104 - xbt_dynar_sort_strings(), when the content is char*
105 - xbt_str_parse_int / xbt_str_parse_double, wrapping strtol/strtod
106 They throw exceptions on invalid input;
107 * C++ support for declaring CLI flags (simgrid::config::Flag);
108 * class for abstracting different signal backends (simgrid::xbt::signal).
111 * refactoring and cleanup of the code;
112 * ongoing process to cleanly separate the model-checking algorithms
113 from the code model-checking support.
115 -- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
117 SimGrid (3.12) stable; urgency=low
119 The Facelift Release.
122 * Require g++ v4.7 at least to not speak prehistorical C++.
123 * Require Boost 1.48 (for signal2 component).
124 * Java must be version 7 at least when activated.
125 * Builds on Windows again (including Java bindings).
126 * Tracing is now always enabled (no way to turn it out)
127 * Remove GTNetS. It was not working anyway.
128 * Various cleanups in the cmake scripts.
129 * Move headers around to sort them out on installed systems:
130 - instr/instr.h -> simgrid/instr.h
131 - instr/jedule/* -> simgrid/jedule
132 - simdag/datatypes.h was removed
133 - simdag/simdag.h -> simgrid/simdag.h
134 - msg/datatypes.h was removed
135 - msg/msg.h -> simgrid/msg.h
138 * Interface improvement:
139 - Rename MSG_host_is_avail(h) to MSG_host_is_on(h)
140 - Sanitize the interface in MSG_task_ module:
141 - Merge two functions that were close enough but misleading:
142 set_compute_duration(t) -> set_flops_amount(t)
143 get_remaining_computation(t) -> get_flops_amount(t)
144 - set_data_size(t) -> set_bytes_amount(t)
145 get_data_size(t) -> get_bytes_amount(t)
146 - Massive cleanups in the functions related to the energy
147 - MSG_host_get_pstate_number() -> MSG_host_get_nb_pstates()
148 - New: MSG_host_get_pstate()
150 - msg/energy/onoff: switching hosts on and off
152 * Interface improvement:
153 - Rename Host.isAvail() to Host.isOn()
154 - Rename Process.currentProcess() to Process.getCurrentProcess()
155 - Rename Task.setDataSize() to Task.setBytesAmount()
156 - Merge Task.getRemainingDuration() and Task.getComputeDuration() into Task.getFlopsAmount()
158 - #18874: Actually allows the GC to reclaim tasks
162 - SIMIX_process_throw: raises an exception in a remote process
163 * Refactoring: Separate sub-modules
164 - libsmx: the public interface, as libc in a real system
165 - popping: the strange dance that converts a user request into a kernel handling
166 - smx_context_*: the virtualization mechanisms that embed the user code
167 - smx_*: the handling of each simcalls
169 - simcall_host_set_power_peak_at -> simcall_host_set_pstate
170 * Rename smx_action_t into smx_synchro_t, making explicit that these
171 things are used to synchronize processes with their environment.
172 For example, a communication is a sort of synchronization involving
173 the communicating processes (that may block until the exchange) and
174 the platform. The same can be said from computations, etc.
176 - #18888: segfault when a process ends before its kill_time
180 - Onesided early support for : MPI_Win_(create, free, fence, get_name, set_name, get_group), MPI_Get, MPI_Put, MPI_Accumulate, MPI_Alloc_mem, MPI_Free_mem.
181 - MPI_Keyval*, MPI_Attr* functions, as well as MPI_Comm_attr*, MPI_Type_attr* variants (C only, no Fortran support yet)
182 - MPI_Type_set_name, MPI_Type_get_name
183 - MPI_*_c2f and MPI_*_f2c functions
184 - MPI_Info_* functions (beware, get_nthkey may not follow the insertion order)
185 - MPI_Pack, MPI_Unpack and MPI_Pack_size functions
186 - Activate a lot of new tests from the mpich 3 testsuite
188 - Constant times can be injected inside MPI_Wtime and MPI_Test through options smpi/wtime and smpi/test
189 - InfiniBand network model added : Based on the works of Jerome Vienne
190 http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
191 - When smpi/display_timing is set, also display global simulation time and application times
192 - Have smpirun, smpicc and friends display the simgrid git hash version on --git-version
193 * Collective communications
194 - SMP-aware algorithms are now dynamically handled. An internal communicator is created for each node, and an external one to handle communications between "leaders" of each node
195 - MVAPICH2 (1.9) collective algorithms selector : normal and SMP algorithms are handled, and selection logic is based on the one used on TACC's Stampede cluster (https://www.tacc.utexas.edu/stampede/).
196 - Support for Rabenseifner Reduce/Allreduce algorithms (https://fs.hlrs.de/projects/par/mpi//myreduce.html)
198 - Replay now uses algorithms from wanted collective selector
199 - Replay can be used with SMP-aware algorithms
200 - Memory occupation of replay should now be contained (temporary buffers allocated in collective algorithms should be shared between processes)
201 - Replay can now replay several traces at the same time (check examples/smpi/replay_multiple example), to simulate interactions between several applications on a given platform. User can specify the start time of each instance. This should also allow replay + actual applications to run.
203 - [#17799] : have mpi_group_range_incl and mpi_group_range_excl better test some corner cases
204 - Correctly use loopback on fat-tree clusters
205 - Asynchronous small messages shouldn't trigger deadlocks anymore
206 * Energy/DVFS cleanup and improvement
207 - smpi_set_host_power_peak_at() -> smpi_set_host_pstate()
208 - new: smpi_get_host_pstate()
211 - "Full" network optimization flag was broken since Surf++
212 - Better handling of precision flags in maxmin
213 - Fix bug causing sometimes "Impossible" errors
214 - Properly pass cluster properties to included hosts
215 * Improvement of the Energy plugin.
216 - Always update the consumption before returning that value
217 - New property: watt_off to denote the dissipation when the host is off
218 - New functions getWattMinAt and getWattMaxAt to retrieve the
219 dissipation of pstates that we are not currently at.
220 * Java: class NetworkLink renamed to Link
221 * New function: simcall_process_get_kill_time()
222 * Massive rename s/workstation/host/
223 - That's intrusive, but that's good for the project consistency. Sorry.
224 - Change config option "workstation/model" into "host/model"
227 - Add a xbt_heap_update function, to avoid costly xbt_heap_remove+xbt_heap_insert use
228 - Add a xbt wrapper for simcall_mutex_trylock (asked in [#17878])
229 - Add two new log appenders : rollfile and splitfile. Patch by Fabien Chaix.
230 - xbt_dirname and xbt_basename for non-POSIX systems
232 * The model checker now runs as a separate process.
233 * The model checker runs must now be launched with the new simgrid-mc program.
234 * Record/Replay: the MC can display a textual representation of a path in the
235 execution graph. It can then be replayed outside of the model checker.
237 -- Mon Oct 12 06:02:41 CEST 2015 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
239 SimGrid (3.11) stable; urgency=low
244 * Normalizing pointers addresses tool for better diff between logs
247 * Add cloud examples using new VMs
248 - examples/msg/cloud/two_tasks_vm.tesh
249 - examples/msg/cloud/simple_vm.tesh
250 - examples/java/cloud/cloud.tesh
251 - examples/java/cloud/migration/migration.tesh
252 * Add java surf examples:
253 - examples/java/surfPlugin/surf_plugin.tesh
254 - examples/java/reservationSurfPlugin/reservation_surf_plugin.tes
255 - examples/java/surfCpuModel/surf_cpu_model.tesh
256 * Add SMPI+MSG example:
257 - examples/smpi/smpi_msg_masterslave/
262 - msg task destroy cancel test
263 - msg_host on/off test
264 * Move all tests in testsuite to teshsuite (adding tesh files)
265 * Restructure teshsuites
266 - one folder for each kind of test
267 * Restructure AddTests.cmake
269 - structure the order of tests (with sections)
272 * Add virtual machine
273 - creation of a VM on a PM
274 - migration of a VM from a PM to another PM
276 - MSG_process_join(msg_process_t process, double timeout)
277 - msg_bar_t MSG_barrier_init(unsigned int count)
278 - int MSG_barrier_wait(msg_bar_t barrier)
279 - void MSG_barrier_destroy(msg_bar_t barrier)
280 - msg_as_t MSG_environment_as_get_by_name(const char * name)
281 * New option "msg/debug_multiple_use" to help debugging when a task is used
284 - Improvements and finalization of MSG_storage, MSG_file APIs and their
286 - Increase code coverage in test suites
290 * Protect context stacks against stack overflow. The number of protected memory
291 pages allocated on the top of each stack (1 by default) can be configured
292 with the new command line option --cfg=contexts/guard_size:<value>.
293 * Simcalls are now generated by a python script that
294 - generates files included by SimGrid
295 - checks that all the functions exist, and proposes prototypes
297 - remove sem_destroy, file_set_data, comm_destroy, vm_set_state,
298 host_set_data, host_get_data
300 - simcall_process_join(smx_process_t process, double timeout)
301 * Fix bug where sleeping processing could not be suspended.
304 * Translate surf models from C to C++
305 - Generic classes for all models: Model, Resource, Action
306 - A generic interface for each kind of model (CPU, Network, Storage
307 Workstation, WorkstationVM)
309 * Translate surf routings from C to C++
310 * Add callbacks using sigc++ or boost::signals2
311 - Add callback functions for resource creation/destruction
312 - Add callback functions for action state change
313 - Handle Energy as a plugin
314 * Replace swag by boost::intrusive
315 * Add new routing models for clusters. For documentation, see
316 http://simgrid.gforge.inria.fr/simgrid/latest/doc/platform.html#pf_cluster
317 - tori, with topology="TORUS" and topo_parameters="ndim1,ndim2,...,ndimn"
318 parameters for cluster tag
319 - Fat trees, with topology="FAT_TREE" and
320 topo_parameters="h;m1,...,mh;w1,...,wh;p1,...,ph" parameters for cluster tag
321 - see examples/platforms/torus_cluster.xml and
322 examples/platforms/fat_tree_cluster.xml
326 * Hostfiles support host:nb_processes construct to deploy several processes on
328 * Collective communication algorithms should not crash if used with
329 improper number of nodes and report the error.
330 * SMPI now partially supports MPI_Topologies : MPI_Cart_create, MPI_Cart_shift,
331 MPI_Cart_rank, MPI_Cart_get, MPI_Cart_coords, MPI_Cartdim_get,
332 MPI_Dims_create, MPI_Cart_sub are supported.
333 * New interface to use SMPI programmatically (still depends on MSG for
334 some parts, see examples/smpi/smpi_msg_masterslave) :
335 - SMPI_app_instance_register(const char *name, xbt_main_func_t code,
339 * Global variables privatization in MPI executables is now performed at runtime
340 with the option smpi/privatize_global_variables (default:no).
341 Limitations : Linux/BSD only, with mmap enabled. Global variables inside
342 dynamic libraries loaded by the application are not privatized (static
343 linking with these libraries is advised in this case)
346 * Options defined in XML work correctly now.
349 * New cmake option, enable_lib_in_jar, to control whether native libraries are
350 copied into simgrid.jar or not (ON by default). Use this option if you want
351 to reduce the size of the installed simgrid.jar, *and* the native libraries
352 are kept installed elsewhere.
353 * Surf binding with SWIG (code generated in maintainer mode only):
354 - plugin to handle callbacks
355 - CPU model only for the moment
358 * Supernovae build mode is definitively removed. It was used to improve
359 inlining and inter-module optimizations. It is nowadays superseded by
360 link-time optimizations commonly available in compilers.
361 * Update ns-3 find lib. Bindings for ns-3 should work again now.
362 * Add boost dependency for surf++
363 * Add new macro for tests
364 - ADD_TESH(name <tesh_args>)
365 - ADD_TESH_FACTORIES(name "thread;ucontext;raw" <tesh_args>)
369 - xbt_bar_t XBT_barrier_init(unsigned int count)
370 - int XBT_barrier_wait(xbt_bar_t barrier)
371 - void XBT_barrier_destroy(xbt_bar_t barrier)
372 * Make the xbt_os_time module public
374 -- Sat May 31 22:39:38 CEST 2014 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
376 SimGrid (3.10) stable; urgency=low
378 The Clean Diaper Release, a.k.a. SimGrid is leak-free.
381 * Reintegrate Java to the main archive as desynchronizing these
382 package is not acceptable anymore (Java is now considered stable)
383 * Add explicit synchronization facilities through semaphores
384 * Bug fix: Task.setDataSize() only changed the C world, not the value
385 cached in the Java world
388 * Dramatically change the way files are handled. API and internals changed, but
389 this part of MSG was not considered as production grade either.
390 * Add explicit synchronization facilities through semaphores
391 * Add a new function MSG_host_get_process_list()
392 * Preliminary DVFS support (see examples/msg/energy/ for details)
395 * SMPI is now included directly in the libsimgrid as the windows
396 linker doesn't force us on splitting it anymore.
397 * Improvements of the SMPI replay tool:
398 - Most of the collective communications are now rooted in the same process as
399 in the original application.
400 - Traces now rely on the same MPI data type as the application (MPI_BYTE was
401 used until now). Multiple data types can now be used in a trace.
402 - The replay tool now supports traces produce either by TAU or a modified
404 - Bug Fix: the compute part of the reduce action is now taken into account.
405 - Gatherv collective is now supported
406 - SimGrid (SMPI for now) can generate replay traces as well. Option -trace-ti
407 of smpirun outputs time independent traces for the current run. One file
408 is created per process. If too many processes are simulated, this behavior
409 can be changed to one file for all processes by using the
410 tracing/smpi/format/ti_one_file flag
411 * smpirun generates the host file if needed (with given host count and platform)
412 * Integration of more than 100 STAR-MPI, MPICH, OpenMPI collective algorithms
413 - allows to select one in particular with --cfg=smpi/coll_name:algorithm
414 - allows to use the decision logic of OpenMPI(1.7) or MPICH(3.0.4) by setting
415 --cfg=smpi/coll_selector:(mpich/ompi)
416 * Support for new functions : MPI_Issend, MPI_Ssend, Commutative operations in
418 * Add a --cfg:tracing/smpi/internals option, to trace internal communications
419 happening inside a collective SMPI call.
420 * Fix the behavior of complex data types handling.
421 * Make MPI_Wtime another synchronization point to take computations into
423 * Replace MPICH-1 test suite by the one from MPICH 3.0.4. Can be built using
424 enable_smpi_MPICH3_testsuite flag in cmake. Run with ctest.
425 * Add all missing Fortran bindings, SMPI should work with Fortran 90
426 (no privatization of global variables yet)
427 * Preliminary DVFS support (see examples/smpi/energy/ for details)
430 * Verification of liveness properties is now available for SMPI applications
431 (in addition to MSG applications)
432 * Bugged examples using SMPI in examples/smpi/mc/
433 * Add --cfg=model-check/visited option. Allows the verification of infinite
434 programs. Detection of loops in the execution thanks to the system state
435 comparison and reduction of the state space to explore. Can be combined with
436 DPOR for safety properties.
439 * Allow to change SimGrid configuration (see --help) within the code
440 thanks to SD_config() as it can be done in MSG.
441 * Add a new function SD_task_set_amount() upon user request.
444 * Handle units for values (10ms, 10kiloflops, 10Bps, 1GB, ...)
445 * Remove rule based routing (no more PCRE dependency)
446 * Add a limiter_link option to cluster tag, to specify a maximum reachable
447 bandwidth in fullduplex mode when it is less than twice the nominal bandwidth.
448 * Add a loopback_bw and loopback_lat options to cluster tag.
449 * Fix the peer tag that could not be mixed with other AS within a Vivaldi
450 routing. Now peers are encapsulated in an AS and have their own private
451 router but this is transparent.
454 * Our own implementation of getline is renamed xbt_getline, and gets
455 used even if the OS provide a getline(). This should reduce the
456 configuration complexity by using the same code on all platforms.
457 * New type: xbt_cfg_elm_boolean.
458 * Allow to use yes/no for boolean configuration options in the command line.
459 * Allow to disable SimGrid cleanups at exit from command line option.
460 There are situations where one may want a simulation to end with an exit.
461 Unfortunately, calling exit may cause SimGrid to segfault, which is quite
462 annoying when scripting around the simulator. Adding a
463 --cfg=clean_atexit:no allows to circumvent this issue.
466 * Lots of memory leaks were corrected in this release.
467 There is no known memory leaks anymore, in all of our 600+ tests.
468 * New command line option --version, to get SimGrid version information.
469 Packagers may want to add extra words to SIMGRID_VERSION_EXTRA defined in
471 * Supernovae builds are deprecated, and expected to be removed in the next
474 -- Sun Nov 17 00:26:44 CET 2013 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
476 SimGrid (3.9) stable; urgency=low
478 The Grasgory release: GRAS is really dead now.
480 * Complete overhaul of the internal host structures scheme.
483 * If you use GRAS, you should stay at SimGrid 3.5 (at most) since it
484 was considered as experimental and badly maintained since then.
485 * Keeping it was thus a trap to our potential users, that could take
486 it instead of MSG or SMPI by mistake despite is pity state.
487 * GRAS seems to have very few users (if any), and no one volunteered
488 to maintain it further. It also induces a lot of XBT code (for
489 portability sake), that must be maintained too.
490 * For all these reasons, we killed GRAS. If someone wants to revive it
491 in the future, don't cry, our git history still remembers of GRAS.
494 * Major overhaul. Merge our documentation again as time proved that
495 splitting it was really not helping our users.
496 * Further improve the developer documentation to help newcomers
497 hacking on SimGrid itself. The user documentation (and in
498 particular, the beginner documentation) is still in a sorry state.
501 * Now works on Windows too!
502 * Much more extensive test suite, from MPICH
505 * Add a new loader (SD_PTG_dotload) that creates a parallel task graph
506 (i.e., a DAG whose nodes are parallel tasks) from a dot file. Creates a
507 dynar of SD_TASK_COMP_PAR_AMDAHL and SD_TASK_COMM_MXN_1D_BLOCK tasks.
508 * Bug fix: let task be scheduled when the last dependency to be solved is
509 a control dependency.
510 * Remove SD_load_environment_script function.
511 Use the C sg_platf function if you want to declare a platform
515 * New function: MSG_process_get_number()
516 * Old function documented: MSG_config()
517 * Remove MSG_load_platform_script function
518 Use the C sg_platf function if you want to declare a platform
522 * Change the default value of the TCP_gamma constant (maximal size of TCP
523 congestion window) to a more realistic 4MiB value. If you notice changes in
524 your simulation results, you can fall back to the previous 20k tiny window
525 by adding --cfg=network/TCP_gamma:20000 on command line.
526 * (Hopefully) fix a bug wrt periodic availability and state traces
527 * Bug fix: use default values at start when first event in availability/state
528 trace is not at time 0.
531 * remove the "new_" part of function name sg_platf_new_trace_connect
532 (resulting in sg_platf_trace_connect), since it does not create
536 * Kill synchronized dynars, and xbt_dynar_dopar(). We cannot think of a
537 use case where it's really mandatory, and maintaining it was a pain in
539 * New: xbt_fifo_search(), search an item with a user-provided
540 comparison function instead of dumb pointer comparison.
543 * Fix the lua deployment:
544 Use `simgrid.init_application()` before deployment instead of
545 `simgrid.msg_register_application()` after.
548 * Transfer the tracing files into the corresponding modules.
550 -- Tue Feb 5 11:31:43 CET 2013 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
552 SimGrid (3.8.1) stable; urgency=low
554 The "we are told that some people want to also *install* the simgrid
557 * Add missing file "tesh.1" to the archive.
559 -- Sat Oct 27 16:12:11 CEST 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
561 SimGrid (3.8) stable; urgency=low
563 The Psssshiiiit release: SimGrid jumps into the Cloud.
566 * Add an experimental interface to manipulate VMs. They are mainly
567 process groups with very few intrinsic semantic, but they should
568 allow you to build the semantic you want easily.
569 * New function: MSG_host_set_property_value()
570 * New function: MSG_process_on_exit(). To clean memory in all cases.
571 * Bug fixes that made the host (and link) failures unusable.
572 * Add a way to auto-restart process when the host in which they are
573 executing comes back (ON_FAILURE="RESTART" on deployment file,
574 MSG_process_auto_restart_set).
575 * Use the "msg_" prefix for all datatypes (instead of m_, msg_ and MSG_),
576 please stop using the old ones, they are DEPRECATED.
578 * Deprecate functions MSG_global_init() / MSG_global_init_args()
579 Please use MSG_init() instead. (reducing the amount of entry
580 points in the library helps us).
581 * Make it impossible to link against the wrong version of the lib
582 * Deprecate MSG_clean(). No need to call it anymore.
583 * Function MSG_get_host_number() is not deprecated anymore.
586 * Split the doc into a user guide and a reference guide.
587 * Start a developper guide to help people hacking on SimGrid.
590 * Enable tracing by default. This modules rocks you should use it.
591 * Remove option custom_flags. Now use environment variables CFLAGS
593 * Use default cmake things to detect lua instead of home grown ones.
594 * New option "enable_mallocators" to disable mallocators, for debugging
595 purpose ("on" by default).
598 * Bug fixes around the resource failures: don't let the processes
599 survive the host they are running onto.
600 * Add an interface to auto-restart processes when the host in which they are
601 executing comes back.
602 * Ensures that SIMIX_clean is called automatically. It's not part of
603 the public interface anymore (bindings should be updated).
606 * Bug fix for when SD_Simulate is called with a positive value: be careful
607 when comparing doubles. Sometimes they are different for non significant
609 * New types of typed tasks. SD_TASK_COMP_PAR_AMDAHL represents a
610 parallel task whose initial work is distributed among host according
611 to the Amdahl's law. Such tasks are created with a parameter alpha
612 that corresponds to the non-parallelizable part of the computation.
613 SD_TASK_COMM_PAR_MXN_1D_BLOCK represents a complex data redistribution
614 between two sets of workstations assuming a 1D block distribution (each
615 workstation owns a similar share of data) on both sides.
617 These tasks can be scheduled with SD_task_schedulel or SD_task_schedulev.
618 Data redistribution will be automatically scheduled once parent and child
619 are both scheduled. The filling of computation_amount and
620 communication_amount structures is now done seamlessly thanks to the chosen
622 * New function SD_workstation_dump to display various information
623 * New function SD_task_set_rate to throttle the bandwidth allowed to be used
624 by a SD_TASK_COMM_E2E typed task. This rate depends on both the nominal
625 bandwidth on the route onto which the task is scheduled and the amount of
627 To divide the nominal bandwidth by 2, the rate then has to be :
628 rate = bandwidth/(2*amount)
629 * Compute tasks that have failed can now be rescheduled and executed again
630 (from their beginning)
631 * Increasing source code coverage (src/simdag is now covered at 95.8%
635 * Re-implement time-independent trace replay using SMPI (at the
636 smpi_smp_* level) instead of MSG. This should replace
637 examples/msg/actions/actions.c
638 * Implement support of MPI Datatypes (vectors, hvectors, indexed,
639 hindexed and structs)
640 * Implement the exchange of non-contiguous data.
641 [Khalid Hasanov & Jean-Noel Quintin] Thanks for the patch, guys.
642 * Correct behavior of smpi/sender_gap and set its default value to 0
643 * Add option to asynchronously send small messages to allow better
644 simulation of pt2pt communications. --cfg=smpi/async_small_threshold:value
645 specifies the size in bytes under which messages will be asynchronously sent.
646 * Add support of MPI_Iprobe, MPI_Probe, MPI_Testall, MPI_Wtick functions
647 * SMPI now handles more MPI specific values in input. Closes [#14389] and [#14388]
650 * New C interface to define a platform: XML is now optional.
651 For more info, please check include/simgrid/platf.h.
652 * New interface to define random platforms from the C:
653 For more info, please check include/simgrid/platf_generator.h and
654 examples/msg/masterslave/masterslave_platfgen.c
655 * Export a sg_cmdline dynar containing all the arguments we got from
659 * Two new tracing options for adding comments to trace file so you
660 can track your experiments (see --help-tracing for details).
661 * New option to generate a impoverished trace file (--cfg=tracing/basic:1)
662 * Adding the SimGrid version that generated the trace file as a comment.
663 * Instrumenting other MSG functions (MSG_task_isend_with_matching and MSG_task_dsend)
664 * Fix to avoid key clashes on Paje links
665 * Other minor fixes related to the Paje specification
668 * Functions xbt_dict_hash() and xbt_dict_hash_ext() are made public,
669 and renamed to xbt_str_hash() and xbt_str_hash_ext().
670 * New function: xbt_os_timer_resume() to restart a timer w/o resetting it.
671 * Greatly improve the robustness of mmalloc to user errors (such as
672 using an area after freeing it, or freeing it twice)
674 -- Thu Oct 25 17:30:06 CEST 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
676 SimGrid-java (3.8.1) stable; urgency=low
678 * New module: org.simgrid.trace.Trace (SimGrid trace bindings)
679 Warning: all methods are visible, but only some of them are
680 implemented so far. Check the source (src/jtrace.c)
681 for further information.
682 * New module: org.simgrid.msg.File (SimGrid File management functions)
683 * New Module: org.simgrid.msg.VM (SimGrid interface to mimick IAAS clouds)
684 * Change the meaning of Process.restart: now restart the process from
685 the begining, like MSG_process_restart in C.
686 * Add Process.setAutoRestart: handling of process restart when failed
688 * Add Process.getProperty, Host.getProperty, Host.getProperty: allows
689 you to retrieve the properties of the processes/hosts
690 * Deprecate Msg.clean(): you can just forget about it now.
691 * New function Process.getCount(), that only works when compiling
692 with the not yet released version 3.9 of the C library.
694 * New context factory based on Coroutines. It mandates a modified JVM
695 but then, the simulations run about five times faster, and there is
696 no limit to the amount of processes (beside of the available memory).
698 -- 2012-12-04 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
700 SimGrid (3.7.1) stable; urgency=low
703 * Restore the prototype of MSG_process_create_with_environment() to
704 the pre-3.7 situation by removing the kill_time argument.
705 * Add a MSG_process_set_kill_time() function instead.
708 * Fix weird behaviors when dealing with parallel tasks.
711 * Simgrid is now built as a dll.
712 * Simgrid-java now works on Windows.
713 * Simgrid-Java is now included into Windows package.
716 * First pre-build package for MacOSX.
719 * Fix compilation when using MSG_USE_DEPRECATED.
720 * Fix some compilation issues on Macs and Windows.
721 * Reduce the number of failing tests on exotic systems, like Debian/Hurd.
722 * Environment variables CFLAGS and LDFLAGS are now honored by cmake.
724 We discovered that the Lua console is broken, but we are missing the
725 manpower to fix it right now. The problem existed in 3.7 too, so we
726 are not blocking the release for that. Sorry if you depended on this
727 feature, any help would be really welcome.
729 -- Thu Jun 7 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
732 SimGrid-java (3.7.1) stable; urgency=low
734 The "Java aint got to be bloated and slow" release
737 * Various internal cleanups and performance improvement
738 Simulations are expected to run up to twice faster or so
739 * Make Process.kill(process) an instance method, not a static one
740 * User processes are not java.lang.Thread subclasses.
741 This breaks the compatibility (sorry), but previous API was
742 brain-dead, making it impossible to have non-trivial
743 initializations in the process constructor.
744 * Require a full constructor per Process sub-class.
745 Kinda breaks the compatibility (sorry), but this allows a much more
746 efficient way to launch the processes at simulation startup.
747 * Do not embeed our version of semaphores, java 1.5 can be considered
748 as sufficiently prevalent for us to not dupplicate its features.
752 * Add examples for almost every part of the API
753 We spotted and fixed a lot of bugs in the process
755 * New module: asynchronous communication API
756 * New function: Process.sleep()
757 It takes milliseconds as argument, just as java.lang.Thread.sleep()
758 * New module: org.simgrid.msg.Mutex (SimGrid mutexes)
759 * New module: org.simgrid.msg.RngStream (RngStreams random generators)
761 -- 2012-06-12 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
763 SimGrid (3.7) stable; urgency=low
765 The "spring cleanups (before the next Big Project kicks in)" release.
768 * We can specify the SMPI latency/bandwidth factor with command line
769 add --cfg=smpi/bw_factor:"threshold0:value0;...;thresholdN:valueN"
770 or add --cfg=smpi/lat_factor:"threshold0:value0;...;thresholdN:valueN"
771 You can also use the "config tag" from platform file by adding this line
772 <prop id="smpi/bw_factor" value="threshold0:value0;...;thresholdN:valueN"></prop>
773 (see "example/platforms/tag_config.xml" to use "config tag").
774 Note that the command line supersedes the platform file configuration.
775 * Change the correction factors used in LMM model, according to
776 the latest experiments described in INRIA RR-7821.
777 Accuracy should be improved this way.
778 * Use the partial invalidation optimization by default for the
779 network too. Should produce the exact same results, only faster.
780 * Major cleanup in surf to merge models and split some optimization
781 mechanisms from the core of the models. As a result you can now
782 specify which model to use (e.g., --cfg=network/model:LV08
783 --cfg=cpu/model:Cas01) and which optimization mode to use
784 (e.g., --cfg=network/optim:lazy --cfg=cpu/optim:TI).
785 Incompatible combinations should err at initialization. See
786 --help-models for the list of all models and optimization modes.
787 * The CLM03 workstation model was dropped for simplicity because it
788 used the deprecated CM02 network model. Use default instead.
789 * Rename the TCP_gamma configuration option to network/TCP_gamma
790 * Rename the coordinates configuration option to
791 network/coordinates, and document it
792 * Use now crosstraffic keyword instead of the terribly misleading
793 fullduplex keyword. It is activated by default now in the current
794 default model, use --cfg=network/crosstraffic:0 to turn it off.
795 * Ongoing refactoring the model parsing to make XML files optional
796 See include/simgrid/platf.h for details (still to be completed)
799 * Major overhaul of the documentation. Almost instructive now :/
800 * Deprecate the use of m_channel_t mechanism like MSG_task_{get,put}
801 functions and friends. This interface was considered as
802 deprecated since over 2 years, it's time to inform our users that it is.
803 Switch to MSG_task_{send,recv} instead, or compile SimGrid command line
804 'cmake -Dcustom_flags="-DMSG_USE_DEPRECATED" .' if you really need to
805 use these (crappy) functions in your code.
806 These functions will be removed soon. Stop using them now.
807 * Deprecate MSG_get_host_{table,number}
808 Implement MSG_hosts_as_dynar() instead.
809 * Implement MSG_processes_as_dynar() (Closes gforge #13642)
810 * Remove the public field msg_host_t->name. Use MSG_host_get_name()
813 * Stabilize the parallel execution mode of user contexts
814 * Introduce configuration variables to control parallel execution:
815 - contexts/synchro: Synchronization mode to use when running
816 contexts in parallel (either futex, posix or busy_wait)
817 - contexts/parallel_threshold: Minimal number of user contexts
818 that must be part of a scheduling round to switch to parallel
819 execution mode (raw contexts only)
820 * Fix bugs that prevented to use suspend/resume along with
821 synchronization structures.
822 * Fix bugs in process termination that lead to invalid memory access
823 in very specific conditions.
826 * Introduce a parallel mode for the models (controlled by surf/nthreads
827 configuration item). In our tests, running the models in parallel
828 never lead to any speedups because they are so fast that the gain
829 of computing each model in parallel does not amortizes the
830 synchronization costs, even when ultra fast futexes are used.
831 This is released anyway because YMMV.
834 * Performance boost by using a swag internally to compute the set of
835 tasks that are finished and should constitute the return value of
839 * Enable it by default now that it is considered rather stable.
842 * Documentation of the tracing functions.
843 * Performance gains when tracing categorized/uncategorized resource
844 utilization by avoiding calls to get route when updating resource
845 variables. LMM constraints are being used instead.
846 * API changed to set task categories. Use MSG_task_set_category instead
847 of TRACE_msg_set_task_category, and SD_task_set_category instead
848 of TRACE_sd_set_task_category. They only work if ENABLE_TRACING is ON.
849 * Bugfix for graphicator, routes not correctly obtained, memory leaks
850 * Examples for link user variables added (see at examples/msg/tracing/)
851 * Deprecated function TRACE_msg_set_process_category completely removed
852 * Trace header updated according to the latest Paje file format
853 * Tracing network lazy updates, no longer obligate users to use full updates
854 * --cfg=tracing/platform:1 also registers power/bandwidth variables
855 * Experimental: let user code declare/set/push/pop application states for hosts
856 * API changed to allow the manual creation of graph configuration files
857 for Triva. See TRACE_get_node_types() and TRACE_get_edge_types().
860 * Improve the API of Lua MSG bindings, using the Lua spirit.
861 * Each simulated process now lives in its own Lua world (globals are
862 automatically duplicated). It helps writing simulators. Will allow
863 to run Splay programs within SimGrid in the future.
864 * Add a Chord example in Lua, equivalent to the MSG one.
867 * Start the implementation of a solution to express temporal
868 properties, not only local assertions. This is still an
869 experimental work in progress, stay clear from it to be safe.
873 - Add new runtime parameters --help-logs and --help-log-categories
874 to display informations about supported logging parameters and
876 - Old deprecated parameters --{gras,surf,msg,simix,xbt}-log=...
877 don't exists anymore.
878 * Mallocators: allow value NULL for the reset function.
880 - New function xbt_dict_new_homogeneous(void(*)(void*)) to
881 create homogeneous dictionaries, where all the elements share the
882 same free function. Non homogeneous dictionaries will be
883 deprecated in the next release.
884 - Dicts of scalar elements (xbt_dicti_*) are deprecated.
885 - Multi-level dictionaries are deprecated.
887 - new function xbt_dynar_search_or_negative() that is useful when
888 you have less than 2 million elements in your dynar and don't
889 want of the extra complexity of catching exceptions when the
890 element is not found.
892 - Make xbt_os_thread module (for thread portability) public.
893 Documentation is still to come, sorry.
895 - Cleanups and simplifications to make it maintainable again.
896 - Exotic features (such as memalign and valloc) were removed.
897 - The metadata were extended and improved so that the
898 model-checker becomes able to explore and inspect the heaps.
899 - This may induce a performance drop when enable_model-checking is
900 ON in cmake (even if it's not used in the simulation), but it is
901 necessary at this point to get MC working.
903 Turn model-checking OFF if simulation performance matters to you.
904 Not enabling it at runtime is not enough, disable it in cmake.
906 -- Tue May 15 11:30:19 UTC 2012 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
909 SimGrid (3.6.2) stable; urgency=low
911 The "Not coding new stuff allows to polish old things" release.
914 * New bindings to the NS3 packet level simulator (experimental)
915 * Use the raw (efficient) execution contexts instead of the sysv
916 (portable) ones when possible.
917 * libpcre is now mandatory in any cases since not using it led to
918 severe performance loss and possibly other issues
919 * Update the XML platforms:
920 - G5K: include the latest machine in Nancy
921 - GridPP and LCG: new platforms
922 * Documentation was partially updated, at least (more to come)
924 Bug fixes, cosmetics and small improvements
925 * Free terminated processes before the end of the simulation to avoid
926 exhausting the memory of users having very dynamic amount of
928 * Bug fix and cosmetics about canceling non-running tasks
929 * Bug fix about the dot loader's issues when using libcgraph
932 * Create an installer for windows with nsis (amd64 and win32)
933 - Add an hello world project to illustrate simgrid project creation.
934 - Embed libpcre into the Simgrid installer to avoid
935 its compilation burden
936 * The raw execution contexts should work on Apple now
937 * Port to Windows 64 bits
938 - Sysv contexts now have an implementation for this arch
939 - GRAS communication features now support this arch
940 * Drop support for borland compiler on windows
941 - this code was not maintained, and we kinda depend on gcc nowadays
942 * Fix portability issues on kfreebsd/gnu: build error about semaphores
943 * Fix portability issue on unstable ubuntu: linker became picky on
946 -- Wed Oct 5 15:51:01 CEST 2011 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
948 SimGrid (3.6.1) stable; urgency=low
950 The "Oops, we broke Macs too" release
953 * Fixed contexts detection so that raw ones are used when possible
954 * On Mac, do not use Posix Ucontexts with gcc v4.[1-5] since this
955 leads to a strange error, with user code segfaulting sometimes when
956 the generated code is not perfectly aligned (which is not
957 controllable from the user side, depends on the amount of code)
960 * New macro: CATCH_ANONYMOUS, which is like CATCH(e) but without argument.
962 -- Mon Jun 27 13:59:03 CEST 2011 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
964 SimGrid-java (3.6) unstable; urgency=low
967 * Split of every thing from simgrid v3.5 into a separate package.
969 -- 2011-10-05 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
971 SimGrid (3.6) stable; urgency=medium
973 The Summer Release, also known as the "OMG! They Killed Kenny!" version
976 * Bindings now constitute their own package, separated from the main one.
977 Rationale: reduce our maintenance nightmare by reducing the module coupling
978 They will soon be released on their own on gforge.
980 svn co svn://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/simgrid-java
981 svn co svn://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/simgrid-ruby
983 GRAS: It is not considered as stable anymore, but experimental. Sorry.
984 * It's not quite deprecated for now because we have no replacement,
985 but it may soon become the case.
988 * New MPI functions supported: MPI_Comm_disconnect, MPI_Comm_get_name
989 * Fortran: New user-level cache variable to store the rank of the running
990 process. This improves performance by an order of magnitude.
991 * C: New coccinelle script to automatically locate and modify global and
992 local static variables.
993 * Improved SMPI network model with a sender-side gap to account for multiple
997 * New function MSG_comm_get_status(). MSG_comm_test() and MSG_comm_testany()
998 only say if a communication is finished, no matter whether it succeeded or
999 failed. You can call MSG_comm_get_status() to know the status of a finished
1001 * New function MSG_task_dsend() to send a task and detach it. When a
1002 communication is detached, you are never notified of its success or failure
1003 and the memory is released automatically once it is finished. This function
1004 is useful when you don't care about the end nor the success of a
1006 * Change the prototypes of action replay. Sorry for inconvenience,
1007 but this is really more efficient this way (and to adapt your code,
1008 you just have to fix the initialization, that shouldn't be too long)
1009 * Kill the braindead MSG_task_refcount_dec() function. I guess nobody
1010 ever managed to do anything useful with it.
1011 * New function MSG_comm_testany(). Similarly to MSG_comm_waitany(), it
1012 takes a dynar of communications. It returns immediately and gives the
1013 index of a finished communication (if any).
1014 * New example: a basic implementation of the Chord P2P algorithm.
1017 * New model for multi-core CPUs. You can now use the core attribute to
1018 precise the number of cores of a host. This is a basic model. Every
1019 process running on the host receives at most the power provided in
1020 the DTD (throughput<=power). Total throughput of process cannot exceed
1022 * New peer tag. This peer tag creates a tiny AS comprising a host and a
1023 router linked by an up-link and a down-link (possibly asymmetrical).
1024 This kind of pattern allows to easily build last-mile model style platforms.
1025 Aggregating such patterns in a rule-based AS is thus the technique of
1026 choice for modeling large peer-to-peer/volunteer computing/cloud platforms.
1027 * New model for Vivaldi routing. We transformed the Vivaldi network model
1028 into a Vivaldi routing model (based on the rule-based model). This allows to
1029 combine Vivaldi based latencies with last-mile platforms.
1032 * Added a check for NaN of IEEE754 infinite in the double entries of
1034 * Introduce a new context factory "raw", highly inspirated from the
1035 ucontext factory, but using manually crafted functions in assembly to
1036 do the work in an efficient manner.
1037 * Allow to change the used context factory at run time, not only at
1038 compilation time. Use --cfg=contexts/factory:raw for maximal speed.
1039 * Add an option --cfg=contexts/stacksize:N to set the stack size of the user
1040 contexts at runtime (only with raw contexts or ucontexts).
1041 * Completely rewrote this module to allow parallel execution of user
1042 processes. Use --cfg=contexts/nthreads:N to execute user processes
1043 with N parallel threads (the default is 1, meaning no parallelism).
1044 * Allow to decide dynamically between sequential and parallel modes.
1045 When nthreads > 1, you can use --cfg=contexts/threshold:P to run the user
1046 processes in parallel only when their number is greater than or equal to P
1048 * Added a check for NaN of IEEE754 infinite in the double entries of
1052 * New command line option: if you pass --cfg=verbose-exit:0, SimGrid
1053 won't output the state of processes when interrupted with Ctrl-C
1054 * Add a new function xbt_dynar_to_array that transforms a dynar into a
1055 NULL-terminated array. This may solve backward compatibility issues
1056 due to the change to return type of SD_simulate. See also:
1057 http://lists.gforge.inria.fr/pipermail/simgrid-user/2010-December/002206.html
1058 * Add new macros with variable number of arguments.
1059 - in xbt/log.h: XBT_DEBUG, XBT_VERB, XBT_INFO, etc.
1060 - in xbt/asserts.h: xbt_assert
1061 - in xbt/cunit.h: xbt_test_{add,fail,assert,log}
1062 - in xbt/ex.h: THROWF and RETHROWF.
1063 Define XBT_USE_DEPRECATED if you want to use the old numbered macros like
1065 * Change xbt_die() to accept a format string with arguments, just like printf.
1066 * New data structure: xbt_lib_t, like a dict but more general and with better
1070 * New configuration options
1071 Options triva/categorized and triva/uncategorized can be used to generate
1072 graph configuration files for Triva visualization tool.
1073 * Configuration option tracing/platform is renamed to tracing/categorized
1074 * XBT logging makes tracing error checks easier, new root log hierarchy: instr
1075 * New TRACE_user_link_variable interface:
1076 User provides the name of the link and the tracing variable to attach to it
1077 * the declaration of tracing categories must be done after the environment
1079 * simpler tracing interface, just one way to declare categories
1080 TRACE_category or TRACE_category_with_color, it is up to you
1081 * links in the trace file are again identified by their names
1082 * trace contains the full platform hierarchy exactly as declared using the ASes
1083 * Options tracing/msg/[task|process]:1 groups the process by hosts
1084 for both cases, tasks and processes must have names that are unique during the simulation
1085 these options generate traces that are suited to gantt-charts, such as the space-time view of Paje
1086 * The experimental option tracing/msg/volume is deprecated
1087 its functionality may be reincorporated if needed
1089 The tracing generates a trace file with unordered timestamped events,
1090 because of the way the core simulator (surf) works. A script available
1091 at the tools directory (fix-paje-trace.sh) can be used to put the events
1092 in order. We have changed the tracing so it can generate ordered timestamped
1093 events in the final trace, but depending on the simulator (and how much time
1094 is simulated) that can lead to a huge memory utilization. It is deactivated
1095 by default, but it can be activated using the --cfg=tracing/buffer:1 switch.
1097 Build Infrastructure
1098 * Define a SIMGRID_VERSION macro in simgrid_config.h.
1099 - We are trying hard to keep the API stable, but it may happen that
1100 some things change (we're a research project after all, not a
1101 nuclear plant operating system). If such things should happen, you
1102 could rely on that macro to adapt.
1103 - current value: 30600 for 3.06.00, aka 3.6
1104 * Define macro MAKE_SIMGRID_VERSION(major, minor, patch) to help building
1105 a number that can be compared with SIMGRID_VERSION.
1106 * Add a build option -Denable_debug (set to ON by default): when set to OFF,
1107 assertions and verbose/debug logging events are disabled at compile time.
1109 -- Tue Jun 21 08:57:43 CEST 2011 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
1111 SimGrid (3.5) stable; urgency=medium
1114 * New feature to any SimGrid-based simulator: Model-Checking
1115 Check SIN#1 for more details.
1118 * New Model SMPI (three-interval linear regression for correction factors)
1119 See RR-7426, available at http://hal.inria.fr/inria-00527150
1120 * Ability to use FORTRAN MPI code (through f2c, automatically privatized)
1121 * New MPI functions supported: MPI_Get_count(), MPI_Comm_split()
1122 * New: RAM folding (see RR-7426 and examples/smpi/NAS/DT-folding)
1123 * New: execution sampling (see RR-7426 and examples/smpi/NAS/EP-sampling)
1124 * See also src/smpi/README
1129 - Tracing API changes: TRACE_start and TRACE_end should not be called
1130 by user-code. They are automatically called by simulators created
1131 with SimDAG, MSG and SMPI if the toolkit is compiled with
1132 tracing_enabled=ON. Categories declaration and utilization remain the
1133 same for MSG and SimDag.
1134 - A function was added to the tracing API to declare categories with
1136 - TRACE_category_with_color (char *category, char *color)
1137 where color must be in the following format
1138 "%f %f %f", red, green, blue
1139 and red, green, blue are float values in the interval [0, 1]
1140 - User can specify NULL as color parameter, or continue calling
1141 TRACE_category (cat)
1142 On that case, the tracing system will define random colors
1143 - The following command-line options are supported:
1144 --cfg=tracing/filename:msg.trace
1145 --cfg=tracing:1 (activate tracing, needed to use others)
1146 --cfg=tracing/platform:1 (categorized resource use)
1147 --cfg=tracing/uncategorized:1 (uncategorized resource use)
1148 --cfg=tracing/msg/task:1 (task creation)
1149 --cfg=tracing/msg/process:1 (process creation, migration)
1150 --cfg=tracing/msg/volume:1 (volume of MSG send/recv)
1151 --cfg=tracing/smpi:1 (SMPI interface tracing)
1152 --cfg=tracing/simdag:1 (allow SimDAG tasks receive categories)
1153 - examples of examples/msg/tracing updated
1155 - DAXLoader and DOTLoader functions can generate tasks with categories
1156 - A new function to attribute a category to SD tasks:
1157 TRACE_sd_set_task_category (SD_task_t task, char *category)
1158 * Tracing the MPI interface implemented by SMPI
1159 - Collective operations are traced with states
1160 - Point-to-Point operations are traced with states/links
1161 - Tracing activated by a parameter "-trace filename" passed
1162 to smpirun during execution (considering that simgrid
1163 is compiled with tracing enabled)
1164 - To run the simulation with gdb, the simulator
1165 accepts --cfg=tracing/smpi:1 to trace SMPI
1166 - tesh files to check if smpi tracing is ok
1167 - See examples/smpi/NAS/DT-trace
1168 * GTNetS tracing re-worked
1169 - adaptation to the tracing system of GTNets to cope
1170 with modifications regarding the fullduplex mode
1171 - new tesh files to check if gtnets tracing is ok
1174 * Asynchronous communications through the functions:
1175 MSG_task_isend/irecv and MSG_comm_test/wait/waitall
1176 * New function: MSG_load_platform_script()
1177 to make possible using a lua script instead of XML files to set up platforms
1178 * New function: MSG_set_function
1179 to associate functions to processes, used when bypassing the parser
1180 * New functions: MSG_task_set_name(), MSG_task_set_compute_duration()
1182 Platforms: Add some more examples in examples/platforms
1183 * Grid'5000: see www.grid5000.fr
1184 * *_30000_hosts.xml: various huge files [mainly scalability testing]
1187 * Change the XML format. This is a very important modification. SimGrid
1188 3.5 introduces a new hierarchical format based on the notion of
1189 Autonomous Systems. Compatibility with old format is ensured
1190 through the perl script provided in the install bin directory
1191 bin/simgrid_update_xml.
1192 It is now possible to build platforms with specific routing
1193 mechanism (Full/Dijkstra/DijkstraCache/Floyd) and to easily
1194 connect several platforms together. We will try to provide soon
1195 set of realistic platforms exploiting these properties (have a
1196 look at examples/platforms/ for the moment).
1197 * Take the opportunity of the XML format change to be a good XML citizen:
1198 rename link:ctn to link_ctn and similar changes (also dealt with by
1200 * Add a new routing scheme (rule-based) using regular expressions. It
1201 enables to have an extremely low memory footprint when the
1202 underlying routing is simple and can be compactly described. You
1203 need to have libpcre4-dev (perl regular expressions) installed if
1204 you want to use this routing scheme.
1205 * Revive the cluster TAG and allow to easily and efficiently (both in
1206 term of memory and speed) connect clusters together. Have a look
1207 at teshsuite/simdag/platforms/ to see how this can be done. With
1208 this tag, you can create clusters with thousands of tasks at no
1209 cost (have a look at examples/platforms/).
1210 Note: clusters are implemented as ASes, so there is no need for an
1211 enclosing AS tag if you have only one cluster in your platform.
1212 * Add new generic functions in the public interface that allows the user
1213 to call SURF 'create_resource' methods from your code (same
1214 functionality as the XML bypass mechanism but with a much lighter
1216 * Add a new model (enabled through command line --cfg=network/model:SMPI)
1217 that uses a piecewise linear approximation to produce better
1218 results when exchanging small messages.
1219 * Add a new parameter to handle correctly full duplex link and account
1220 for interferences between uplink and downlink communications
1221 (activate with --cfg=fullduplex:1).
1224 * Rename the SD_READY (all dependencies are satisfied and task is
1225 scheduled) state in SD_RUNNABLE and define a new SD_SCHEDULABLE (all
1226 dependencies are satisfied) state.
1227 This prevents a confusion between the notion of "ready to schedule"
1228 (SD_SCHEDULABLE) used in DAG scheduling and that of "ready to be
1229 simulated" (SD_RUNNABLE) used by the simulation kernel.
1230 * Change the way a task is considered as ready. Instead of removing
1231 dependencies when a task is done, a counter is decreased. This way,
1232 it is always possible to reach ancestors thanks to the
1233 SD_taks_get_parents function (even after the end of the simulation.)
1234 * Change the return type of SD_Simulate from (SD_task_t*) into
1235 xbt_dynar_t. This function was in handling a dynar internally and
1236 converted it into a NULL terminated array for historical reasons.
1237 * New function SD_dotload(char*) to load a DAG described in dot
1238 format. This loader and the corresponding examples require the
1239 installation of the graphviz library.
1240 * Fix a bug in the management of tasks of size 0 in the surf network
1241 models. This problem was only visible with SIMDAG and you should
1242 thus disregard results produced with earlier versions if you
1243 relied on this feature (some tasks were blocked because of this).
1244 * Fix a bunch of stuff that prevented to use classical models with SIMDAG
1245 even though your applications were doing only point-to-point
1246 communications and sequential computations. Now you can really use any
1247 model you want (of course, if you create real parallel tasks, which are
1248 not implemented in most models beside ptaskL07, this will abort).
1249 * Add an example that schedules a DAX on an heterogeneous platform
1250 using a Min-Min strategy.
1251 * New function SD_workstation_get_current_task() that returns the kind
1252 of task currently running on a workstation in the sequential access
1254 * Raise some warnings when unexecuted tasks remains at the end of the
1255 simulation. This is usually caused by cycles in the DAG.
1258 * New function: SIMIX_process_set_function() called by MSG_set_function
1259 * Change the underlying waiting queue in semaphores so that a process
1260 can wait on several of them simultaneously (as in waitany).
1261 * Fix the way to handle tokens in semaphores so that all access patterns
1262 work: {acquire, acquire_timeout, waitany} / {release, release_forever}.
1263 * kill the dirty pimple SIMIX_message_sizes_output()
1264 Please use (proper) visualization instead
1267 * New data container: setset (set of sets of elements)
1268 * New module: mmalloc (mapped malloc, allowing to have several
1269 independent segments of malloc)
1270 * New function: xbt_dict_cursor_set_data()
1271 * New functions: xbt_dynar_sort(), xbt_dynar_compare()
1272 * New function: xbt_dynar_is_empty()
1273 * New function: xbt_fifo_get_last_item()
1274 * Fix xbt_dynar_shrink(): use the right element size.
1275 * Fix xbt_dynar_set*(): allow index larger than current size and memset 0
1276 uninitialized areas during expand.
1277 * Fix semaphores: previous implementation was severely broken.
1278 * Use library init/fini functions for our initialization.
1279 - you can use logs and other feature as soon as you want in your
1280 code (even before the xbt_init / MSG_init)
1281 - xbt_exit is now a no-op and produce a warning when used.
1284 * Port GRAS to new SIMIX mechanisms. This allows gras users to
1285 benefit from the latest improvement to the simulation kernel.
1286 * Kill measurement sockets for now. If you rely on them, sorry. This
1287 release is not for you. This feature will be reintroduced in the
1288 future, but we cannot delay the release any further.
1289 * New function: gras_msgtype_get_name().
1290 * Implement gras_agent_spawn in RL too (the prototype changed a bit)
1291 * Fix (at last) the pmm example: it should not randomly fail anymore.
1293 Build chain: bug fixes and overall polishing
1294 * Cmake is now stable enough. Hence, we killed the autotools.
1295 * Port to windows ( TM :)
1296 * Fix the 'make install' target.
1297 No need to use 'make install-simgrid' anymore
1298 * Introduce a 'make dist' target compiling a *source* archive
1299 'make package' compiles a binary archive
1300 * Compile java files only on need
1301 * Add --cd and --setenv command line options to tesh
1302 * Out of source builds are not fully supported yet, but we are close
1303 * Enable supernovae and optimization flags by default for our users
1306 * Add layer to set up environment directly from lua, without XML.
1307 * The effect of gras_stub_generator can be achieved through
1308 lua too (check examples/gras/console/ping_generator.lua)
1310 -- Wed, 01 Dec 2010 22:09:23 +0100 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
1312 SimGrid (3.4.1) stable; urgency=low
1314 The "Polishing easter eggs is probably a good idea" release.
1315 This is a bug fixes release only.
1319 * Fix a bug preventing the tasks from begin garbage collected.
1322 * Fix a bug occuring when a host involved in a communication fails.
1323 This was not detected properly by the other peer involved in the
1324 communication. Now, it's reported as a network error.
1327 * Warn the user about loop dependencies in data flow of DAX files
1328 * Obey the control-flow dependencies of DAX files
1331 * Add option "enable_smpi" allowing to not compile SMPI.
1332 Probably useful for the (Mac) users experiencing a build error here
1333 * Improve the detection of lua5.1 and ruby1.8
1335 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Tus, 04 May 2010 28 16:11:16 +0100
1337 SimGrid (3.4) stable; urgency=low
1339 The "Easter in Cargese" release. Also known as (major changes):
1341 * the "se habla Java, Ruby 話せます, fala-se Lua (and deaf-friendly)"
1342 ~> bindings were greatly improved
1343 ~> new tracing infrastructure for better visualization introduced
1345 * the "Welcome to configury modernity" release.
1346 ~> we switched from autotools to cmake, and improved our cdash
1349 A more detailled list of changes follow (full detail in svn log).
1351 Java Bindings: Various Cleanups
1352 * (install java-gcj-compat-dev on debian-like to use them)
1353 * Remove put/get: no need to export deprecated interface in Java
1354 Use send/receive instead.
1355 * Cleanup the examples and add a README per directory
1356 * Remove example autoDestination (that's the only way to go now)
1357 * Remove example explicitDestination (was a plain copy of basic)
1358 * Make JniException a runtime exception, so that there is no need to
1359 declare the fact that you may encounter such a beast. I guess that
1360 nobody will ever want to survive such error.
1361 * Create specific errors for each MSG case of failure:
1362 host failure, transfer failure, timeout, task cancelled
1363 * Cleanup the exceptions that may get thrown by each function
1364 * Other internal cleanups in Java bindings. Performance still bad :/
1365 Ruby and Lua Bindings: create them
1366 * (install ruby1.8-dev/liblua5.1-0-dev on debian-like to use them)
1367 * That's new and great, you should try them out.
1368 Same functionalities than Java bindings, only even less polished
1370 * Kill the useless "rate" argument of SD_task_get_execution_time()
1371 Everyone used to provide -1 as a value, it was not used, and the
1372 semantic of a possible use wasn't even clear.
1373 * SD_SCHED_NO_COST: Constant to use as cost in SD_task_schedule()
1374 either as comm costs or compute costs to mean that there is no
1375 such thing for that specific task.
1376 * Add a SD_task_set_name() function
1377 * Fix SD_task_unschedule() on typed tasks
1378 * Fix SD_task_get_execution_time() to return seconds, not flop*sec
1379 * In DAX loader, accept useless 'level' attributes to <job> since
1380 LIGO DAGs have them (seem to be to ease graphical representation).
1382 * Add an example masterslave_mailbox.c using send/receive and not
1383 the deprecated put/get interface.
1384 * Kill the MSG_paje_output() function. It's a noop since 2 years.
1385 * Kill MSG_WARNING and MSG_FATAL return codes: they were not used
1387 * Rename MSG_TIMEOUT_FAILURE into MSG_TIMEOUT for sake of logic
1388 (declare MSG_USE_DEPRECATED to still have the old name)
1389 * Add a MSG_task_set_data() function
1390 * About trace replay (see examples/msg/actions):
1392 - Allow to work with splitted trace files for each process
1393 Give the specific trace file as argument of each process,
1394 and call MSG_action_trace_run(NULL)
1395 You can still have one merged file for all processes.
1396 - Fix implementation of collective operations
1397 * Allow task_execute() on 0-sized tasks (closes #10063)
1399 * This is the first release of SimGrid where SMPI is not considered
1400 beta anymore (even if some corners should still be improved)
1401 * Port over the new SIMIX_network submodule (internal refactoring)
1402 * Basic support to log events as with SMPE (use --cfg=SMPE:1)
1403 * Implement more missing elements of the standard:
1405 - MPI_MAXLOC MPI_MINLOC + all associated datatype MPI_DOUBLE_INT,
1407 - MPI_Address() MPI_Get_count() MPI_Type_free() MPI_Type_extent()
1408 MPI_Scan() MPI_Get_processor_name()
1409 - Added implementation of missing case for Alltoall (warning: it's
1410 *not* the bruck variant from OpenMPI; based on Alltoallv instead)
1411 - SMPI_MPI_Gather() SMPI_MPI_Gatherv() SMPI_MPI_Scatterv()
1412 SMPI_MPI_Reduce_scatter() SMPI_MPI_Allgather()
1413 SMPI_MPI_Allgatherv()
1414 * Bug fixes include:
1415 - MPI_Waitsome() was broken
1416 - Allow relative includes in smpicc
1417 - Command line cfg argument 'reference_speed' was ignored...
1418 - Some functions did not properly lead to auto-benching of user code
1419 - smpicc passes -O2 by default (just like openmpi one)
1421 * add SIMIX_action_suspend() and SIMIX_action_resume() functions
1422 * Bug fixes about timeouts during communications
1423 * add SIMIX_message_sizes_output() as a pimple to write to file the
1424 amount of messages per size. Use gnuplot to get histogram.
1425 Pimple because that's the only user-visible function of simix,
1426 defined directly in xbt.h (irk, sorry)
1428 - Add a SIMIX_sem_get_capacity() function
1429 - Fix interactions with processe resume/suspende
1430 - release_forever() was stupidly broken
1431 - Fix SIMIX_display_process_status() for processes in a semaphore
1432 - Make SIMIX_sem_block_onto() user-visible
1433 * Refactoring context stuff:
1434 - Use pseudo-OOP for better modularity
1435 - reimplement SIMIX_process_kill() without process_schedule() so
1436 that the latter can take as invariant that it is called from
1438 - Merge context_start into context_new for sake of simplicity
1440 * Add a Vivaldi network model, coded live during SUD'10 ;)
1441 * Rename configuration variables to start a hierarchy:
1442 o cpu_model -> cpu/model
1443 o network_model -> network/model
1444 o workstation_model -> workstation/model
1445 * New configuration variables:
1446 o network/bandwidth_factor: correction to bandwith
1447 o network/latency_factor: correction to latency
1448 o netwotk/weight_S: correction to the weight of competing streams
1449 * Add a long description to the models, that users can see with such
1450 argument on the command line: --cfg=cpu/model:help
1451 * --help-models display the long description of all known models
1453 * config: add the ability to set a default value after registration
1454 Does not override any previously set value (e.g. from cmd line)
1455 * dict: allow to have integer key and data.
1456 When so, you need to use the following functions
1457 void xbt_dicti_set(xbt_dict_t dict, uintptr_t key, uintptr_t data);
1458 uintptr_t xbt_dicti_get(xbt_dict_t dict, uintptr_t key);
1459 void xbt_dicti_remove(xbt_dict_t dict, uintptr_t key);
1460 In contrary to regular dicts, the key is not malloced before copy.
1461 Mixing scalar and regular elements in the same dict is not tested
1463 * Allow to use xbt_dynar_shrink() to expend the dynar instead
1464 Tracing for Visualization:
1465 * SimGrid is now instrumented in order to generate a trace file for
1466 visualization analysis: to use it, need to compile SimGrid with the
1467 "tracing" option enabled, and instrument the program using SimGrid with
1468 TRACE_start, TRACE_category, TRACE_msg_set_task_category and TRACE_end
1469 (among other functions).
1470 * The instrumentation only traces the platform utilization for now
1471 * Documentation to use the tracing functions and how to analyze the
1472 traces with the Triva tool is written.
1473 * More information about: SimGrid FAQ (in the section Tracing Simulations
1476 * We moved to cmake as default build system. Autotools support will
1477 be dropped soon. Check the FAQ for more info about how to use it.
1478 * Greatly improved our cdash/ctest interactions
1479 Check http://cdash.inria.fr/CDash/index.php?project=Simgrid
1480 * Added memory checking tests with valgrind; lot of memleak fixing.
1481 This may be the first release of simgrid with so few memory issues
1482 * Added code coverage tests.
1483 Our coverage is still improvable, but at least we see it on cdash.
1485 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Wed, 28 Apr 2010 28 17:11:16 +0100
1487 SimGrid (3.3.4) stable; urgency=low
1489 The "Desktop Grid needs love too" release (also called Xmas release).
1491 Models improvements:
1492 * Major speedup in the maxmin system solving by using lazy evaluation
1493 Instead of solving completely the maxmin system at each iteration,
1494 only invalidate (and recompute) the modified parts.
1495 This new feature is enabled in default models but you can try to
1496 turn it on with "--cfg:maxmin-selective-update=1" for other models.
1497 * Cas01 IMproved as default CPU model
1498 This CPU model is the same Cas01 model, but it uses the
1499 maxmin-selective-update flag and a heap structure to manage
1500 actions on SURF kernel.
1501 It reduces the complexity to find the next action to finish and,
1502 consequently, it's faster than the old Cas01.
1503 This is the new default CPU model (Cas01).
1504 * Rename the old Cas01 model to Cas01_fullupdate
1505 Keep the old cpu model Cas01 with the new name of Cas01_fullupdate.
1506 Use "--cfg=cpu_model:Cas01_fullupdate" to use the old default CPU model.
1507 * CpuTI (CPU Trace Integration)
1508 A new CPU model whose objective is simulate faster when using
1509 availability trace files.
1510 Instead of using a full featured, over engineered maxmin system for
1511 CPU modeling, this model does the pre-integration of traces files
1512 to calculate the amount of CPU power available, and so, executes
1513 faster than the old CPU models.
1514 Use "--cfg=cpu_model:CpuTI" to change to this CPU model.
1515 * Use LV08 as default network model since it gives better accuracy
1516 for small messages and shouldn't change things for big ones.
1517 Use --cfg=network_model:CM02 to get the previous behavior.
1520 ******************************************
1521 *DO NOT MIX 3.3.4 RESULTS WITH OLDER ONES*
1522 ******************************************
1523 * The new CPU model may changes simulations!
1524 The point is that events occurring at the exact same timestamp
1525 are not scheduled in the same order with the old and new
1526 version. This may be enough to completely change the execution
1527 of simulations in some cases.
1528 * The new network model will change simulations!
1529 This new model is more realistic than the previous one, so you
1530 should consider redoing your old experiments with this model.
1531 Sorry for the inconvenience.
1534 * Introduce the supernovae compilation mode
1535 When compiled that way, the whole SimGrid (or almost) is put in a
1536 single compilation unit and compiled in one shoot.
1537 This is to help gcc which has difficulties to inline stuff from one
1539 The speedup seem to be above 15%, althrough more tests are needed on
1540 amd64 to confirm that gain.
1543 * Port of MSG's mailbox on top of SIMIX network
1544 The put/get mechanism was greatly simplified on the way.
1547 * New SIMIX network module. Provides:
1548 - Mailbox: rendez-vous mecanism to find with who you want to speak
1549 - Synchronous send/recv: easier and hopefully faster since the
1550 logic is handled in the maestro process directly now
1551 - Asynchronous send/recv: you dreamt of it? It's here now
1552 Too bad that nobody cared enough to propagate the change to MSG.
1553 * Add semaphores as SIMIX synchronization mechanism.
1556 * new function SD_daxload(char*) to load a DAX file
1557 (see http://vtcpc.isi.edu/pegasus/index.php/WorkflowGenerator)
1558 * Introduce typed tasks. Specify its kind and cost at creation.
1559 At scheduling, just give where it should be placed, and the cost
1560 for each involved resource is automatically computed.
1561 Existing constructors so far (more to come of course):
1562 - SD_task_create_comm_e2e() for end-to-end communication
1563 - SD_task_create_comp_seq() for sequential computation
1564 Use SD_task_schedulev() / SD_task_schedulel() to schedule them.
1565 * new function SD_task_dump() for debuging display
1566 * new function SD_task_dotty(task,FILE*) writing to file the info
1567 about the task in dotty format
1568 * SD_task_dependency_exists() can now cope with having one of its
1569 arguments NULL. If so, it tests whether the other argument has any
1571 * Add getters on list of preceding/following tasks:
1572 SD_task_get_parents(task) and SD_task_get_children(task)
1573 * Add getters on amount of workstations and list:
1574 SD_task_get_workstation_count(t) and SD_task_get_workstation_list(t)
1575 * Add getter on task kind: SD_task_get_kind(task)
1576 * Update the start_time and finish_time of tasks on completion/failure
1577 * Bugfix: Remove task from state swags when destroyed
1580 * New function: void gras_cpu_burn(double flops) -- a simple CPU burner
1583 * New function: xbt_dynar_dopar(dynar,fun) to map a function over the
1584 dynar with one separate thread per value of the dynar.
1585 * Change the prototype of xbt_thread_create(), sorry.
1586 Added a boolean parameter indicating whether we want to join this
1587 thread (used in SG only for now)
1588 * Implement xbt_thread_join and xbt_thread_yield in SG also.
1591 * GTNetS wrappers should now be usable again (and betterly tested too)
1592 * Fix a major regression from 3.2 where the timeout provided to
1593 MSG_task_put_with_timeout() was used as absolute time before which
1594 the comm should be done.
1595 * Start to fix the <cluster> tag.
1596 - Internal links should be good now (beside of the loopback, which
1597 use the private link instead)
1598 - paths to the external world is still rather broken
1599 - the <route:multi> tag is just broken. Actually that's brain-dead.
1600 We need sth like <route:multi src="myCluster" dst="$*-${myCluster}">
1601 to make it less stupid
1602 ** Check your platform with teshsuite/simdag/platforms/flatifier **
1603 * Fix a source-level compatibility glitch from 3.2: after defining
1604 MSG_USE_DEPRECATED, you can use the old name
1605 MSG_task_put_with_time_out() for MSG_task_put_with_timeout()
1606 * Allow to compile from the SVN with automake 1.11
1607 * Fix some problems when using the "start_time" tag in deployment XMLs.
1608 * Fix #8569: XBT/synchro.h has redundant declarations
1609 * Fix #8563: MSG return values and exceptions
1610 Introduce a MSG_TIMEOUT_FAILURE return code and use it consistently.
1611 * Integrate patch #8636: Obey DESTDIR when installing documentation.
1612 Thanks to Robson Peixoto.
1613 * Fix a vicious bug in dictionaries inducing that some elements were
1614 not freed on xbt_dict_free()
1616 Portability report of this version:
1617 * Main portability targets:
1618 - linux (ubuntu (804/810/910) /debian (4/5/testing) /fedora (core11))
1619 on (amd64/i386/ia64)
1620 - mac leopard on i386
1621 Known problems: http://cdash.inria.fr/CDash/index.php?project=Simgrid
1622 but nothing critical.
1623 * Other platforms: windows, AIX and others were not tested for this release
1625 Timing report of this version:
1626 * Lazy evaluation brings arbitrary speedup (ie, speedup depending on
1627 scenario parameters). From 8h to a few seconds in desktop grid settings.
1628 * Supernovae brings about 25% speedup on i386.
1630 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 24 Dec 2009 19:07:39 +0100
1632 SimGrid (3.3.3) stable; urgency=low
1634 The "Need for Speed" release.
1636 The timings done to validate the 3.3.2 were faulty.
1637 Instead of being 5% faster, it was 15% slower (compared to 3.3.1).
1639 The problem was a conversion from a manually handled vector to
1640 xbt_dynar_t on the critical path.
1641 xbt_dynar_foreach calls functions, inducing stack management crap.
1643 We inlined these functions and xbt_dynar_foreach is now breath taking.
1644 We also inlined xbt_swag_belong on the way.
1646 Here are some approximate speedup measurements (on master/slaves
1647 simulations lasting between 10s and 20s each):
1648 3.3.1 -> 3.3.2: about same performance
1649 3.3.2 -> 3.3.3: 40% speedup
1650 3.3.1 -> 3.3.3: 40% speedup
1651 3.3.1 with inline patch -> 3.3.3: 30% speedup
1653 Our reading is that the refactoring which occurred in 3.3.2 made us
1654 suffer much more from the xbt_dynar_foreach low performance, but
1655 once we solved this, this refactoring proved to be very performance
1656 effective. From the 40% speedup, somehow, 10% are due to the
1657 inlining and 30% to the refactoring.
1659 That's a pitty that gcc cannot inline functions placed in other files
1660 alone. We have to choose between:
1661 - break the encapsulation (by putting private data structures and
1662 accessors in headers files to help gcc)
1663 - live with low performance
1664 - switch to a decent compiler such as icc (not quite possible).
1666 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 20 Aug 2009 21:21:33 +0200
1668 SimGrid (3.3.2) stable; urgency=low
1670 The "Simplicity does not preceed complexity, but follows it" release.
1672 The main contributors of this release were (lexical order):
1673 Silas De Munck, Stéphane Genaud, Martin Quinson, Cristian Rosa.
1676 * Extract the routing logic into its own object.
1677 (was dupplicated in network.c and workstation_LV07.c;
1678 Allows to implement other ways of storing that info)
1679 => kill now useless network_card concept
1680 - Use dynar to represent routes (instead of void** + int*)
1681 - kill link_set (use surf_network_model->resource_set instead)
1682 - Add a command-line option to choose the routing schema to use
1683 - Add three new models:
1684 * Floyd (shortest path computed at initialization)
1685 * Dijikstra (shortest path recomputed all the time)
1686 * Cached Dijikstra (shortest path computed on need)
1687 All these models where contributed by Silas De Munck, and are
1688 described in his ICCS09 paper.
1690 * Simplify model declaration
1691 (less redirections, less function to write when defining a model)
1692 - Factorize stuff between models:
1695 surf_model_resource_set(model)
1696 surf_model_resource_by_name(model, name)
1697 - Unify the types of models in s_surf_model_t (using an union)
1698 - Embeed fields of common_public directly into s_surf_model_t
1699 - Rename model methods:
1700 action_free ~> action_unref
1701 action_change_state ~> action_state_set
1702 action_get_state ~> action_state_get
1703 - Change model methods into functions :
1704 (model)->common_public->action_use ~> surf_action_ref
1706 * Implement a generic resource; use it as ancestor to specific ones
1707 (allows to kill duplicated code in models)
1708 Drawback: timer command don't need no name nor properties;
1709 workstation_CLM03 don't need no properties
1710 (but I guess we can live with those few bytes wasted)
1712 * Improve the action object model
1713 - implement a constructor avoiding dupplicated code about field
1714 initialization in generic_action part.
1716 * Kill the SDP model: it has an external dependency, is deprecated
1717 in flavor of modern lmm models, and didn't compile since a while
1720 * Relocation of the context module from XBT to SIMIX.
1721 (the context were decoupled from the simix processes, duplicating a lot of code)
1722 => a lot of code was factorized
1723 - less overhead is introduced during scheduling
1724 - simpler API for the context factory
1725 - the logic for process creation,destruction and manipulation was simplified
1726 * Simplification of the s_smx_process_t data structure.
1727 => accesing the simix level data associated to a process is faster now,
1728 and the code is a lot more readable.
1731 * Implement some more MPI primitives:
1732 MPI_Bcast, MPI_Waitany, MPI_Waitall, MPI_Reduce, MPI_Allreduce, MPI_Scatter, MPI_Sendrecv, MPI_Alltoall
1733 -implementation: Bcast: flat or 2-ary tree (default),
1734 Barrier: 4-ary tree,
1736 Allreduce: Reduce then Bcast
1737 Alltoall: "basic_linear" if data per proc < 3Kb, "otherwise pairwise".
1738 Not yet implemented: "Bruck" for data per proc < 200b and comm size > 12
1739 Alltoallv: flat tree, like ompi
1741 * Add support for optimized collectives (Bcast is now binomial by default)
1742 * Port smpirun and smpicc to OS X
1745 * Kill SD_link_get_properties: hard to maintain and makes very little sense
1746 Shout out if you used it.
1749 * Display the list of still queued messages in SG mode when existing
1753 * Add xbt_set_get_by_name_or_null() [Silas De Munck]
1754 * Add xbt_graph_node_get_outedges() [Silas De Munck]
1755 * Add xbt_str_from_file(FILE*)
1756 * Add xbt_dict_get_key achieving a linear reverse search
1757 * Remove the context module
1759 Portability report of this version:
1760 * Main portability targets:
1761 - Linux(debian)/x86/context
1762 - Linux(debian)/x86/pthreads
1763 - Linux(debian)/amd64/context
1764 - Linux(debian)/amd64/pthreads
1765 On these, we still have the eratic breakages of gras/pmm and
1766 amok/saturate_sg reported in previous version. We still think
1767 that the tests are the cause of the fault, not the tested code.
1769 - Mac OSX Leopard/x86/context
1770 Still false negative in tesh autotesting.
1771 Smpi still fails, but this time because readlink does not accept -f
1772 Everything seems to work properly beside of that.
1775 - AIX version 5.3 (only tested contexts this time)
1776 Smpi still fails there because mktemp is not installed.
1777 Everything seems to work properly beside of that.
1779 I managed to compile it for the first time, but several breakages.
1780 Won't delay the release for this exotic platform.
1782 * Windows: it's still lagging behind. If you want to help, please
1785 Timing report of this version:
1786 This version seem to be more than 5% faster than 3.3.1 (on linux
1787 64bits with contextes). The gain is less than expected, we are
1788 investigating this for next release.
1790 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Wed, 19 Aug 2009 17:07:12 +0200
1792 SimGrid (3.3.1) stable; urgency=low
1795 * Implement a --cfg-help to show existing configuration variables
1796 * Build chain do not require doxygen in maintainer mode
1799 * fix a bug on struct sizeof computation, which prevented the
1800 exchange of arrays of structs in some conditions
1801 - added a regression test about this in datadesc_usage
1802 * Allow the exchange of 0-long dynamic vectors.
1803 - for that, use -1 as indicator of dynamic size instead of 0
1804 - This implied to change any size from unsigned long to long,
1805 reducing a bit communication abilities, but I guess that with
1806 64bits being quite common, this is more than enough.
1807 - This also induce a protocol change, thus bumping network protocol
1808 version from 0 to 1 (if we have external users, we have to get
1809 clean on that point too ;)
1810 - added two regression tests about this in datadesc_usage
1811 * Be more verbose when propagating local exceptions
1812 This helps debugging.
1813 * Display the status of simulated processes when receiving SIGINT in
1817 * Allow to control the simulation from a trace file.
1818 New functions MSG_action_register() and MSG_action_trace_run()
1819 The first one allows to associate a function execution to each
1820 kind of action while the second one parses a trace file and
1821 triggers the corresponding actions within the system.
1822 For now, only a toy example is provided in examples/msg/actions
1823 * Add an exemple of process migration in examples/msg/migration
1824 * Fix a bug in task exchange which broke MSG_task_get_sender()
1825 Add a teshsuite regression test for that.
1826 [Bug: if MSG_task_get_sender() is called after sender exit,
1828 * Fix a bug which prevented suspend/resume to work properly
1829 * Display the status of simulated processes when receiving SIGINT
1830 This fixes a regression of v3.3. due to the introduction of SIMIX
1831 * Bug fixing in failure management:
1832 - trace could not start by a failure at time 0
1833 - failure during communications were not working
1836 * Add SIMIX_process_set_name() to change the name of the current
1837 process in the log messages.
1838 * Store smx_hosts in a dict since we only retrieve them by name
1839 * Move the configuration infrastructure to surf
1842 * Move the configuration infrastructure to surf
1845 * Massive internal cleanups:
1846 - Store internal structures on processes instead of hosts (allows
1847 to have more than one process per host, in addition of being more
1849 - Cleanup the initialization/finalization process
1850 - Kill a whole bunch of unneeded synchronization:
1851 processes run in exclusive manner within the simulator
1852 - Move queues from global tables to process data fields
1854 - now accept -platform and -hostfile arguments
1855 - Pass the right rank value to processes according to the hostfile
1856 * Compile the examples by default, and use them as regression tests
1857 * Implement MPI_Wtime()
1858 * Change the reference speed to a command line option
1861 * TCP_gamma can now be specified as command line option using
1862 --cfg=TCP_gamma:10000000.0
1863 * Change the --surf-path cmd line option into --cfg=path:
1866 * Also include strbuff from xbt.h public header
1867 * xbt_ex_display(): do not free the exception after displaying
1868 This allows to do more with the given exception afterward.
1869 Users should call xbt_ex_free() themselves.
1873 Portability report of this version:
1874 * Main portability targets:
1875 - Linux(debian)/x86/context
1876 - Linux(debian)/x86/pthreads
1877 - Linux(debian)/amd64/context
1878 - Linux(debian)/amd64/pthreads
1879 These targets fail about 1/10 of times on gras/pmm, but we believe
1880 that this is because of the test, not because of simgrid.
1881 amok/saturate_sg fails even more rarely, and the test may not be
1884 - Mac OSX Leopard/x86/context
1885 The test suite still spits tons of errors because some obscure
1886 force prevents us from removing the temporary directories
1887 arguing that they still contain some metadata I've never heard of.
1888 Smpi fails because seq is not installed.
1889 Everything seems to work properly beside of that.
1892 - AIX version 5.3 (both contexts and pthread)
1893 Smpi still fails there because mktemp is not installed.
1894 XML inclusions seems rosty on AIX.
1896 * Windows: it's still lagging behind. If you want to help, please
1899 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sat, 27 Jun 2009 00:14:30 +0200
1901 SimGrid (3.3) stable; urgency=high
1905 * JAVA BINDINGS for MSG (you dreamt of them? We made them)
1906 [Malek Cherier & Mt]
1908 * Introduce the SIMIX module: factorize code between MSG and GRAS.
1911 Until now, GRAS were using MSG as an interface to SURF. It was
1912 quite difficult because both interface have several differences
1913 (MSG channels vs GRAS sockets were the most notable point).
1915 This also opens the gate to SMPI (which should occur soon) and speed
1916 up simulations by to 40% (even if it were not the main goal).
1918 **************************************
1919 *DO NOT MIX 3.2 RESULTS WITH 3.3 ONES* Simix may changes simulations!
1920 **************************************
1921 The point is that events occuring at the exact same timestamp are
1922 not scheduled in the same order with the old and new version. This
1923 may be enough to completely change the execution of simulations in
1924 some cases. Sorry for the inconvenience.
1926 * Cleanup and upgrade the XML format to push further scalability
1927 issues (check http://hal.inria.fr/inria-00256883/ for more info)
1929 * Improve the testing infrastructure with tesh. Now a very large part of
1930 the code is tested not only by being run but also by checking that the
1931 output match an expected output [Mt].
1933 * Move on to FleXML v1.7 for the embeeded XML parsers. This version
1934 is really less memory-demanding, which should allow you to use
1935 larger files in SimGrid [AL].
1937 * Inform valgrind about our contextes, so that it becomes usable
1938 with the default (and more effecient) version of SimGrid
1939 [contributed by Sékou Diakite, many thanks]
1942 * Introduce a listener thread in charge of receiving incoming
1943 messages from the network. It allows to overlap communication and
1944 computation but most notably, it removes some stupid deadlocks due
1945 to the fact that so far, a process could not send and receive at
1946 the same time. This made most non trivial communication schema
1948 * Convert the PIDs from long int to int to match the MSG ones (and
1949 linux ones too) [Mt]
1950 * New function: gras_agent_spawn() to launch a new process on
1951 current host. Only working in simulation for now. [Mt]
1952 * New function: gras_os_hostport() returning a constant form (ie,
1953 not needing to be freed) of "gras_os_hostname():gras_os_myport()"
1956 * Make the backtrace of exceptions more human readable [Mt]
1957 * New module: xbt/str [Mt]
1958 a ton of string utility functions (split, join, printf to a newly
1959 allocated buffer, trim, etc)
1960 * New module: xbt/hash [Mt]
1961 SHA1 hashing algorithm (more to come if needed)
1962 * New module: xbt/synchro [Mt]
1963 synchronization tools (mutex and conditions) working the same way
1964 in simulation and in real life (mainly useful for GRAS, but not
1966 * New module: xbt/queue [Mt]
1967 classical producer/consumer synchronization scheme
1968 * xbt_dynar_new_sync() creates a synchronized dynar. All access
1969 (using the classical functions will get serialized) [Mt]
1970 * Make dictionary internal table dynamic. No need to specify its size
1971 anymore; functions xbt_dict_new_ext() and xbt_dict_hashsize_set()
1973 * Make sure the log channels are organized as a tree under windows
1974 (because of ANSI C compatibility issue, any channel were child of
1975 root directly) [Mt].
1978 * Cleaned many thing in surf and fixed a few bugs [AL].
1979 * Add a nice command line configuration mechanism to compose models [AL].
1980 * Add a new model for parallel tasks (ptask_L07) that is less buggy than
1981 the previous one (KCCFLN05). It relies on something that looks like
1982 a max-min sharing mechanism but cannot be written as such. A new solver
1983 was thus designed [AL].
1984 * Add a new solver to lmm. Based on Lagrange optimization and
1985 gradient-based descent, it enables to efficiently maximise systems s.a
1987 sum f_i(x_i) s.t Ax<= b with A_{i,j}>=0 and f_i a concave function.
1989 This solver enables to propose two new network models for TCP Reno and
1990 TCP Vegas based on Low's work. These models still need to be fully
1991 tested though [Pedro Velho].
1994 * Bug fix in SD_simulate. Now the time bound given as argument is
1996 * Use the new parallel task model (ptask_L07) as default.
1997 * Use the SURF command line configuration mechanism.
1998 * 0-size tasks (for synchronization) should now work.
2000 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sun Apr 12 05:20:36 CEST 2009
2002 SimGrid (3.2) stable; urgency=high
2006 We still experience issues on this platform, but we believe that at
2007 least MSG is usable.
2009 GRAS API BREAKAGE (for simplification purpose, sorry):
2010 * the gras_msgtype_by_name is not used anymore. Instead of
2011 gras_msg_send(toserver, gras_msgtype_by_name("request"), &request);
2012 you can write (and must)
2013 gras_msg_send(toserver, "request", &request);
2014 - If you still want to pass a gras_msgtype_t to the function (to cache
2015 the type and avoid the lookup time), use the gras_msg_send_() variant.
2016 - Impacted functions:
2017 gras_cb_register, gras_cb_unregister, gras_msg_send, gras_msg_wait,
2018 gras_msg_rpccall, gras_msg_rpc_async_call, gras_msg_wait_ext
2019 * The callbacks are now expected to return 0 when everything went well
2020 (just like the main() function)
2022 GRAS new features and improvements:
2023 * New module mecanism where user code can use per process globals [Mt]
2024 This is similar to gras_userdata_*() functions, but for libraries. It
2025 factorize some code developped over and over in the examples and AMOK.
2026 It has still to be documented and used (only amok/peermanagement is
2028 * Fix a vicious bug in the TCP buffering mecanism which leaded to message
2029 loss when they were small enough to fit into the buffer and sent quickly
2030 enough so that they can all get received in one shoot.
2031 * gras_datadesc_by_name and gras_msgtype_by_name: now raise an exception
2032 if not found. Use the *_or_null() variant for the old semantic.
2033 * In gras_msg_handle, do not discard messages without callback.
2034 They are probably messages to be explicitly awaited later (ie, proofs of
2035 mis-synchronization in userland since they are sent before being awaited)
2036 No big deal usually.
2037 * gras_socket_meas_send/recv: semantic changed!
2038 The numerical arguments used to be (1) the total amount of data to send
2039 and (2) msg_size. This was changed to (1) msg_size and (2) amount of
2040 messages. This was need for the fool willing to send more than MAXINT
2041 bytes on quite fat pipes.
2044 * Do really rename the hostmanagement module to peermanagement. [Mt]
2045 Ie, rename functions from amok_hm_* to amok_pm_*. This breaks the API,
2046 but this is rather new and this was documented in the module
2047 documentation (poor excuses, I admit)
2048 * Bandwidth measurement semantic changed! This follows the changes to
2049 gras_socket_meas_send/recv explained above.
2052 * A sequential mode has been added to the workstations. When a workstation
2053 is in sequential mode, it can execute only one task, and the other tasks
2054 are waiting in a FIFO. [Christophe Thiery]
2057 * The KCCFLN05 workstation model now handles parallel tasks. It is the
2058 model for SIMDAG. [Christophe Thiery]
2059 * Bug fix in the maxmin solver: Some values were close to 0 instead of
2060 equal to 0, which caused some bad behaviors in
2061 saturated_constraint_set_update. I now use a threshold mechanism like in
2065 * When running manually src/testall, you select specific units [Mt]
2066 testall is the result of our cunit mecanism, and should replace all
2067 the scripty thingy around since bash don't run easily on billware.
2069 * A mallocator system has been added. [Christophe Thiery]
2070 Mallocators allow you to recycle your unused objects instead of freeing them
2071 and allocating new ones.
2073 Documentation update:
2074 * FAQ reworking + New FAQs:
2075 - "Valgrind spits tons of errors!" [Mt]
2076 - "How to repport bugs" [Mt]
2077 - "Cross-compiling a Windows DLL of SimGrid from Linux" [Mt]
2078 - "What is the difference between MSG, SimDag, and GRAS?" [Mt]
2079 - Communication time measurement within MSG [AL]
2080 - I experience weird communication times when I change the latency [AL]
2081 * GRAS tutorial [Mt]
2083 - an introduction to the framework and to the used communication model
2084 - an initiatic tour introducing the most proheminent features:
2086 . Lesson 0: Installing GRAS
2087 . Lesson 1: Setting up your own project
2088 o Part 2: Message passing
2089 . Lesson 2: Exchanging simple messages
2090 . Lesson 3: Passing arguments to the processes (in SG)
2091 . Lesson 4: Attaching callbacks to messages
2092 . Lesson 5: Using globals in processes
2093 . Lesson 6: Logging informations properly
2094 . Lesson 7: Using internal timers
2095 . Lesson 8: Handling errors through exceptions
2096 . Lesson 9: Exchanging simple data
2097 . Lesson 10: Remote Procedure Calling (RPC)
2098 . Lesson 11: Explicitely waiting for messages
2099 . Recapping of message passing features in GRAS
2100 - A HOWTO section containing:
2101 o HOWTO design a GRAS application
2102 More are due, of course. They will come latter. In the meanwhile, you can
2103 check the examples which are still here.
2105 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri Mar 16 21:11:46 CET 2007
2107 SimGrid (3.1) stable; urgency=high
2111 There was a stack corruption somewhere, visible only when optimizing
2112 with these versions. [Vince]
2115 * This is a NEW module! SimDAG (SD for short) is a revival of the old SG
2116 module that enabled to play with Directed Acyclic Graphs. It is built
2117 directly on top of SURF and provides an API rather close to the old
2118 SG. Some old codes using SG are currently under rewrite to check that
2119 all needful functions are provided. [Christophe Thiery]
2122 * Complete rewrite of the KCCFLN05 workstation model. It is now an
2123 extension of the classical CLM03 model that gracefully handles
2124 failures. This is now the default model for MSG and GRAS. It doesn't
2125 handle parallel tasks yet though. [AL]
2126 * Bug fix: Weights were not correctly set in the network part.
2127 WARNING: This may have resulted in incorrect results with simulations
2128 where there are more than one flow on a given link. [AL]
2131 * After a (long ?) discussion on simgrid-devel, we have decided that the
2132 convention we had on units was stupid. That is why it has been decided
2133 to move from (MBits, MFlops, seconds) to (Bits, Flops, seconds).
2134 WARNING : This means that all previous platform files will not work as
2135 such with this version! A warning is issued to ask users to update
2137 A conversion script can be found in the contrib module of the CVS, under
2138 the name contrib/platform_generation/surfxml_update.pl [MQ]
2141 * Bug fix: Processes were started in reverse order, wrt deployment file.
2142 WARNING: if your code relies on this bug, please fix it. [AL]
2143 * Bug fix: Add a test in MSG_task_execute to stop whenever a task is
2144 being executed on two different locations. [AL]
2145 * Bug fix: Failures are now better supported thanks to Derrick's tests
2146 (there was many failure situations I hadn't thought of and that weren't
2147 correctly handled). [AL]
2148 * New function: MSG_host_is_avail indicates you whether a given m_host_t
2152 * New! a real RPC mecanism, as it ought to be since too long. [MQ]
2153 Exception occurring on server-side are propagated back to client (!).
2155 API CHANGE: the callback changed their prototype. Change:
2156 int my_handler(gras_socket_t expeditor, void *payload_data) {
2158 int my_handler(gras_msg_cb_ctx_t ctx , void *payload_data) {
2159 gras_socket_t expeditor=gras_msg_cb_ctx_from(ctx);
2161 * New! function: gras_msg_handleall to deal with all messages arriving
2162 within a given period.
2163 * New! function: gras_socket_server_range to get a server socket in a
2164 range of port numbers (ease to avoid port number conflicts) [MQ]
2165 * New! gras processes display their backtrace when they get a SIGUSR1
2166 or when Ctrl-C is pressed. Use Ctrl-C Ctrl-C to exit.
2167 Sweet to debug RL processes [MQ]
2171 - Do not force experiment sizes to be expressed in kb, or it becomes
2172 impossible to measure the latency this way (needs one byte-long tests)
2173 WARNING: this changes the amok_bw_* function semantic. [MQ]
2174 - Implements the link saturation stuff. [MQ]
2175 * Peer management module:
2176 New! module factorizing code that we wrote over and over [MQ].
2179 * New module: cunit (my jUnit implementation in ansi C) [MQ]
2180 - Test units are placed directly into the library code, they get extracted
2181 automatically and placed into the src/testall binary.
2182 - Convert most of the XBT tests to this system.
2183 * New functions: xbt_dynar_getfirst_as() and xbt_dynar_getlast_as() [MQ]
2184 * XML parsing: rewrote parts of flexml to enable multiple xml parsers to
2185 live in the same C code. This required to change a little bit the API
2186 of surfxml parsing but shouldn't be an issue for end-users. [AL]
2187 * New module: sparse graph structure with basic algorithms (this is work
2188 in progress and the API is not considered to be frozen yet). [AL]
2189 * Display more information on backtraces: source line & function names are
2190 now displayed just like valgrind does (rely on addr2line tool) [MQ]
2191 * New function: xbt_backtrace_display(). Sweet while debuging [MQ]
2192 * Reworked a little bit some #include statements to load only required
2193 headers. Some user code that relied on SimGrid to include stdlib or
2194 stdio may need to include it by themselves. [AL]
2195 * Fixed xbt/log.h. A missing SG_BEGIN_DECL prevented compilation with
2197 * Renamed xbt_host_t into xbt_peer_t since it betterly describes what I
2198 meant. This breaks the API of AMOK and of xbt/config. Sorry about this,
2199 but I guess that almost nobody used those parts. [MQ]
2201 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 14 Jul 2006 01:32:27 +0200
2203 SimGrid (3.0.1) stable; urgency=low
2206 * Unfortunately, I had missed 5 misnamed functions:
2207 xbt_fifo_item_t xbt_fifo_newitem(void);
2208 void xbt_fifo_freeitem(xbt_fifo_item_t);
2209 xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l);
2210 xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i);
2211 xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i);
2212 They're now deprecated. Please use their new versions:
2213 xbt_fifo_item_t xbt_fifo_new_item(void);
2214 void xbt_fifo_free_item(xbt_fifo_item_t);
2215 xbt_fifo_item_t xbt_fifo_get_first_item(xbt_fifo_t l);
2216 xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i);
2217 xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i);
2219 * Bugfix: really disconnect fifo items which are remove_item()ed [AL]
2220 * Documentation: xbt_log module unmercifully reworked [MQ]
2221 * Bugfix: there was a problem with the ending of contexts with
2222 the pthread backend. It caused some weird deadlock or behavior
2223 depending on the pthread implementation. [AL]
2224 * Bugfix: get the exceptions raised in the simulator repport where
2225 and why they come from when they are not catched in time [AL, MQ]
2228 * Bugfix: Do repport the error when two non-connected hosts try to
2229 exchange data (Thanks to Flavien for stumbling into this one) [AL]
2232 * Add additionnal checkings on communications. Assert that two
2233 communicating hosts are connected by a set of links... [AL]
2236 * Add additionnal checkings on channel values in communication [AL]
2237 * New: MSG_task_get_source to see on which host a task was generated [HC]
2238 * New: int MSG_task_probe_from_host(int channel, m_host_t host): returns
2239 the number of tasks waiting to be received on channel and sent
2241 * New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
2242 waits for the first task coming from a given host.. [AL]
2244 GRAS new functionnalities: [MQ]
2245 * Enhance the parsing macro to allow the size of multidimentional objects
2246 to be given thru annotations.
2247 * New example (and documentation): Matrix Multiplication a la RPC
2248 (as when I was young!) and fix a bunch of bugs found on the way.
2250 GRAS performance improvements: [MQ]
2252 * Reduce the amount of cbps creation/destruction by making it static to
2253 datadesc_send/recv() and using a (newly created) cbps_reset (based on
2256 * Change libdata to a set so that we can search for stuff by ID (and thus
2257 reduce the insane amount of dict lookups)
2260 * Actually implement gras_datadesc_copy() so that we don't have to mimick
2261 RL communication on top of SG since it's so uneffective.
2262 It may also be used for inter-thread communication in RL, one day.
2263 * Use gras_datadesc_copy() to exchange messages on top of SG
2265 - improve message exchange performance on top of SG
2266 - deprecate transport_plugin_sg.c:gras_trp_sg_chunk_send() & recv()
2267 * Don't exchange on the network the size of the used part of buffer,
2268 instead, specify the possible buffer size to read().
2270 - reduces the amount of read/write calls (one pair per exchange)
2271 - reduces the amount of exchanged data (the size)
2272 - allows to retrieve all arrived data on receiver side, if we don't need
2273 it right now (subsequent read will peek the buffer)
2274 - allows the receiver to proceed with the begining of the stream before
2275 everything is arrived
2276 - make it possible to build an iov transport (using readv/writev)
2278 - take care of the data with non-stable storage (like stacked data),
2280 * If possible, TCP send uses vector I/O (when writev() is here)
2281 - Don't use it for receive since we send data sizes and data on the
2282 same stream, so we wouldn't be able to chain large amount of chunks
2283 before having to flush the stuff to read the size.
2284 * Rework the transport plugin mecanism to simplify it and reduce the
2285 amount of pointer dereferencement when searching for the right function
2288 * I guess that now, we do almost as few system calls as possible while
2289 doing as few data copy as possible.
2291 To improve it further, we could try to send all the sizes first and then
2292 all the data (to use iov on receiving size), but it's only a partial
2293 solution: when you have 2 dimensional data, the sizes of the second
2294 dimension is data of the first dimension, so you need 3 streams.
2296 I'm not sure the potential performance gains justify the coding burden.
2298 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 21 Oct 2005 14:42:20 +0200
2300 SimGrid (3.00) stable; urgency=high
2303 * New! Give the possibility to hijack the surf parser and thus bypass
2304 MSG_create_environment and MSG_launch_application. Have a look at
2305 examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
2307 -- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
2309 SimGrid (2.96) unstable; urgency=low
2314 * New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
2315 This deprecates the xbt_error_t mecanisms.
2316 It modifies (simplifies) all XBT and GRAS API.
2317 MSG API keeps unchanged (exceptions raised by XBT are catched from
2318 within MSG and masked with existing error handling facilities)
2321 * New! Add a FATPIPE model. [AL]
2322 * New! Add a parallel task model. [AL]
2323 * New! Add automatically a loopback interface (in the default
2324 network model) if none was precised.
2327 * Bugfix: MSG_process_resume now works with the current running process.
2329 * New! Add MSG_parallel_task_create and MSG_parallel_task_execute. [AL]
2330 * Modification of MSG_task_get_compute_duration. Once a task has been
2331 processed, the value returned by this function is now equal to 0. [AL]
2332 * New! Add double MSG_task_get_remaining_computation(m_task_t task) and
2333 MSG_error_t MSG_task_cancel(m_task_t task). Add a state
2334 (MSG_TASK_CANCELLED) to MSG_error_t corresponding to the cancelation
2335 of a m_task. For now, MSG_task_cancel only works with computation
2337 * New! Add double MSG_get_host_speed(m_host_t h) that returns the speed
2338 of the processor (in Mflop/s) regardless of the current load on the
2340 * API Change: use proper naming convention for MSG_getClock and
2341 MSG_process_isSuspended: MSG_get_clock and MSG_process_is_suspended.
2343 * New! Add void MSG_task_set_priority(m_task_t task, double priority).
2344 This function changes the priority of a computation task. This priority
2345 doesn't affect the transfer rate. A priority of 2 will make a task
2346 receive two times more cpu power than the other ones. This function
2347 has been added to suit the needs of Nguyen The Loc and hasn't been that
2348 much tested yet. So if it fails, please report it and send me your code.
2350 * API Change: removed all functions and types that were marked "deprecated"
2351 since many months. Renamed MSG_global_init_args to MSG_global_init.
2353 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Mon, 8 Aug 2005 17:58:47 -0700
2355 SimGrid (2.95) unstable; urgency=low
2358 * Steal some nice code to GNU pth to fix context detection and usage [AL]
2359 * Cleanup in the xbt_config API; add configuration callbacks. [MQ]
2360 * Cleanup in the initialization API: the unused "defaultlog" is dead. [MQ]
2363 * Bugfix: Allow absolute paths for platform description files [MQ]
2364 * Bugfix: do free the variables after use. Leads to drastic performance
2366 * Implement max_duration (ie, timeouts) on resources [AL]
2369 * Implement MSG_config to configure MSG at runtime. xbt_cfg test on a real
2371 * Implement MSG_channel_select_from() to help GRAS now that SURF provide
2372 the needed support (timeouts) [AL]
2375 * Implement measurement sockets. You can now get the bandwidth between two
2376 hosts thanks to AMOK (see below). [MQ]
2377 * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send
2378 dynar over the network (yeah) [MQ]
2379 * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
2380 * simple/static token-ring example. [Alexandre Colucci and MQ]
2381 * Use MSG_channel_select_from() and remove the *slow* hack we had to put
2382 in place before [MQ]
2385 * Differentiate the types "char[22]" and "unsigned char[22]" in automatic
2386 type parsing. "short" and "long" modifiers were also ignored; other
2387 modifier (such as reference level) are still ignored. [MQ]
2388 * Embeed the buffer size within the buffer itself on SG. [MQ]
2389 That way, send() are atomic and cannot get intermixed anymore (at least
2390 the ones which are less than 100k; bigger messages still have the issue)
2391 * Array size pushed by the field, not by the field type (or each
2392 and every long int will push stuff to the cbps) [MQ]
2393 * use select() to sleep since it allows to portably sleep less than one
2396 GRAS (minor cleanups)
2397 * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
2400 * Type Callbacks now receive the gras_datadesc_type_t they work on as argument.
2401 * type category 'ignored' killed as it was never used and were difficult
2403 * whether a type can cycle or not is now a flag, leaving room for more
2404 flags (as "ignored", if we feel the need one day ;)
2405 * Rename raw sockets to measurement sockets since "raw" has another
2406 meaning in networking community.
2409 * Advanced Metacomputing Overlay Kit introduction. It is based over GRAS
2410 and offers features not belonging to GRAS but that most applications
2411 need. One day, it may be a set of plugins loadable at runtime.
2412 * New module: bandwidth
2413 bandwidth measurement between arbitrary nodes running this module. [MQ]
2415 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 30 Jun 2005 16:29:20 -0700
2417 SimGrid (2.94) unstable; urgency=low
2419 The first beta release of SimGrid 3 !
2423 * Update the main page and the FAQ. Adding references to gforge.
2426 * Add a gras_os_getpid function.
2429 * Add MSG_task_get_compute_duration() and MSG_task_get_data_size()
2430 * Extend the logs so that they also print PID, hostname, date, ... if
2432 * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE,
2433 and kill the old version which were in testsuite/
2434 * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead
2438 * Add xbt_os_time(). As the rest of xbt/portability, this is not public
2439 for users. Instead, each programming environment (GRAS, MSG,...) use it
2440 when needed to provide such a feature to users.
2441 Don't shortcut the mecanism or you will also shortcut the virtualization
2442 you need on the simulator.
2446 * Cleanups in configury with regard to compile optimization/warning flags.
2447 Also add -fno-loop-optimize to any powerpc since it's the optimization
2448 killing gcc (< 3.4.0).
2449 * Doxygen cleanups: move MSG examples, kill the second Doxygen phase
2450 needed by MSG examples complications
2451 * Borrow configury beautifications from PHP
2454 * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler
2455 warning (thanks loris for stumbling into this one).
2456 * Bugfix: stop loading private headers (gras_config.h) from the public
2460 * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user.
2461 * Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
2462 RL would imply a DNS resolver, which is *hard* to do in a portable way
2463 (and therefore delayed).
2464 * Implement a real timer mecanism and use it in timing macros. This allows
2465 to avoid rounding errors and get a 0.000005 sec precision in timing
2466 macros. While I was at it, various cleanups:
2467 - allow to declare more than one timed section per file (fix a stupid bug)
2468 - move some private declaration to the right place
2469 - merge conditional execution and timing macros into emulation module
2470 - document the module
2471 - make sure the module cleanups its mess on gras_exit
2472 * Documentation improvements:
2473 - (new) how to compile applications using GRAS
2474 - (new) emulation support (timing macros)
2476 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 13 May 2005 10:49:31 +0200
2478 SimGrid (2.93) unstable; urgency=low
2480 Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version)
2483 - Use Paje properly where used. Still to be sanitized properly.
2484 - Portability fix: Add an implementation of the contexts using pthread
2488 - Add xbt_procname(): returns the name of the current process.
2489 Use it to show the current process's name in all logging.
2491 - fix detection of older flex version and the reaction, since we do
2492 depend on modern ones (we use lex_destroy)
2493 - Better separation of SG and RL in the libs: remove all simulation code
2494 from libgras. As a result, this lib is now only 200k when stripped.
2495 Some of the xbt modules may also be duplicated (two sets and such) and
2496 should be cleaned/killed before SG3.
2497 - Insist on using xlC on AIX because of weird problems involving gcc there.
2498 - Cleanup the make remote stuff. This is now done by scripts
2499 tools/graspe-{master,slave} (GRAS Platform Expender). This is still
2500 mainly for our private use, but we're working on changing them to user
2503 - Bugfix: flush the socket on close only if there is some *output*.
2504 - Bugfix: flush idempotent when there's nothing to send (don't send size=0)
2506 - Add MSG_task_get_name. The task names are mainly for debugging purpose,
2509 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Fri, 4 Mar 2005 14:32:37 -0800
2511 SimGrid (2.92) unstable; urgency=low
2513 Alpha 3 on the path to SimGrid 3
2517 - New! First try of benchmarking macros.
2518 - New! First try so that gras_stub_generator generate deployment and
2519 remote compilation helpers.
2521 - Bugfix: Initialization fix in msg_test.
2525 - Bugfix: applied patch to lexer so that it doesn't need a huge heap.
2527 - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups
2529 - API Change: gras_os_sleep to take the amount of seconds as a double.
2530 Accepting an int was error prone since it was the only location where
2531 seconds were coded as such. It leaded to damn rounding errors.
2532 - Bugfix: Hard to belive that timers ever worked before this.
2534 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Wed, 23 Feb 2005 22:09:21 +0100
2536 SimGrid (2.91) unstable; urgency=low
2538 Alpha 2 on the path to SimGrid 3
2542 - Bug fix in the lmm_solver.
2544 - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/)
2545 through the function MSG_paje_output.
2546 - New! Introducing two new functions MSG_process_kill() and MSG_process_killall().
2547 - It is possible to bound the rate of a communication in MSG with
2548 MSG_task_put_bounded() (was already in the previous version but I had forgotten
2549 to write it in the changelog).
2550 - Bug fix to let GRAS run on top of MSG until we move it directly on top
2555 - Various cleanups to the autotools stuff
2556 - Begin to move Gras examples to examples/gras/
2557 - Let make distcheck work again (yeah!)
2559 - documentation overhauled using doxygen.
2560 gtk-doc-tools is dead in SimGrid now.
2561 - Automatically extract all existing logging categories, and add the list
2562 to the documentation (long standing one, to say the less)
2564 - Cleanup the known architecture table. Reorder the entries to group what
2565 should be, and use a more consistent naming scheme.
2566 (some of the test dataset are still to be regenerated)
2567 - New! Allow library to register globals on each process just as userdata
2569 This is implemented using a xbt_dict and not a xbt_set, so we loose the
2570 lookup time (for now).
2571 Use it in msg and trp.
2572 This cleans a lot the internals and helps enforcing privacy of the
2573 headers between the gras components.
2574 - New! Add a timer mechanism, not unlike cron(8) and at(1).
2575 - Bugfix: gras_os_time was delirious in RL.
2576 - Bugfix: gras_trp_select/RL don't run into the wall when asked to select
2578 - Reenable GRAS now that it works.
2580 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 14 Feb 2005 14:02:13 -0800
2582 SimGrid (2.90) unstable; urgency=low
2584 Alpha 1 on the path to SimGrid 3
2586 * It is a long time since the last release of SimGrid. I'm sorry about
2587 that but as I had told you, I was rewriting a lot of things. I apologize
2588 to those who had been reporting bugs to me and that I had not answered.
2589 If your bug is still in the new version, please tell me. Here is a
2590 summary of the main changes.
2592 * REVOLUTION 1: The SimGrid project has merged with the GRAS project
2593 lead by Martin Quinson. As a consequence SimGrid gains a lot in
2594 portability, speed, and a lot more but you'll figure it out later.
2595 SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
2596 I wanted to release the new MSG as soon as possible and I have
2597 broken GRAS, which is the reason why, for now, only MSG is fully
2598 functional. A laconic description of these projects is available
2599 in the documentation.
2601 * REVOLUTION 2: I have removed SG and I am now using a new simulation
2602 kernel optimized for our needs (called SURF but only the developers
2603 should use it). Hence, MSG is now roughly 30 times faster and I think
2604 that by rewriting a little bit MSG, I could event speed it up a little
2605 bit more. Beside the gain in speed, it is also much easier to encode a
2606 new platform model with SURF than it was with SG. More to come...
2608 * REVOLUTION 3: I have tried to change a little as possible the API of
2609 MSG but a few things really had to disappear. The main differences
2610 with the previous version are :
2611 1) no more m_links_t and the corresponding functions. Platforms are
2612 directly read from a XML description and cannot be hard-coded
2613 anymore. The same format is used for application deployment
2614 description. The new format is described in the documentation.
2615 Have a look in tools/platform_generation. There is a tiny script
2616 that converts from the old platform format to the new one. Concerning
2617 the application deployment format, parsing the old one is tricky.
2618 I think most of you should however be able to convert your files. If
2619 it is really an issue, I can write a C code that does the conversion.
2621 2) the toolbox tbx does not exist anymore. We now have a library
2622 with much more data-structures but without the hash-tables (we have
2623 dictionaries that are much faster).
2625 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800
2627 *****************************************************************************
2628 * Follows the old GRAS changelog. It does not follow the same syntax, but I *
2629 * don't feel like converting the oldies. (Mt) *
2630 *****************************************************************************
2633 Version 2.90: "the long awaited one"
2634 - Finished rewriting and debugging MSG. Rewrote the documentation.
2635 - disable GRAS for now since it needs to be ported to the newest SG
2638 - Finish the port to windows (using mingw32 for cross-compile)
2641 - Main loop and datastructures of SURF. A cpu resource object is
2642 functional. Surf can thus be used to create cpu's with variable
2643 performance on which you can execute some actions.
2645 2004-11-15 Martin Quinson
2646 - Port to ARM. Simply added the alignment and size descriptions. Should
2647 work, but the ARM machines are so slow that I didn't had the opportunity
2648 to 'make check' over there yet.
2650 2004-11-15 Arnaud Legrand
2651 - Trace manager now written. It uses a heap structure and is therefore
2652 expected to be efficient. It may however be speeded up (particularly
2653 when many events occur at the same date) by using red and black
2654 trees. One day maybe...
2655 - Max-min linear system solver written. It uses a sparse matrix
2656 structure taking advantage of its expected use. Most operations are
2657 O(1) and free/calloc are called as few as possible. The computation of
2658 the minimum could however be improved by using a red and black tree
2661 2004-11-03 Arnaud Legrand
2662 - Rename every gras_* function that was in xbt/ to its xbt_
2664 - Add a heap and a doubly-linked list to xbt
2665 - Added a dichotomy to the dictionaries. make check works as well before
2666 so I assume that the patch is correct. I do not know however if things
2667 run effectively faster than before now. :)
2669 Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to
2670 SimGrid, and the version number is bumped to 2.x
2672 2004-10-29 Martin Quinson
2673 - Introduction of the remote errors.
2674 They are the result of a RMI/RPC on the remote machine.
2675 ErrCodes being scalar values, you can't get the host on which those
2676 errors did happen. Extending the error mechanism as in Gnome is possible.
2677 No idea yet whether it is a good idea.
2679 2004-10-28 Martin Quinson
2680 - Interface revolution: the Starred Structure Eradication.
2681 I used to do typedef struct {} toto_t; and then handle *toto_t.
2682 Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
2683 - ???_t is a valid type (builded with typedef)
2684 - s_toto_t is a structure (access to fields with .)
2685 - s_toto is a structure needing 'struct' keyword to be used
2686 - e_toto_t is an enum
2687 - toto_t is an 'object' (struct*)
2689 typedef struct s_toto {} s_toto_t, *toto_t;
2690 typedef enum {} e_toto_t;
2691 Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
2692 s_toto_t) is private.
2694 - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
2695 so that it can set the variable to NULL. It was so for dicts and sets,
2696 it changed for dynars.
2698 - Fix a bunch of memleaks in dict_remove
2699 - Fix a bug in sg/server_socket opening: it failed all the time.
2701 2004-10-07 Martin Quinson
2702 - Speed up dynar lookup operation a bit.
2704 gras_dynar_get is dead.
2706 Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
2707 but should be avoided for efficiency reasons) and gras_dynar_get_ptr
2708 (which gives you the address of the stored data).
2710 gras_dynar_get_as is an helpful macro which allows you to retrieve a
2711 copy of the data using an affectation to do the job and not a memcpy.
2713 int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
2714 int toto = *(int*)gras_dynar_get_ptr(dyn,0);
2716 It does not really speedup the dynar test because they are
2717 setting elements all the time (and look them seldom). But the dict does
2718 far more lookup than setting.
2720 So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
2722 2004-10-05 Martin Quinson
2723 - Allow to (en/dis)able the cycle detection at run time.
2725 Whether we should check for cycle or not is now a property of each
2726 datatype. When you think there may be some cycle, use datadesc_cycle_set.
2727 datadesc_cycle_unset allow to remove this property when previously set.
2729 Note that the cycle detection is off by default since it impacts the
2730 performance. Watch the data you feed GRAS with ;)
2732 This property is hereditary. Any element embedded in a structure having it
2733 set have it set for the time of this data exchange.
2735 You should set it both on sender and receiver side. If you don't set it on
2736 sender side, it will enter an endless loop. If you forget on receiver
2737 side, the cycles won't be recreated after communication.
2739 - Header reorganization.
2740 Kill gras_private.h, each submodule must load the headers it needs.
2742 2004-10-04 Martin Quinson
2743 - Interface revolution: do not try to survive to malloc failure.
2745 Now, gras_malloc and friends call gras_abort() on failure.
2746 As a conclusion, malloc_error is not a valid error anymore, and all
2747 functions for which it was the only gras_error_t return value are
2748 changed. They now return void, or there result directly.
2749 This simplify the API a lot.
2751 2004-09-29 Martin Quinson
2752 - Re-enable raw sockets.
2753 Created by gras_socket_{client,server}_ext;
2754 Used with gras_raw_{send,recv}
2757 It should allow to kill the last bits of gras first version soon.
2759 This is not completely satisfactory yet (duplicate code with
2760 chunk_{send,recv}; a bit out of the plugin mechanism), but it should
2763 - Simplify transport plugin (internal) interface by not passing any
2764 argument to _server and _client, but embedding them in the socket
2767 2004-09-28 Martin Quinson
2768 - Finish the port to AIX.
2769 autoconf was my problem (segfault within the malloc replacement
2770 function. No idea why)
2772 2004-09-16 Martin Quinson
2773 - Fix some size_t madness on 64bit architectures.
2775 2004-09-08 Martin Quinson
2776 - Reduce the number of system headers loaded, overload some more system
2777 calls (such as malloc to cast the result of the system one, and work
2779 - Fix and reintroduce the config support
2781 2004-09-07 Martin Quinson
2782 - Source code reorganization to allow Arnaud to surf all over there.
2783 - Allow to document the logging categories.
2784 - Remove all uppercase from logging categories and useless cleanup in names.
2786 2004-08-18 Martin Quinson
2787 Version 0.6.2 (protocol not changed; API changed)
2788 - Interface cleanup: gras_msgtype_by_name returns the type (instead of a
2789 gras_error_t), and NULL when not found. Functions expecting a msgtype
2790 as argument (msg_wait; msg_send) deal with NULL argument by providing a
2791 hopefully usefull message.
2792 - Portability to prehistoric sparcs again
2794 2004-08-17 Martin Quinson
2795 Version 0.6.1 (protocol not changed; ABI not changed)
2796 - prealloc some buffers to speed things up
2798 2004-08-11 Martin Quinson
2799 Version 0.6 (protocol not changed; ABI expended)
2800 - The parsing macro can deal with the references, provided that you add
2801 the relevant annotations (using GRAS_ANNOTE(size,field_name))
2803 2004-08-09 Martin Quinson
2804 Version 0.5 (protocol not changed; ABI changed)
2805 - Allow to off turn the cycle detection code in data exchange at
2806 compilation time. It should be at run time, but I'm short of time (and
2807 the config stuff is still broken). That way, we keep dict out of the
2808 critical path, which is good because the performance is poor:
2809 - search not dichotomial yet
2810 - dynar give no way to access their content and memcpy everytime
2811 - In composed data description (struct, ref and so on), stop foolness of
2812 keeping the subtype's ID, but store the type itself. This keeps sets out
2813 of the critical path, which is good since they rely on dynar and
2814 dictionnaries. The only loose of that is that we cannot detect the
2815 redeclaration of a structure/union with another content (but I'm not sure
2816 the code detected well this error before anyway). We still can detect
2817 the redefinition discrepancy for the other types.
2818 - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
2819 it breaks the code because of type-punning used all over the place).
2820 This breaks on all non-gcc architectures (for now).
2822 All those changes (plus the buffer of last time) allow me to gain 2 order
2823 of magnitude on cruel tests consisting of 800000 array of integers on two
2824 level of a hierarchical structure (200 secondes -> 4 secondes)
2827 - the selector of reference must now return the type it points to, not
2828 the ID of this type.
2830 2004-08-06 Martin Quinson
2831 Version 0.4 (protocol changed; ABI not changed)
2832 - Allow to pass --gras-log argument to processes in simulation mode. Really.
2833 - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT
2834 - Implement a buffer transport, and use it by default (it relies on tcp in
2835 real life and on sg in simulation).
2836 That's a bit hackish since I had a new field to the structure to store
2837 its data without interfering with the subtype ones. Inheritance
2838 is tricky in C. And that's a kind of reverse inheritance with one class
2839 derivating two classes. Or maybe a game with java interfaces. Anyway,
2840 that's damn hard in C (at least).
2841 Moreover, I got tired while trying to ensure plugin separation and
2842 genericity in SG mode. MSG wants me to do weird things, so let's go for
2843 cruel hacks (temporarily of course ;).
2844 See comment in transport_private.h:71
2845 - do not include all the _interface headers in private but in the files
2846 which really need them (to cut the compilation time when they are
2849 2004-07-26 Martin Quinson
2850 Version 0.3 (protocol not changed; ABI changed)
2851 - Major overhault of the datadesc interface to simplify it:
2852 - shorted the function names:
2853 s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on
2854 - add a trivial way to push/pop integers into the cbps without malloc.
2855 This allows to make really generic sub_type description, which simply
2856 pop their size of the stack.
2857 - add a function gras_datadesc_ref_pop_arr() which does what users want
2858 most of the time: Declare a dynamic array (which pops its size of the
2859 stack) and declare a reference to it. Poor name, but anyway.
2860 - kill the post-send callback, add a post-receive one
2862 2004-07-23 Martin Quinson
2863 Version 0.2 (protocol changed; ABI changed)
2864 - add some testing for cpbs in the test cases, and fix some more bugs.
2865 This invalidate again the little64 data file, since I cannot regenerate
2867 - remove an awfull optimization in the logging stuff, allowing me to:
2868 - understand it again
2869 - learn gcc how to check that the argument match the provided format
2870 - fix all errors revealed by gcc after that
2871 - internal keys of dict are not \0 terminated. Deal with it properly in
2872 loggings instead of segfaulting when the user want to see the logs :-/
2874 2004-07-22 Martin Quinson
2875 - Fix some stupid bug preventing cbps (callback postit) from working
2877 2004-07-21 Martin Quinson
2878 - Some documentation cleanups
2879 - remove the useless last argument of msgtype_declare
2880 - rename the Virtu functions to fit into the 'os' namespace
2881 - move headers src/include -> src/include/gras/ and stop fooling with
2882 gras -> . symbolic link
2883 - make distcheck is now successful
2885 2004-07-19 Martin Quinson
2887 - Build shared library also
2888 - Install html doc to the right location
2889 - stop removing maintainer files in make clean
2890 - build tests only on make check
2892 2004-07-13 Martin Quinson
2894 - No major issue in previous version => change versionning schema
2895 - Re-enable little64 convertion test now that Abdou kindly regenerated the
2896 corresponding dataset.
2898 2004-07-11 Martin Quinson
2900 - Get it working with any kind of structure (we can compute the padding
2901 bytes remotely for all the architectures I have access to)
2902 - Implement the structure parsing macro (still not quite robust/complete)
2903 - Improvement to the remote testing toysuite
2905 2004-07-10 Martin Quinson
2906 [autoconf mechanism]
2907 - get ride of a bunch of deprecated macros
2908 - actually run the test for two-compliment, not only compile it :-/
2909 - test whether the structures get packed (and bail out if yes. Damn.
2910 Alignment is a serious matter)
2911 - test whether the structures get compacted (but respecting the alignment
2912 constraints of each types)
2913 - test whether the array fields of structures can straddle alignment boundaries
2915 - Damnit, double are bigger than float (typo in creation of 'double' datadesc)
2916 (took me 2 hours to find that bug, looking at the wrong place)
2917 - Add gras_datadesc_declare_{union,struct}_close(). They must be used
2918 before sending/receiving and are used to compute the offsets of fields
2919 - Given that padding size depend even on compiler options, keep track of
2920 alignment and aligned_size only for the current architecture. Not a big
2921 deal since we send structure fields one after the other (seems
2923 - Add the datastructure used for IEEE paper by the PBIO guys to the test
2924 program, let it work on linux/gcc/little32. portability todo.
2926 2004-07-08 Martin Quinson
2927 - import and improve remote compilation support from FAST
2928 - make sure make check works on half a dozen of machines out there
2930 2004-07-07 Martin Quinson
2931 Let's say it's version 0.0.3 ;)
2932 - Implement conversions (yuhu!)
2933 - Let it work on solaris (beside conversion, of course)
2934 - Stupid me, using rand() to generate the conversion datatests in not wise.
2936 2004-07-06 Martin Quinson
2937 - Let make dist work, since I'm gonna need it to compile on remote hosts
2938 - Let Tests/datadesc_usage write the architecture on which the file was
2939 generated as first byte.
2940 - Add PowerPC (being also IRIX64), SPARC (also power4) and ALPHA
2941 architecture descriptions.
2942 - Add datadesc_usage.{i386,ppc,sparc} files being the result of execution
2943 on those architectures.
2944 - Optimization: send/recv array of scalar in one shoot
2946 2004-07-05 Martin Quinson
2947 - YEAH! GRAS/SG and GRAS/RL are both able to run the ping example !
2949 - Plug a whole bunch of memleaks
2950 - each process now have to call gras_{init,exit}. One day, their log
2951 settings will be separated
2952 - Continue the code factorisation between SG, RL and common in Transport.
2954 2004-07-04 Martin Quinson
2956 - Redistribution between SG and RL.
2957 We wanna have to accept in SG, so move accepted related parts of RL in
2958 the common part. (more precisely, the dynar of all known sockets is no
2959 more a static in transport.c, but part of the process_data)
2961 [gras_stub_generator]
2962 - Bug fix: Do call gras_process_init from gras_init (wasnt called in RL).
2964 2004-07-03 Martin Quinson
2965 - Create a new log channel tbx containing dict, set, log, dynar (to shut
2966 them all up in one shot)
2968 - Fix the ugly case of reference to dynamic array.
2969 - New (semi-public) function gras_datadesc_size to allow the messaging
2970 layer to malloc the needed space for the buffer.
2972 - gras_socket_close now expect the socket to close (and not its address to
2973 put NULL in it after it). This is because the socket passed to handlers
2974 is one of their argument (=> not writable).
2976 - propagate the interface cleanup from last week in datadesc, ie remove a
2977 superfluous level of indirection. User pass adress of variable
2978 containing data (both when sending and receiving), and not of a variable
2979 being a pointer to the data. Let's say that I like it better ;)
2980 The price for that is constructs like "int msg=*(int*)payload" in
2981 handlers, but it's a fine price, IMHO.
2983 - Let it work in RL (yuhu)
2985 2004-06-21 Martin Quinson
2987 - porting SG plugin and SG select to new standards (works almost).
2988 - plug memleaks and fix bugs around.
2991 - cleanup the prototype of data recv and force users to specify when they
2992 want to handle references to objects. Test case working even for cycles.
2993 - plug memleaks. Valgrind is perfectly ok with this.
2995 2004-06-12 Martin Quinson
2997 - cleanup the separation between plugin and main code in plugin creation
2999 2004-06-11 Martin Quinson
3001 - Reput hook for raw sockets, needed for BW experiments
3002 - kill a few lines of dead code
3003 [Data description] Interface cleanup
3004 - gras_datadesc_by_name returns the searched type or NULL.
3005 That way, no variable is needed to use a type desc once, which makes
3007 - gras_datadesc_declare_[struct|union]_append_name is removed. The last
3008 two parameters were strings (field name, type name), leading to
3010 [Dicos] Interface cleanup
3011 - gras_dico_retrieve -> gras_dico_get ; gras_dico_insert -> gras_dico_set
3012 This is consistant with the dynar API.
3014 2004-04-21 Martin Quinson
3016 - Porting to new standards.
3018 - interface cleanup.
3019 There is no bag anymore, no need to take extra provision to mask the
3020 pointers behind "ID".
3021 Better splitup of functions between files create/exchange/convert.
3022 This is still a bit artificial since convert and receive are so
3023 interleaved, but anyway.
3025 - add a queued message list to procdata (the ones not matching criteria
3027 - factorize some more code between SG and RL wrt procdata
3029 - use gras_exit in example to track memleaks
3030 - get rid of gs_example now that GS is properly integrated into gras
3031 - update run_test to integrate the latest tests (datadesc)
3033 - rename WARNINGn macros to WARNn since it prooved error-prone
3035 2004-04-19 Martin Quinson
3037 - register init/exit functions within gras module mechanism
3038 - send/receive function.
3039 Convertion is not implemented, but short-cutted if not needed.
3040 struct/array elements are sent one by one (instead of block-wise), but
3041 nobody really cares (yet). Get a prototype before optimizing.
3042 - tests (using a file socket) for DD send/receive on:
3043 - base types: int, float
3044 - array: fixed size, string (ie ref to dynamic string)
3045 - structure: homogeneous, heterogeneous
3046 - chained list, graph with cycle
3047 Believe it or not, valgrind is not too unhappy with the results. The
3048 cycle happily segfaults, but the others are ok. And I'm sick of pointers
3052 - Bugfix when using a filename explicitely (instead of '-')
3054 2004-04-09 Martin Quinson
3056 - factorize more code between RL and SG in socket creation
3057 - Complete the implementation and tests of:
3059 o file (only in RL, and mainly for debugging)
3061 I lost 3 days to design a portable address resolver, and then decided
3062 that the prototype mainly have to run on my box.
3063 Addressing portability too early may be like optimizing too early :-/
3065 - use gras_init in the Tests instead of the crappy parse_log_opt
3066 (the latter function is removed)
3067 [Conditional execution]
3068 - New functions: gras_if_RL/gras_if_SG (basic support for this)
3069 [Code reorganisation]
3070 - Get rid of libgrasutils.a since it makes more trouble than it solves.
3071 Build examples against the RL library, since there is no way to disable
3072 its creation for now.
3074 For information, the beginning of coding on GRAS was back in june
3075 2003. I guess that every line has been rewritten at least twice since