1 SimGrid (3.5) unstable; urgency=low
4 * New function: MSG_load_platform_script()
5 to make possible using a lua script instead of XML files to set up platforms
6 * New function: MSG_set_function
7 to associate functions to processes, used when bypassing the parser
9 * add layer to set up environment and bypass the XML surf parser
10 * modify the entry point, to take into consideration when lua is used only as a platform generator
12 * add new callbacks to the CPU & netwok models to create resources
13 no need to pass through the parser callbacks to do so.
14 * add new function to create routes table via the routing model
15 * add generic functions in the public interface
16 that allows the user to call SURF 'create_resource' methods from a lua script.
18 * New function: SIMIX_process_set_function()
19 called by MSG_set_function
21 * Change the way a task is considered as ready. Instead of removing
22 dependencies when a task is done, a counter is decreased. This way,
23 it is always possible to reach ancestors thanks to the
24 SD_taks_get_parents function (even after the end of the simulation.)
25 * Change the level of some logs in sd_global from INFO to VERB. The
26 corresponding tests are now less verbose
27 * Change the return type of SD_Simulate from (SD_task_t*) into
28 xbt_dynar_t. This function was in handling a dynar internally and
29 converted it into a NULL terminated array for historical reasons.
30 * Rename the SD_READY (all dependencies are satisfied and task is
31 scheduled) state in SD_RUNNABLE and define a new SD_SCHEDULABLE (all
32 dependencies are satisfied) state.
33 This prevents a confusion between the notion of "ready to schedule"
34 (SD_SCHEDULABLE) used in DAG scheduling and that of "ready to be
35 simulated" (SD_RUNNABLE) used by the simulation kernel.
36 * Add an example that scheduling a DAX on an heterogeneous platform
37 using a Min-Min strategy
38 * new function SD_dotload(char*) to load a DAG described in dot
39 format. This loader and the corresponding examples require the
40 installation of the graphviz library.
43 * Change the underlying waiting queue in semaphores so that a process
44 can wait on several of them simultaneously (as in waitany).
45 * Fix the way to handle tokens in semaphores so that all access patterns
46 work: {acquire, acquire_timeout, waitany} / {release, release_forever}.
49 * New data container: setset (set of sets of elements)
50 * New module: mmalloc (mapped malloc)
51 * New function: xbt_dict_cursor_set_data()
52 * New function: xbt_dynar_sort()
53 * New function: xbt_dynar_is_empty()
54 * New function: xbt_fifo_get_last_item()
55 * Bug fix in xbt_dynar_shrink(): use the right element size
56 * Use library init/fini functions for our initialization.
57 - you can use logs and other feature as soon as you want in your
58 code (even before the xbt_init / MSG_init)
59 - xbt_exit is now a no-op and produce a warning when used.
62 * New function: gras_msgtype_get_name()
64 Build chain: bug fixes and further polishing
65 * Fix the 'make install' target.
66 No need to use 'make install-simgrid' anymore
67 * Introduce a 'make dist' target compiling a *source* archive
68 'make package' compiles a binary archive (not well tested)
69 * Compile java files only on need
73 - tracing API for MSG changes: TRACE_start has no
74 longer parameters, the trace file is supplied through
75 an option passed to simulator. Categories declaration
76 and utilization remain the same. The following options
78 --cfg=tracing/filename:msg.trace
79 --cfg=tracing/platform:1 (categorized resource use)
80 --cfg=tracing/msg/task:1 (task creation)
81 --cfg=tracing/msg/process:1 (process creation, migration)
82 --cfg=tracing/msg/volume:1 (volume of msg send/recv)
83 --cfg=tracing/smpi:1 (smpi interface tracing)
84 - examples of examples/msg/tracing updated
86 * Tracing the MPI interface implemented by SMPI
87 - Collective operations are traced with states
88 - Point-to-Point operations are traced with states/links
89 - Tracing activated by a parameter "-trace filename" passed
90 to smpirun during execution (considering that simgrid
91 is compiled with tracing enabled)
92 - To run the simulation with gdb, the simulator
93 accepts --cfg=tracing/smpi:1 to trace SMPI
94 - tesh files to check if smpi tracing is ok
96 * GTNetS tracing re-worked
97 - adaptation to the tracing system of GTNets to cope
98 with modifications regarding the fullduplex mode
99 - new tesh files to check if gtnets tracing is ok
101 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
103 SimGrid (3.4.1) stable; urgency=low
105 The "Polishing easter eggs is probably a good idea" release.
106 This is a bug fixes release only.
110 * Fix a bug preventing the tasks from begin garbage collected.
113 * Fix a bug occuring when a host involved in a communication fails.
114 This was not detected properly by the other peer involved in the
115 communication. Now, it's reported as a network error.
118 * Warn the user about loop dependencies in data flow of DAX files
119 * Obey the control-flow dependencies of DAX files
122 * Add option "enable_smpi" allowing to not compile SMPI.
123 Probably useful for the (Mac) users experiencing a build error here
124 * Improve the detection of lua5.1 and ruby1.8
126 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Tus, 04 May 2010 28 16:11:16 +0100
128 SimGrid (3.4) stable; urgency=low
130 The "Easter in Cargese" release. Also known as (major changes):
132 * the "se habla Java, Ruby 話せます, fala-se Lua (and deaf-friendly)"
133 ~> bindings were greatly improved
134 ~> new tracing infrastructure for better visualization introduced
136 * the "Welcome to configury modernity" release.
137 ~> we switched from autotools to cmake, and improved our cdash
140 A more detailled list of changes follow (full detail in svn log).
142 Java Bindings: Various Cleanups
143 * (install java-gcj-compat-dev on debian-like to use them)
144 * Remove put/get: no need to export deprecated interface in Java
145 Use send/receive instead.
146 * Cleanup the examples and add a README per directory
147 * Remove example autoDestination (that's the only way to go now)
148 * Remove example explicitDestination (was a plain copy of basic)
149 * Make JniException a runtime exception, so that there is no need to
150 declare the fact that you may encounter such a beast. I guess that
151 nobody will ever want to survive such error.
152 * Create specific errors for each MSG case of failure:
153 host failure, transfer failure, timeout, task cancelled
154 * Cleanup the exceptions that may get thrown by each function
155 * Other internal cleanups in Java bindings. Performance still bad :/
156 Ruby and Lua Bindings: create them
157 * (install ruby1.8-dev/liblua5.1-0-dev on debian-like to use them)
158 * That's new and great, you should try them out.
159 Same functionalities than Java bindings, only even less polished
161 * Kill the useless "rate" argument of SD_task_get_execution_time()
162 Everyone used to provide -1 as a value, it was not used, and the
163 semantic of a possible use wasn't even clear.
164 * SD_SCHED_NO_COST: Constant to use as cost in SD_task_schedule()
165 either as comm costs or compute costs to mean that there is no
166 such thing for that specific task.
167 * Add a SD_task_set_name() function
168 * Fix SD_task_unschedule() on typed tasks
169 * Fix SD_task_get_execution_time() to return seconds, not flop*sec
170 * In DAX loader, accept useless 'level' attributes to <job> since
171 LIGO DAGs have them (seem to be to ease graphical representation).
173 * Add an example masterslave_mailbox.c using send/receive and not
174 the deprecated put/get interface.
175 * Kill the MSG_paje_output() function. It's a noop since 2 years.
176 * Kill MSG_WARNING and MSG_FATAL return codes: they were not used
178 * Rename MSG_TIMEOUT_FAILURE into MSG_TIMEOUT for sake of logic
179 (declare MSG_USE_DEPRECATED to still have the old name)
180 * Add a MSG_task_set_data() function
181 * About trace replay (see examples/msg/actions):
183 - Allow to work with splitted trace files for each process
184 Give the specific trace file as argument of each process,
185 and call MSG_action_trace_run(NULL)
186 You can still have one merged file for all processes.
187 - Fix implementation of collective operations
188 * Allow task_execute() on 0-sized tasks (closes #10063)
190 * This is the first release of SimGrid where SMPI is not considered
191 beta anymore (even if some corners should still be improved)
192 * Port over the new SIMIX_network submodule (internal refactoring)
193 * Basic support to log events as with SMPE (use --cfg=SMPE:1)
194 * Implement more missing elements of the standard:
196 - MPI_MAXLOC MPI_MINLOC + all associated datatype MPI_DOUBLE_INT,
198 - MPI_Address() MPI_Get_count() MPI_Type_free() MPI_Type_extent()
199 MPI_Scan() MPI_Get_processor_name()
200 - Added implementation of missing case for Alltoall (warning: it's
201 *not* the bruck variant from OpenMPI; based on Alltoallv instead)
202 - SMPI_MPI_Gather() SMPI_MPI_Gatherv() SMPI_MPI_Scatterv()
203 SMPI_MPI_Reduce_scatter() SMPI_MPI_Allgather()
204 SMPI_MPI_Allgatherv()
206 - MPI_Waitsome() was broken
207 - Allow relative includes in smpicc
208 - Command line cfg argument 'reference_speed' was ignored...
209 - Some functions did not properly lead to auto-benching of user code
210 - smpicc passes -O2 by default (just like openmpi one)
212 * add SIMIX_action_suspend() and SIMIX_action_resume() functions
213 * Bug fixes about timeouts during communications
214 * add SIMIX_message_sizes_output() as a pimple to write to file the
215 amount of messages per size. Use gnuplot to get histogram.
216 Pimple because that's the only user-visible function of simix,
217 defined directly in xbt.h (irk, sorry)
219 - Add a SIMIX_sem_get_capacity() function
220 - Fix interactions with processe resume/suspende
221 - release_forever() was stupidly broken
222 - Fix SIMIX_display_process_status() for processes in a semaphore
223 - Make SIMIX_sem_block_onto() user-visible
224 * Refactoring context stuff:
225 - Use pseudo-OOP for better modularity
226 - reimplement SIMIX_process_kill() without process_schedule() so
227 that the latter can take as invariant that it is called from
229 - Merge context_start into context_new for sake of simplicity
231 * Add a Vivaldi network model, coded live during SUD'10 ;)
232 * Rename configuration variables to start a hierarchy:
233 o cpu_model -> cpu/model
234 o network_model -> network/model
235 o workstation_model -> workstation/model
236 * New configuration variables:
237 o network/bandwidth_factor: correction to bandwith
238 o network/latency_factor: correction to latency
239 o netwotk/weight_S: correction to the weight of competing streams
240 * Add a long description to the models, that users can see with such
241 argument on the command line: --cfg=cpu/model:help
242 * --help-models display the long description of all known models
244 * config: add the ability to set a default value after registration
245 Does not override any previously set value (e.g. from cmd line)
246 * dict: allow to have integer key and data.
247 When so, you need to use the following functions
248 void xbt_dicti_set(xbt_dict_t dict, uintptr_t key, uintptr_t data);
249 uintptr_t xbt_dicti_get(xbt_dict_t dict, uintptr_t key);
250 void xbt_dicti_remove(xbt_dict_t dict, uintptr_t key);
251 In contrary to regular dicts, the key is not malloced before copy.
252 Mixing scalar and regular elements in the same dict is not tested
254 * Allow to use xbt_dynar_shrink() to expend the dynar instead
255 Tracing for Visualization:
256 * SimGrid is now instrumented in order to generate a trace file for
257 visualization analysis: to use it, need to compile SimGrid with the
258 "tracing" option enabled, and instrument the program using SimGrid with
259 TRACE_start, TRACE_category, TRACE_msg_set_task_category and TRACE_end
260 (among other functions).
261 * The instrumentation only traces the platform utilization for now
262 * Documentation to use the tracing functions and how to analyze the
263 traces with the Triva tool is written.
264 * More information about: SimGrid FAQ (in the section Tracing Simulations
267 * We moved to cmake as default build system. Autotools support will
268 be dropped soon. Check the FAQ for more info about how to use it.
269 * Greatly improved our cdash/ctest interactions
270 Check http://cdash.inria.fr/CDash/index.php?project=Simgrid
271 * Added memory checking tests with valgrind; lot of memleak fixing.
272 This may be the first release of simgrid with so few memory issues
273 * Added code coverage tests.
274 Our coverage is still improvable, but at least we see it on cdash.
276 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Wed, 28 Apr 2010 28 17:11:16 +0100
278 SimGrid (3.3.4) stable; urgency=low
280 The "Desktop Grid needs love too" release (also called Xmas release).
283 * Major speedup in the maxmin system solving by using lazy evaluation
284 Instead of solving completely the maxmin system at each iteration,
285 only invalidate (and recompute) the modified parts.
286 This new feature is enabled in default models but you can try to
287 turn it on with "--cfg:maxmin-selective-update=1" for other models.
288 * Cas01 IMproved as default CPU model
289 This CPU model is the same Cas01 model, but it uses the
290 maxmin-selective-update flag and a heap structure to manage
291 actions on SURF kernel.
292 It reduces the complexity to find the next action to finish and,
293 consequently, it's faster than the old Cas01.
294 This is the new default CPU model (Cas01).
295 * Rename the old Cas01 model to Cas01_fullupdate
296 Keep the old cpu model Cas01 with the new name of Cas01_fullupdate.
297 Use "--cfg=cpu_model:Cas01_fullupdate" to use the old default CPU model.
298 * CpuTI (CPU Trace Integration)
299 A new CPU model whose objective is simulate faster when using
300 availability trace files.
301 Instead of using a full featured, over engineered maxmin system for
302 CPU modeling, this model does the pre-integration of traces files
303 to calculate the amount of CPU power available, and so, executes
304 faster than the old CPU models.
305 Use "--cfg=cpu_model:CpuTI" to change to this CPU model.
306 * Use LV08 as default network model since it gives better accuracy
307 for small messages and shouldn't change things for big ones.
308 Use --cfg=network_model:CM02 to get the previous behavior.
311 ******************************************
312 *DO NOT MIX 3.3.4 RESULTS WITH OLDER ONES*
313 ******************************************
314 * The new CPU model may changes simulations!
315 The point is that events occurring at the exact same timestamp
316 are not scheduled in the same order with the old and new
317 version. This may be enough to completely change the execution
318 of simulations in some cases.
319 * The new network model will change simulations!
320 This new model is more realistic than the previous one, so you
321 should consider redoing your old experiments with this model.
322 Sorry for the inconvenience.
325 * Introduce the supernovae compilation mode
326 When compiled that way, the whole SimGrid (or almost) is put in a
327 single compilation unit and compiled in one shoot.
328 This is to help gcc which has difficulties to inline stuff from one
330 The speedup seem to be above 15%, althrough more tests are needed on
331 amd64 to confirm that gain.
334 * Port of MSG's mailbox on top of SIMIX network
335 The put/get mechanism was greatly simplified on the way.
338 * New SIMIX network module. Provides:
339 - Mailbox: rendez-vous mecanism to find with who you want to speak
340 - Synchronous send/recv: easier and hopefully faster since the
341 logic is handled in the maestro process directly now
342 - Asynchronous send/recv: you dreamt of it? It's here now
343 Too bad that nobody cared enough to propagate the change to MSG.
344 * Add semaphores as SIMIX synchronization mechanism.
347 * new function SD_daxload(char*) to load a DAX file
348 (see http://vtcpc.isi.edu/pegasus/index.php/WorkflowGenerator)
349 * Introduce typed tasks. Specify its kind and cost at creation.
350 At scheduling, just give where it should be placed, and the cost
351 for each involved resource is automatically computed.
352 Existing constructors so far (more to come of course):
353 - SD_task_create_comm_e2e() for end-to-end communication
354 - SD_task_create_comp_seq() for sequential computation
355 Use SD_task_schedulev() / SD_task_schedulel() to schedule them.
356 * new function SD_task_dump() for debuging display
357 * new function SD_task_dotty(task,FILE*) writing to file the info
358 about the task in dotty format
359 * SD_task_dependency_exists() can now cope with having one of its
360 arguments NULL. If so, it tests whether the other argument has any
362 * Add getters on list of preceding/following tasks:
363 SD_task_get_parents(task) and SD_task_get_children(task)
364 * Add getters on amount of workstations and list:
365 SD_task_get_workstation_count(t) and SD_task_get_workstation_list(t)
366 * Add getter on task kind: SD_task_get_kind(task)
367 * Update the start_time and finish_time of tasks on completion/failure
368 * Bugfix: Remove task from state swags when destroyed
371 * New function: void gras_cpu_burn(double flops) -- a simple CPU burner
374 * New function: xbt_dynar_dopar(dynar,fun) to map a function over the
375 dynar with one separate thread per value of the dynar.
376 * Change the prototype of xbt_thread_create(), sorry.
377 Added a boolean parameter indicating whether we want to join this
378 thread (used in SG only for now)
379 * Implement xbt_thread_join and xbt_thread_yield in SG also.
382 * GTNetS wrappers should now be usable again (and betterly tested too)
383 * Fix a major regression from 3.2 where the timeout provided to
384 MSG_task_put_with_timeout() was used as absolute time before which
385 the comm should be done.
386 * Start to fix the <cluster> tag.
387 - Internal links should be good now (beside of the loopback, which
388 use the private link instead)
389 - paths to the external world is still rather broken
390 - the <route:multi> tag is just broken. Actually that's brain-dead.
391 We need sth like <route:multi src="myCluster" dst="$*-${myCluster}">
392 to make it less stupid
393 ** Check your platform with teshsuite/simdag/platforms/flatifier **
394 * Fix a source-level compatibility glitch from 3.2: after defining
395 MSG_USE_DEPRECATED, you can use the old name
396 MSG_task_put_with_time_out() for MSG_task_put_with_timeout()
397 * Allow to compile from the SVN with automake 1.11
398 * Fix some problems when using the "start_time" tag in deployment XMLs.
399 * Fix #8569: XBT/synchro.h has redundant declarations
400 * Fix #8563: MSG return values and exceptions
401 Introduce a MSG_TIMEOUT_FAILURE return code and use it consistently.
402 * Integrate patch #8636: Obey DESTDIR when installing documentation.
403 Thanks to Robson Peixoto.
404 * Fix a vicious bug in dictionaries inducing that some elements were
405 not freed on xbt_dict_free()
407 Portability report of this version:
408 * Main portability targets:
409 - linux (ubuntu (804/810/910) /debian (4/5/testing) /fedora (core11))
411 - mac leopard on i386
412 Known problems: http://cdash.inria.fr/CDash/index.php?project=Simgrid
413 but nothing critical.
414 * Other platforms: windows, AIX and others were not tested for this release
416 Timing report of this version:
417 * Lazy evaluation brings arbitrary speedup (ie, speedup depending on
418 scenario parameters). From 8h to a few seconds in desktop grid settings.
419 * Supernovae brings about 25% speedup on i386.
421 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 24 Dec 2009 19:07:39 +0100
423 SimGrid (3.3.3) stable; urgency=low
425 The "Need for Speed" release.
427 The timings done to validate the 3.3.2 were faulty.
428 Instead of being 5% faster, it was 15% slower (compared to 3.3.1).
430 The problem was a conversion from a manually handled vector to
431 xbt_dynar_t on the critical path.
432 xbt_dynar_foreach calls functions, inducing stack management crap.
434 We inlined these functions and xbt_dynar_foreach is now breath taking.
435 We also inlined xbt_swag_belong on the way.
437 Here are some approximate speedup measurements (on master/slaves
438 simulations lasting between 10s and 20s each):
439 3.3.1 -> 3.3.2: about same performance
440 3.3.2 -> 3.3.3: 40% speedup
441 3.3.1 -> 3.3.3: 40% speedup
442 3.3.1 with inline patch -> 3.3.3: 30% speedup
444 Our reading is that the refactoring which occurred in 3.3.2 made us
445 suffer much more from the xbt_dynar_foreach low performance, but
446 once we solved this, this refactoring proved to be very performance
447 effective. From the 40% speedup, somehow, 10% are due to the
448 inlining and 30% to the refactoring.
450 That's a pitty that gcc cannot inline functions placed in other files
451 alone. We have to choose between:
452 - break the encapsulation (by putting private data structures and
453 accessors in headers files to help gcc)
454 - live with low performance
455 - switch to a decent compiler such as icc (not quite possible).
457 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 20 Aug 2009 21:21:33 +0200
459 SimGrid (3.3.2) stable; urgency=low
461 The "Simplicity does not preceed complexity, but follows it" release.
463 The main contributors of this release were (lexical order):
464 Silas De Munck, Stéphane Genaud, Martin Quinson, Cristian Rosa.
467 * Extract the routing logic into its own object.
468 (was dupplicated in network.c and workstation_LV07.c;
469 Allows to implement other ways of storing that info)
470 => kill now useless network_card concept
471 - Use dynar to represent routes (instead of void** + int*)
472 - kill link_set (use surf_network_model->resource_set instead)
473 - Add a command-line option to choose the routing schema to use
474 - Add three new models:
475 * Floyd (shortest path computed at initialization)
476 * Dijikstra (shortest path recomputed all the time)
477 * Cached Dijikstra (shortest path computed on need)
478 All these models where contributed by Silas De Munck, and are
479 described in his ICCS09 paper.
481 * Simplify model declaration
482 (less redirections, less function to write when defining a model)
483 - Factorize stuff between models:
486 surf_model_resource_set(model)
487 surf_model_resource_by_name(model, name)
488 - Unify the types of models in s_surf_model_t (using an union)
489 - Embeed fields of common_public directly into s_surf_model_t
490 - Rename model methods:
491 action_free ~> action_unref
492 action_change_state ~> action_state_set
493 action_get_state ~> action_state_get
494 - Change model methods into functions :
495 (model)->common_public->action_use ~> surf_action_ref
497 * Implement a generic resource; use it as ancestor to specific ones
498 (allows to kill duplicated code in models)
499 Drawback: timer command don't need no name nor properties;
500 workstation_CLM03 don't need no properties
501 (but I guess we can live with those few bytes wasted)
503 * Improve the action object model
504 - implement a constructor avoiding dupplicated code about field
505 initialization in generic_action part.
507 * Kill the SDP model: it has an external dependency, is deprecated
508 in flavor of modern lmm models, and didn't compile since a while
511 * Relocation of the context module from XBT to SIMIX.
512 (the context were decoupled from the simix processes, duplicating a lot of code)
513 => a lot of code was factorized
514 - less overhead is introduced during scheduling
515 - simpler API for the context factory
516 - the logic for process creation,destruction and manipulation was simplified
517 * Simplification of the s_smx_process_t data structure.
518 => accesing the simix level data associated to a process is faster now,
519 and the code is a lot more readable.
522 * Implement some more MPI primitives:
523 MPI_Bcast, MPI_Waitany, MPI_Waitall, MPI_Reduce, MPI_Allreduce, MPI_Scatter, MPI_Sendrecv, MPI_Alltoall
524 -implementation: Bcast: flat or 2-ary tree (default),
527 Allreduce: Reduce then Bcast
528 Alltoall: "basic_linear" if data per proc < 3Kb, "otherwise pairwise".
529 Not yet implemented: "Bruck" for data per proc < 200b and comm size > 12
530 Alltoallv: flat tree, like ompi
532 * Add support for optimized collectives (Bcast is now binomial by default)
533 * Port smpirun and smpicc to OS X
536 * Kill SD_link_get_properties: hard to maintain and makes very little sense
537 Shout out if you used it.
540 * Display the list of still queued messages in SG mode when existing
544 * Add xbt_set_get_by_name_or_null() [Silas De Munck]
545 * Add xbt_graph_node_get_outedges() [Silas De Munck]
546 * Add xbt_str_from_file(FILE*)
547 * Add xbt_dict_get_key achieving a linear reverse search
548 * Remove the context module
550 Portability report of this version:
551 * Main portability targets:
552 - Linux(debian)/x86/context
553 - Linux(debian)/x86/pthreads
554 - Linux(debian)/amd64/context
555 - Linux(debian)/amd64/pthreads
556 On these, we still have the eratic breakages of gras/pmm and
557 amok/saturate_sg reported in previous version. We still think
558 that the tests are the cause of the fault, not the tested code.
560 - Mac OSX Leopard/x86/context
561 Still false negative in tesh autotesting.
562 Smpi still fails, but this time because readlink does not accept -f
563 Everything seems to work properly beside of that.
566 - AIX version 5.3 (only tested contexts this time)
567 Smpi still fails there because mktemp is not installed.
568 Everything seems to work properly beside of that.
570 I managed to compile it for the first time, but several breakages.
571 Won't delay the release for this exotic platform.
573 * Windows: it's still lagging behind. If you want to help, please
576 Timing report of this version:
577 This version seem to be more than 5% faster than 3.3.1 (on linux
578 64bits with contextes). The gain is less than expected, we are
579 investigating this for next release.
581 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Wed, 19 Aug 2009 17:07:12 +0200
583 SimGrid (3.3.1) stable; urgency=low
586 * Implement a --cfg-help to show existing configuration variables
587 * Build chain do not require doxygen in maintainer mode
590 * fix a bug on struct sizeof computation, which prevented the
591 exchange of arrays of structs in some conditions
592 - added a regression test about this in datadesc_usage
593 * Allow the exchange of 0-long dynamic vectors.
594 - for that, use -1 as indicator of dynamic size instead of 0
595 - This implied to change any size from unsigned long to long,
596 reducing a bit communication abilities, but I guess that with
597 64bits being quite common, this is more than enough.
598 - This also induce a protocol change, thus bumping network protocol
599 version from 0 to 1 (if we have external users, we have to get
600 clean on that point too ;)
601 - added two regression tests about this in datadesc_usage
602 * Be more verbose when propagating local exceptions
603 This helps debugging.
604 * Display the status of simulated processes when receiving SIGINT in
608 * Allow to control the simulation from a trace file.
609 New functions MSG_action_register() and MSG_action_trace_run()
610 The first one allows to associate a function execution to each
611 kind of action while the second one parses a trace file and
612 triggers the corresponding actions within the system.
613 For now, only a toy example is provided in examples/msg/actions
614 * Add an exemple of process migration in examples/msg/migration
615 * Fix a bug in task exchange which broke MSG_task_get_sender()
616 Add a teshsuite regression test for that.
617 [Bug: if MSG_task_get_sender() is called after sender exit,
619 * Fix a bug which prevented suspend/resume to work properly
620 * Display the status of simulated processes when receiving SIGINT
621 This fixes a regression of v3.3. due to the introduction of SIMIX
622 * Bug fixing in failure management:
623 - trace could not start by a failure at time 0
624 - failure during communications were not working
627 * Add SIMIX_process_set_name() to change the name of the current
628 process in the log messages.
629 * Store smx_hosts in a dict since we only retrieve them by name
630 * Move the configuration infrastructure to surf
633 * Move the configuration infrastructure to surf
636 * Massive internal cleanups:
637 - Store internal structures on processes instead of hosts (allows
638 to have more than one process per host, in addition of being more
640 - Cleanup the initialization/finalization process
641 - Kill a whole bunch of unneeded synchronization:
642 processes run in exclusive manner within the simulator
643 - Move queues from global tables to process data fields
645 - now accept -platform and -hostfile arguments
646 - Pass the right rank value to processes according to the hostfile
647 * Compile the examples by default, and use them as regression tests
648 * Implement MPI_Wtime()
649 * Change the reference speed to a command line option
652 * TCP_gamma can now be specified as command line option using
653 --cfg=TCP_gamma:10000000.0
654 * Change the --surf-path cmd line option into --cfg=path:
657 * Also include strbuff from xbt.h public header
658 * xbt_ex_display(): do not free the exception after displaying
659 This allows to do more with the given exception afterward.
660 Users should call xbt_ex_free() themselves.
664 Portability report of this version:
665 * Main portability targets:
666 - Linux(debian)/x86/context
667 - Linux(debian)/x86/pthreads
668 - Linux(debian)/amd64/context
669 - Linux(debian)/amd64/pthreads
670 These targets fail about 1/10 of times on gras/pmm, but we believe
671 that this is because of the test, not because of simgrid.
672 amok/saturate_sg fails even more rarely, and the test may not be
675 - Mac OSX Leopard/x86/context
676 The test suite still spits tons of errors because some obscure
677 force prevents us from removing the temporary directories
678 arguing that they still contain some metadata I've never heard of.
679 Smpi fails because seq is not installed.
680 Everything seems to work properly beside of that.
683 - AIX version 5.3 (both contexts and pthread)
684 Smpi still fails there because mktemp is not installed.
685 XML inclusions seems rosty on AIX.
687 * Windows: it's still lagging behind. If you want to help, please
690 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sat, 27 Jun 2009 00:14:30 +0200
692 SimGrid (3.3) stable; urgency=high
696 * JAVA BINDINGS for MSG (you dreamt of them? We made them)
699 * Introduce the SIMIX module: factorize code between MSG and GRAS.
702 Until now, GRAS were using MSG as an interface to SURF. It was
703 quite difficult because both interface have several differences
704 (MSG channels vs GRAS sockets were the most notable point).
706 This also opens the gate to SMPI (which should occur soon) and speed
707 up simulations by to 40% (even if it were not the main goal).
709 **************************************
710 *DO NOT MIX 3.2 RESULTS WITH 3.3 ONES* Simix may changes simulations!
711 **************************************
712 The point is that events occuring at the exact same timestamp are
713 not scheduled in the same order with the old and new version. This
714 may be enough to completely change the execution of simulations in
715 some cases. Sorry for the inconvenience.
717 * Cleanup and upgrade the XML format to push further scalability
718 issues (check http://hal.inria.fr/inria-00256883/ for more info)
720 * Improve the testing infrastructure with tesh. Now a very large part of
721 the code is tested not only by being run but also by checking that the
722 output match an expected output [Mt].
724 * Move on to FleXML v1.7 for the embeeded XML parsers. This version
725 is really less memory-demanding, which should allow you to use
726 larger files in SimGrid [AL].
728 * Inform valgrind about our contextes, so that it becomes usable
729 with the default (and more effecient) version of SimGrid
730 [contributed by Sékou Diakite, many thanks]
733 * Introduce a listener thread in charge of receiving incomming
734 messages from the network. It allows to overlap communication and
735 computation but most notably, it removes some stupid deadlocks due
736 to the fact that so far, a process could not send and receive at
737 the same time. This made most non trivial communication schema
739 * Convert the PIDs from long int to int to match the MSG ones (and
741 * New function: gras_agent_spawn() to launch a new process on
742 current host. Only working in simulation for now. [Mt]
743 * New function: gras_os_hostport() returning a constant form (ie,
744 not needing to be freed) of "gras_os_hostname():gras_os_myport()"
747 * Make the backtrace of exceptions more human readable [Mt]
748 * New module: xbt/str [Mt]
749 a ton of string utility functions (split, join, printf to a newly
750 allocated buffer, trim, etc)
751 * New module: xbt/hash [Mt]
752 SHA1 hashing algorithm (more to come if needed)
753 * New module: xbt/synchro [Mt]
754 synchronization tools (mutex and conditions) working the same way
755 in simulation and in real life (mainly useful for GRAS, but not
757 * New module: xbt/queue [Mt]
758 classical producer/consumer synchronization scheme
759 * xbt_dynar_new_sync() creates a synchronized dynar. All access
760 (using the classical functions will get serialized) [Mt]
761 * Make dictionary internal table dynamic. No need to specify its size
762 anymore; functions xbt_dict_new_ext() and xbt_dict_hashsize_set()
764 * Make sure the log channels are organized as a tree under windows
765 (because of ANSI C compatibility issue, any channel were child of
769 * Cleaned many thing in surf and fixed a few bugs [AL].
770 * Add a nice command line configuration mechanism to compose models [AL].
771 * Add a new model for parallel tasks (ptask_L07) that is less buggy than
772 the previous one (KCCFLN05). It relies on something that looks like
773 a max-min sharing mechanism but cannot be written as such. A new solver
774 was thus designed [AL].
775 * Add a new solver to lmm. Based on Lagrange optimization and
776 gradient-based descent, it enables to efficiently maximise systems s.a
778 sum f_i(x_i) s.t Ax<= b with A_{i,j}>=0 and f_i a concave function.
780 This solver enables to propose two new network models for TCP Reno and
781 TCP Vegas based on Low's work. These models still need to be fully
782 tested though [Pedro Velho].
785 * Bug fix in SD_simulate. Now the time bound given as argument is
787 * Use the new parallel task model (ptask_L07) as default.
788 * Use the SURF command line configuration mechanism.
789 * 0-size tasks (for synchronization) should now work.
791 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Sun Apr 12 05:20:36 CEST 2009
793 SimGrid (3.2) stable; urgency=high
797 We still experience issues on this platform, but we believe that at
800 GRAS API BREAKAGE (for simplification purpose, sorry):
801 * the gras_msgtype_by_name is not used anymore. Instead of
802 gras_msg_send(toserver, gras_msgtype_by_name("request"), &request);
803 you can write (and must)
804 gras_msg_send(toserver, "request", &request);
805 - If you still want to pass a gras_msgtype_t to the function (to cache
806 the type and avoid the lookup time), use the gras_msg_send_() variant.
807 - Impacted functions:
808 gras_cb_register, gras_cb_unregister, gras_msg_send, gras_msg_wait,
809 gras_msg_rpccall, gras_msg_rpc_async_call, gras_msg_wait_ext
810 * The callbacks are now expected to return 0 when everything went well
811 (just like the main() function)
813 GRAS new features and improvements:
814 * New module mecanism where user code can use per process globals [Mt]
815 This is similar to gras_userdata_*() functions, but for libraries. It
816 factorize some code developped over and over in the examples and AMOK.
817 It has still to be documented and used (only amok/peermanagement is
819 * Fix a vicious bug in the TCP buffering mecanism which leaded to message
820 loss when they were small enough to fit into the buffer and sent quickly
821 enough so that they can all get received in one shoot.
822 * gras_datadesc_by_name and gras_msgtype_by_name: now raise an exception
823 if not found. Use the *_or_null() variant for the old semantic.
824 * In gras_msg_handle, do not discard messages without callback.
825 They are probably messages to be explicitly awaited later (ie, proofs of
826 mis-synchronization in userland since they are sent before being awaited)
828 * gras_socket_meas_send/recv: semantic changed!
829 The numerical arguments used to be (1) the total amount of data to send
830 and (2) msg_size. This was changed to (1) msg_size and (2) amount of
831 messages. This was need for the fool willing to send more than MAXINT
832 bytes on quite fat pipes.
835 * Do really rename the hostmanagement module to peermanagement. [Mt]
836 Ie, rename functions from amok_hm_* to amok_pm_*. This breaks the API,
837 but this is rather new and this was documented in the module
838 documentation (poor excuses, I admit)
839 * Bandwidth measurement semantic changed! This follows the changes to
840 gras_socket_meas_send/recv explained above.
843 * A sequential mode has been added to the workstations. When a workstation
844 is in sequential mode, it can execute only one task, and the other tasks
845 are waiting in a FIFO. [Christophe Thiery]
848 * The KCCFLN05 workstation model now handles parallel tasks. It is the
849 model for SIMDAG. [Christophe Thiery]
850 * Bug fix in the maxmin solver: Some values were close to 0 instead of
851 equal to 0, which caused some bad behaviors in
852 saturated_constraint_set_update. I now use a threshold mechanism like in
856 * When running manually src/testall, you select specific units [Mt]
857 testall is the result of our cunit mecanism, and should replace all
858 the scripty thingy around since bash don't run easily on billware.
860 * A mallocator system has been added. [Christophe Thiery]
861 Mallocators allow you to recycle your unused objects instead of freeing them
862 and allocating new ones.
864 Documentation update:
865 * FAQ reworking + New FAQs:
866 - "Valgrind spits tons of errors!" [Mt]
867 - "How to repport bugs" [Mt]
868 - "Cross-compiling a Windows DLL of SimGrid from Linux" [Mt]
869 - "What is the difference between MSG, SimDag, and GRAS?" [Mt]
870 - Communication time measurement within MSG [AL]
871 - I experience weird communication times when I change the latency [AL]
874 - an introduction to the framework and to the used communication model
875 - an initiatic tour introducing the most proheminent features:
877 . Lesson 0: Installing GRAS
878 . Lesson 1: Setting up your own project
879 o Part 2: Message passing
880 . Lesson 2: Exchanging simple messages
881 . Lesson 3: Passing arguments to the processes (in SG)
882 . Lesson 4: Attaching callbacks to messages
883 . Lesson 5: Using globals in processes
884 . Lesson 6: Logging informations properly
885 . Lesson 7: Using internal timers
886 . Lesson 8: Handling errors through exceptions
887 . Lesson 9: Exchanging simple data
888 . Lesson 10: Remote Procedure Calling (RPC)
889 . Lesson 11: Explicitely waiting for messages
890 . Recapping of message passing features in GRAS
891 - A HOWTO section containing:
892 o HOWTO design a GRAS application
893 More are due, of course. They will come latter. In the meanwhile, you can
894 check the examples which are still here.
896 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri Mar 16 21:11:46 CET 2007
898 SimGrid (3.1) stable; urgency=high
902 There was a stack corruption somewhere, visible only when optimizing
903 with these versions. [Vince]
906 * This is a NEW module! SimDAG (SD for short) is a revival of the old SG
907 module that enabled to play with Directed Acyclic Graphs. It is built
908 directly on top of SURF and provides an API rather close to the old
909 SG. Some old codes using SG are currently under rewrite to check that
910 all needful functions are provided. [Christophe Thiery]
913 * Complete rewrite of the KCCFLN05 workstation model. It is now an
914 extension of the classical CLM03 model that gracefully handles
915 failures. This is now the default model for MSG and GRAS. It doesn't
916 handle parallel tasks yet though. [AL]
917 * Bug fix: Weights were not correctly set in the network part.
918 WARNING: This may have resulted in incorrect results with simulations
919 where there are more than one flow on a given link. [AL]
922 * After a (long ?) discussion on simgrid-devel, we have decided that the
923 convention we had on units was stupid. That is why it has been decided
924 to move from (MBits, MFlops, seconds) to (Bits, Flops, seconds).
925 WARNING : This means that all previous platform files will not work as
926 such with this version! A warning is issued to ask users to update
928 A conversion script can be found in the contrib module of the CVS, under
929 the name contrib/platform_generation/surfxml_update.pl [MQ]
932 * Bug fix: Processes were started in reverse order, wrt deployment file.
933 WARNING: if your code relies on this bug, please fix it. [AL]
934 * Bug fix: Add a test in MSG_task_execute to stop whenever a task is
935 being executed on two different locations. [AL]
936 * Bug fix: Failures are now better supported thanks to Derrick's tests
937 (there was many failure situations I hadn't thought of and that weren't
938 correctly handled). [AL]
939 * New function: MSG_host_is_avail indicates you whether a given m_host_t
943 * New! a real RPC mecanism, as it ought to be since too long. [MQ]
944 Exception occurring on server-side are propagated back to client (!).
946 API CHANGE: the callback changed their prototype. Change:
947 int my_handler(gras_socket_t expeditor, void *payload_data) {
949 int my_handler(gras_msg_cb_ctx_t ctx , void *payload_data) {
950 gras_socket_t expeditor=gras_msg_cb_ctx_from(ctx);
952 * New! function: gras_msg_handleall to deal with all messages arriving
953 within a given period.
954 * New! function: gras_socket_server_range to get a server socket in a
955 range of port numbers (ease to avoid port number conflicts) [MQ]
956 * New! gras processes display their backtrace when they get a SIGUSR1
957 or when Ctrl-C is pressed. Use Ctrl-C Ctrl-C to exit.
958 Sweet to debug RL processes [MQ]
962 - Do not force experiment sizes to be expressed in kb, or it becomes
963 impossible to measure the latency this way (needs one byte-long tests)
964 WARNING: this changes the amok_bw_* function semantic. [MQ]
965 - Implements the link saturation stuff. [MQ]
966 * Peer management module:
967 New! module factorizing code that we wrote over and over [MQ].
970 * New module: cunit (my jUnit implementation in ansi C) [MQ]
971 - Test units are placed directly into the library code, they get extracted
972 automatically and placed into the src/testall binary.
973 - Convert most of the XBT tests to this system.
974 * New functions: xbt_dynar_getfirst_as() and xbt_dynar_getlast_as() [MQ]
975 * XML parsing: rewrote parts of flexml to enable multiple xml parsers to
976 live in the same C code. This required to change a little bit the API
977 of surfxml parsing but shouldn't be an issue for end-users. [AL]
978 * New module: sparse graph structure with basic algorithms (this is work
979 in progress and the API is not considered to be frozen yet). [AL]
980 * Display more information on backtraces: source line & function names are
981 now displayed just like valgrind does (rely on addr2line tool) [MQ]
982 * New function: xbt_backtrace_display(). Sweet while debuging [MQ]
983 * Reworked a little bit some #include statements to load only required
984 headers. Some user code that relied on SimGrid to include stdlib or
985 stdio may need to include it by themselves. [AL]
986 * Fixed xbt/log.h. A missing SG_BEGIN_DECL prevented compilation with
988 * Renamed xbt_host_t into xbt_peer_t since it betterly describes what I
989 meant. This breaks the API of AMOK and of xbt/config. Sorry about this,
990 but I guess that almost nobody used those parts. [MQ]
992 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 14 Jul 2006 01:32:27 +0200
994 SimGrid (3.0.1) stable; urgency=low
997 * Unfortunately, I had missed 5 misnamed functions:
998 xbt_fifo_item_t xbt_fifo_newitem(void);
999 void xbt_fifo_freeitem(xbt_fifo_item_t);
1000 xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l);
1001 xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i);
1002 xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i);
1003 They're now deprecated. Please use their new versions:
1004 xbt_fifo_item_t xbt_fifo_new_item(void);
1005 void xbt_fifo_free_item(xbt_fifo_item_t);
1006 xbt_fifo_item_t xbt_fifo_get_first_item(xbt_fifo_t l);
1007 xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i);
1008 xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i);
1010 * Bugfix: really disconnect fifo items which are remove_item()ed [AL]
1011 * Documentation: xbt_log module unmercifully reworked [MQ]
1012 * Bugfix: there was a problem with the ending of contexts with
1013 the pthread backend. It caused some weird deadlock or behavior
1014 depending on the pthread implementation. [AL]
1015 * Bugfix: get the exceptions raised in the simulator repport where
1016 and why they come from when they are not catched in time [AL, MQ]
1019 * Bugfix: Do repport the error when two non-connected hosts try to
1020 exchange data (Thanks to Flavien for stumbling into this one) [AL]
1023 * Add additionnal checkings on communications. Assert that two
1024 communicating hosts are connected by a set of links... [AL]
1027 * Add additionnal checkings on channel values in communication [AL]
1028 * New: MSG_task_get_source to see on which host a task was generated [HC]
1029 * New: int MSG_task_probe_from_host(int channel, m_host_t host): returns
1030 the number of tasks waiting to be received on channel and sent
1032 * New: MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel, m_host_t host);
1033 waits for the first task coming from a given host.. [AL]
1035 GRAS new functionnalities: [MQ]
1036 * Enhance the parsing macro to allow the size of multidimentional objects
1037 to be given thru annotations.
1038 * New example (and documentation): Matrix Multiplication a la RPC
1039 (as when I was young!) and fix a bunch of bugs found on the way.
1041 GRAS performance improvements: [MQ]
1043 * Reduce the amount of cbps creation/destruction by making it static to
1044 datadesc_send/recv() and using a (newly created) cbps_reset (based on
1047 * Change libdata to a set so that we can search for stuff by ID (and thus
1048 reduce the insane amount of dict lookups)
1051 * Actually implement gras_datadesc_copy() so that we don't have to mimick
1052 RL communication on top of SG since it's so uneffective.
1053 It may also be used for inter-thread communication in RL, one day.
1054 * Use gras_datadesc_copy() to exchange messages on top of SG
1056 - improve message exchange performance on top of SG
1057 - deprecate transport_plugin_sg.c:gras_trp_sg_chunk_send() & recv()
1058 * Don't exchange on the network the size of the used part of buffer,
1059 instead, specify the possible buffer size to read().
1061 - reduces the amount of read/write calls (one pair per exchange)
1062 - reduces the amount of exchanged data (the size)
1063 - allows to retrieve all arrived data on receiver side, if we don't need
1064 it right now (subsequent read will peek the buffer)
1065 - allows the receiver to proceed with the begining of the stream before
1066 everything is arrived
1067 - make it possible to build an iov transport (using readv/writev)
1069 - take care of the data with non-stable storage (like stacked data),
1071 * If possible, TCP send uses vector I/O (when writev() is here)
1072 - Don't use it for receive since we send data sizes and data on the
1073 same stream, so we wouldn't be able to chain large amount of chunks
1074 before having to flush the stuff to read the size.
1075 * Rework the transport plugin mecanism to simplify it and reduce the
1076 amount of pointer dereferencement when searching for the right function
1079 * I guess that now, we do almost as few system calls as possible while
1080 doing as few data copy as possible.
1082 To improve it further, we could try to send all the sizes first and then
1083 all the data (to use iov on receiving size), but it's only a partial
1084 solution: when you have 2 dimensional data, the sizes of the second
1085 dimension is data of the first dimension, so you need 3 streams.
1087 I'm not sure the potential performance gains justify the coding burden.
1089 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 21 Oct 2005 14:42:20 +0200
1091 SimGrid (3.00) stable; urgency=high
1094 * New! Give the possibility to hijack the surf parser and thus bypass
1095 MSG_create_environment and MSG_launch_application. Have a look at
1096 examples/msg/msg_test_surfxml_bypassed.c to see how it can be done.
1098 -- Arnaud Legrand <simgrid-devel@lists.gforge.inria.fr> Sat, 20 Aug 2005 23:25:25 -0700
1100 SimGrid (2.96) unstable; urgency=low
1105 * New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
1106 This deprecates the xbt_error_t mecanisms.
1107 It modifies (simplifies) all XBT and GRAS API.
1108 MSG API keeps unchanged (exceptions raised by XBT are catched from
1109 within MSG and masked with existing error handling facilities)
1112 * New! Add a FATPIPE model. [AL]
1113 * New! Add a parallel task model. [AL]
1114 * New! Add automatically a loopback interface (in the default
1115 network model) if none was precised.
1118 * Bugfix: MSG_process_resume now works with the current running process.
1120 * New! Add MSG_parallel_task_create and MSG_parallel_task_execute. [AL]
1121 * Modification of MSG_task_get_compute_duration. Once a task has been
1122 processed, the value returned by this function is now equal to 0. [AL]
1123 * New! Add double MSG_task_get_remaining_computation(m_task_t task) and
1124 MSG_error_t MSG_task_cancel(m_task_t task). Add a state
1125 (MSG_TASK_CANCELLED) to MSG_error_t corresponding to the cancelation
1126 of a m_task. For now, MSG_task_cancel only works with computation
1128 * New! Add double MSG_get_host_speed(m_host_t h) that returns the speed
1129 of the processor (in Mflop/s) regardless of the current load on the
1131 * API Change: use proper naming convention for MSG_getClock and
1132 MSG_process_isSuspended: MSG_get_clock and MSG_process_is_suspended.
1134 * New! Add void MSG_task_set_priority(m_task_t task, double priority).
1135 This function changes the priority of a computation task. This priority
1136 doesn't affect the transfer rate. A priority of 2 will make a task
1137 receive two times more cpu power than the other ones. This function
1138 has been added to suit the needs of Nguyen The Loc and hasn't been that
1139 much tested yet. So if it fails, please report it and send me your code.
1141 * API Change: removed all functions and types that were marked "deprecated"
1142 since many months. Renamed MSG_global_init_args to MSG_global_init.
1144 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Mon, 8 Aug 2005 17:58:47 -0700
1146 SimGrid (2.95) unstable; urgency=low
1149 * Steal some nice code to GNU pth to fix context detection and usage [AL]
1150 * Cleanup in the xbt_config API; add configuration callbacks. [MQ]
1151 * Cleanup in the initialization API: the unused "defaultlog" is dead. [MQ]
1154 * Bugfix: Allow absolute paths for platform description files [MQ]
1155 * Bugfix: do free the variables after use. Leads to drastic performance
1157 * Implement max_duration (ie, timeouts) on resources [AL]
1160 * Implement MSG_config to configure MSG at runtime. xbt_cfg test on a real
1162 * Implement MSG_channel_select_from() to help GRAS now that SURF provide
1163 the needed support (timeouts) [AL]
1166 * Implement measurement sockets. You can now get the bandwidth between two
1167 hosts thanks to AMOK (see below). [MQ]
1168 * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send
1169 dynar over the network (yeah) [MQ]
1170 * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ]
1171 * simple/static token-ring example. [Alexandre Colucci and MQ]
1172 * Use MSG_channel_select_from() and remove the *slow* hack we had to put
1173 in place before [MQ]
1176 * Differentiate the types "char[22]" and "unsigned char[22]" in automatic
1177 type parsing. "short" and "long" modifiers were also ignored; other
1178 modifier (such as reference level) are still ignored. [MQ]
1179 * Embeed the buffer size within the buffer itself on SG. [MQ]
1180 That way, send() are atomic and cannot get intermixed anymore (at least
1181 the ones which are less than 100k; bigger messages still have the issue)
1182 * Array size pushed by the field, not by the field type (or each
1183 and every long int will push stuff to the cbps) [MQ]
1184 * use select() to sleep since it allows to portably sleep less than one
1187 GRAS (minor cleanups)
1188 * <project>.Makefile.local (generated from gras_stub_generator) |MQ]:
1191 * Type Callbacks now receive the gras_datadesc_type_t they work on as argument.
1192 * type category 'ignored' killed as it was never used and were difficult
1194 * whether a type can cycle or not is now a flag, leaving room for more
1195 flags (as "ignored", if we feel the need one day ;)
1196 * Rename raw sockets to measurement sockets since "raw" has another
1197 meaning in networking community.
1200 * Advanced Metacomputing Overlay Kit introduction. It is based over GRAS
1201 and offers features not belonging to GRAS but that most applications
1202 need. One day, it may be a set of plugins loadable at runtime.
1203 * New module: bandwidth
1204 bandwidth measurement between arbitrary nodes running this module. [MQ]
1206 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Thu, 30 Jun 2005 16:29:20 -0700
1208 SimGrid (2.94) unstable; urgency=low
1210 The first beta release of SimGrid 3 !
1214 * Update the main page and the FAQ. Adding references to gforge.
1217 * Add a gras_os_getpid function.
1220 * Add MSG_task_get_compute_duration() and MSG_task_get_data_size()
1221 * Extend the logs so that they also print PID, hostname, date, ... if
1223 * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE,
1224 and kill the old version which were in testsuite/
1225 * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead
1229 * Add xbt_os_time(). As the rest of xbt/portability, this is not public
1230 for users. Instead, each programming environment (GRAS, MSG,...) use it
1231 when needed to provide such a feature to users.
1232 Don't shortcut the mecanism or you will also shortcut the virtualization
1233 you need on the simulator.
1237 * Cleanups in configury with regard to compile optimization/warning flags.
1238 Also add -fno-loop-optimize to any powerpc since it's the optimization
1239 killing gcc (< 3.4.0).
1240 * Doxygen cleanups: move MSG examples, kill the second Doxygen phase
1241 needed by MSG examples complications
1242 * Borrow configury beautifications from PHP
1245 * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler
1246 warning (thanks loris for stumbling into this one).
1247 * Bugfix: stop loading private headers (gras_config.h) from the public
1251 * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user.
1252 * Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
1253 RL would imply a DNS resolver, which is *hard* to do in a portable way
1254 (and therefore delayed).
1255 * Implement a real timer mecanism and use it in timing macros. This allows
1256 to avoid rounding errors and get a 0.000005 sec precision in timing
1257 macros. While I was at it, various cleanups:
1258 - allow to declare more than one timed section per file (fix a stupid bug)
1259 - move some private declaration to the right place
1260 - merge conditional execution and timing macros into emulation module
1261 - document the module
1262 - make sure the module cleanups its mess on gras_exit
1263 * Documentation improvements:
1264 - (new) how to compile applications using GRAS
1265 - (new) emulation support (timing macros)
1267 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr> Fri, 13 May 2005 10:49:31 +0200
1269 SimGrid (2.93) unstable; urgency=low
1271 Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version)
1274 - Use Paje properly where used. Still to be sanitized properly.
1275 - Portability fix: Add an implementation of the contexts using pthread
1279 - Add xbt_procname(): returns the name of the current process.
1280 Use it to show the current process's name in all logging.
1282 - fix detection of older flex version and the reaction, since we do
1283 depend on modern ones (we use lex_destroy)
1284 - Better separation of SG and RL in the libs: remove all simulation code
1285 from libgras. As a result, this lib is now only 200k when stripped.
1286 Some of the xbt modules may also be duplicated (two sets and such) and
1287 should be cleaned/killed before SG3.
1288 - Insist on using xlC on AIX because of weird problems involving gcc there.
1289 - Cleanup the make remote stuff. This is now done by scripts
1290 tools/graspe-{master,slave} (GRAS Platform Expender). This is still
1291 mainly for our private use, but we're working on changing them to user
1294 - Bugfix: flush the socket on close only if there is some *output*.
1295 - Bugfix: flush idempotent when there's nothing to send (don't send size=0)
1297 - Add MSG_task_get_name. The task names are mainly for debugging purpose,
1300 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Fri, 4 Mar 2005 14:32:37 -0800
1302 SimGrid (2.92) unstable; urgency=low
1304 Alpha 3 on the path to SimGrid 3
1308 - New! First try of benchmarking macros.
1309 - New! First try so that gras_stub_generator generate deployment and
1310 remote compilation helpers.
1312 - Bugfix: Initialization fix in msg_test.
1316 - Bugfix: applied patch to lexer so that it doesn't need a huge heap.
1318 - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups
1320 - API Change: gras_os_sleep to take the amount of seconds as a double.
1321 Accepting an int was error prone since it was the only location where
1322 seconds were coded as such. It leaded to damn rounding errors.
1323 - Bugfix: Hard to belive that timers ever worked before this.
1325 -- SimGrid team <simgrid2-users@listes.ens-lyon.fr> Wed, 23 Feb 2005 22:09:21 +0100
1327 SimGrid (2.91) unstable; urgency=low
1329 Alpha 2 on the path to SimGrid 3
1333 - Bug fix in the lmm_solver.
1335 - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/)
1336 through the function MSG_paje_output.
1337 - New! Introducing two new functions MSG_process_kill() and MSG_process_killall().
1338 - It is possible to bound the rate of a communication in MSG with
1339 MSG_task_put_bounded() (was already in the previous version but I had forgotten
1340 to write it in the changelog).
1341 - Bug fix to let GRAS run on top of MSG until we move it directly on top
1346 - Various cleanups to the autotools stuff
1347 - Begin to move Gras examples to examples/gras/
1348 - Let make distcheck work again (yeah!)
1350 - documentation overhauled using doxygen.
1351 gtk-doc-tools is dead in SimGrid now.
1352 - Automatically extract all existing logging categories, and add the list
1353 to the documentation (long standing one, to say the less)
1355 - Cleanup the known architecture table. Reorder the entries to group what
1356 should be, and use a more consistent naming scheme.
1357 (some of the test dataset are still to be regenerated)
1358 - New! Allow library to register globals on each process just as userdata
1360 This is implemented using a xbt_dict and not a xbt_set, so we loose the
1361 lookup time (for now).
1362 Use it in msg and trp.
1363 This cleans a lot the internals and helps enforcing privacy of the
1364 headers between the gras components.
1365 - New! Add a timer mechanism, not unlike cron(8) and at(1).
1366 - Bugfix: gras_os_time was delirious in RL.
1367 - Bugfix: gras_trp_select/RL don't run into the wall when asked to select
1369 - Reenable GRAS now that it works.
1371 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 14 Feb 2005 14:02:13 -0800
1373 SimGrid (2.90) unstable; urgency=low
1375 Alpha 1 on the path to SimGrid 3
1377 * It is a long time since the last release of SimGrid. I'm sorry about
1378 that but as I had told you, I was rewriting a lot of things. I apologize
1379 to those who had been reporting bugs to me and that I had not answered.
1380 If your bug is still in the new version, please tell me. Here is a
1381 summary of the main changes.
1383 * REVOLUTION 1: The SimGrid project has merged with the GRAS project
1384 lead by Martin Quinson. As a consequence SimGrid gains a lot in
1385 portability, speed, and a lot more but you'll figure it out later.
1386 SimGrid now comprises 3 different projects : MSG, GRAS and SMPI.
1387 I wanted to release the new MSG as soon as possible and I have
1388 broken GRAS, which is the reason why, for now, only MSG is fully
1389 functional. A laconic description of these projects is available
1390 in the documentation.
1392 * REVOLUTION 2: I have removed SG and I am now using a new simulation
1393 kernel optimized for our needs (called SURF but only the developers
1394 should use it). Hence, MSG is now roughly 30 times faster and I think
1395 that by rewriting a little bit MSG, I could event speed it up a little
1396 bit more. Beside the gain in speed, it is also much easier to encode a
1397 new platform model with SURF than it was with SG. More to come...
1399 * REVOLUTION 3: I have tried to change a little as possible the API of
1400 MSG but a few things really had to disappear. The main differences
1401 with the previous version are :
1402 1) no more m_links_t and the corresponding functions. Platforms are
1403 directly read from a XML description and cannot be hard-coded
1404 anymore. The same format is used for application deployment
1405 description. The new format is described in the documentation.
1406 Have a look in tools/platform_generation. There is a tiny script
1407 that converts from the old platform format to the new one. Concerning
1408 the application deployment format, parsing the old one is tricky.
1409 I think most of you should however be able to convert your files. If
1410 it is really an issue, I can write a C code that does the conversion.
1412 2) the toolbox tbx does not exist anymore. We now have a library
1413 with much more data-structures but without the hash-tables (we have
1414 dictionaries that are much faster).
1416 -- Arnaud Legrand <Arnaud.Legrand@imag.fr> Mon, 31 Jan 2005 10:45:53 -0800
1418 *****************************************************************************
1419 * Follows the old GRAS changelog. It does not follow the same syntax, but I *
1420 * don't feel like converting the oldies. (Mt) *
1421 *****************************************************************************
1424 Version 2.90: "the long awaited one"
1425 - Finished rewriting and debugging MSG. Rewrote the documentation.
1426 - disable GRAS for now since it needs to be ported to the newest SG
1429 - Finish the port to windows (using mingw32 for cross-compile)
1432 - Main loop and datastructures of SURF. A cpu resource object is
1433 functional. Surf can thus be used to create cpu's with variable
1434 performance on which you can execute some actions.
1436 2004-11-15 Martin Quinson
1437 - Port to ARM. Simply added the alignment and size descriptions. Should
1438 work, but the ARM machines are so slow that I didn't had the opportunity
1439 to 'make check' over there yet.
1441 2004-11-15 Arnaud Legrand
1442 - Trace manager now written. It uses a heap structure and is therefore
1443 expected to be efficient. It may however be speeded up (particularly
1444 when many events occur at the same date) by using red and black
1445 trees. One day maybe...
1446 - Max-min linear system solver written. It uses a sparse matrix
1447 structure taking advantage of its expected use. Most operations are
1448 O(1) and free/calloc are called as few as possible. The computation of
1449 the minimum could however be improved by using a red and black tree
1452 2004-11-03 Arnaud Legrand
1453 - Rename every gras_* function that was in xbt/ to its xbt_
1455 - Add a heap and a doubly-linked list to xbt
1456 - Added a dichotomy to the dictionaries. make check works as well before
1457 so I assume that the patch is correct. I do not know however if things
1458 run effectively faster than before now. :)
1460 Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to
1461 SimGrid, and the version number is bumped to 2.x
1463 2004-10-29 Martin Quinson
1464 - Introduction of the remote errors.
1465 They are the result of a RMI/RPC on the remote machine.
1466 ErrCodes being scalar values, you can't get the host on which those
1467 errors did happen. Extending the error mechanism as in Gnome is possible.
1468 No idea yet whether it is a good idea.
1470 2004-10-28 Martin Quinson
1471 - Interface revolution: the Starred Structure Eradication.
1472 I used to do typedef struct {} toto_t; and then handle *toto_t.
1473 Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
1474 - ???_t is a valid type (builded with typedef)
1475 - s_toto_t is a structure (access to fields with .)
1476 - s_toto is a structure needing 'struct' keyword to be used
1477 - e_toto_t is an enum
1478 - toto_t is an 'object' (struct*)
1480 typedef struct s_toto {} s_toto_t, *toto_t;
1481 typedef enum {} e_toto_t;
1482 Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
1483 s_toto_t) is private.
1485 - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
1486 so that it can set the variable to NULL. It was so for dicts and sets,
1487 it changed for dynars.
1489 - Fix a bunch of memleaks in dict_remove
1490 - Fix a bug in sg/server_socket opening: it failed all the time.
1492 2004-10-07 Martin Quinson
1493 - Speed up dynar lookup operation a bit.
1495 gras_dynar_get is dead.
1497 Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
1498 but should be avoided for efficiency reasons) and gras_dynar_get_ptr
1499 (which gives you the address of the stored data).
1501 gras_dynar_get_as is an helpful macro which allows you to retrieve a
1502 copy of the data using an affectation to do the job and not a memcpy.
1504 int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
1505 int toto = *(int*)gras_dynar_get_ptr(dyn,0);
1507 It does not really speedup the dynar test because they are
1508 setting elements all the time (and look them seldom). But the dict does
1509 far more lookup than setting.
1511 So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
1513 2004-10-05 Martin Quinson
1514 - Allow to (en/dis)able the cycle detection at run time.
1516 Whether we should check for cycle or not is now a property of each
1517 datatype. When you think there may be some cycle, use datadesc_cycle_set.
1518 datadesc_cycle_unset allow to remove this property when previously set.
1520 Note that the cycle detection is off by default since it impacts the
1521 performance. Watch the data you feed GRAS with ;)
1523 This property is hereditary. Any element embedded in a structure having it
1524 set have it set for the time of this data exchange.
1526 You should set it both on sender and receiver side. If you don't set it on
1527 sender side, it will enter an endless loop. If you forget on receiver
1528 side, the cycles won't be recreated after communication.
1530 - Header reorganization.
1531 Kill gras_private.h, each submodule must load the headers it needs.
1533 2004-10-04 Martin Quinson
1534 - Interface revolution: do not try to survive to malloc failure.
1536 Now, gras_malloc and friends call gras_abort() on failure.
1537 As a conclusion, malloc_error is not a valid error anymore, and all
1538 functions for which it was the only gras_error_t return value are
1539 changed. They now return void, or there result directly.
1540 This simplify the API a lot.
1542 2004-09-29 Martin Quinson
1543 - Re-enable raw sockets.
1544 Created by gras_socket_{client,server}_ext;
1545 Used with gras_raw_{send,recv}
1548 It should allow to kill the last bits of gras first version soon.
1550 This is not completely satisfactory yet (duplicate code with
1551 chunk_{send,recv}; a bit out of the plugin mechanism), but it should
1554 - Simplify transport plugin (internal) interface by not passing any
1555 argument to _server and _client, but embedding them in the socket
1558 2004-09-28 Martin Quinson
1559 - Finish the port to AIX.
1560 autoconf was my problem (segfault within the malloc replacement
1561 function. No idea why)
1563 2004-09-16 Martin Quinson
1564 - Fix some size_t madness on 64bit architectures.
1566 2004-09-08 Martin Quinson
1567 - Reduce the number of system headers loaded, overload some more system
1568 calls (such as malloc to cast the result of the system one, and work
1570 - Fix and reintroduce the config support
1572 2004-09-07 Martin Quinson
1573 - Source code reorganization to allow Arnaud to surf all over there.
1574 - Allow to document the logging categories.
1575 - Remove all uppercase from logging categories and useless cleanup in names.
1577 2004-08-18 Martin Quinson
1578 Version 0.6.2 (protocol not changed; API changed)
1579 - Interface cleanup: gras_msgtype_by_name returns the type (instead of a
1580 gras_error_t), and NULL when not found. Functions expecting a msgtype
1581 as argument (msg_wait; msg_send) deal with NULL argument by providing a
1582 hopefully usefull message.
1583 - Portability to prehistoric sparcs again
1585 2004-08-17 Martin Quinson
1586 Version 0.6.1 (protocol not changed; ABI not changed)
1587 - prealloc some buffers to speed things up
1589 2004-08-11 Martin Quinson
1590 Version 0.6 (protocol not changed; ABI expended)
1591 - The parsing macro can deal with the references, provided that you add
1592 the relevant annotations (using GRAS_ANNOTE(size,field_name))
1594 2004-08-09 Martin Quinson
1595 Version 0.5 (protocol not changed; ABI changed)
1596 - Allow to off turn the cycle detection code in data exchange at
1597 compilation time. It should be at run time, but I'm short of time (and
1598 the config stuff is still broken). That way, we keep dict out of the
1599 critical path, which is good because the performance is poor:
1600 - search not dichotomial yet
1601 - dynar give no way to access their content and memcpy everytime
1602 - In composed data description (struct, ref and so on), stop foolness of
1603 keeping the subtype's ID, but store the type itself. This keeps sets out
1604 of the critical path, which is good since they rely on dynar and
1605 dictionnaries. The only loose of that is that we cannot detect the
1606 redeclaration of a structure/union with another content (but I'm not sure
1607 the code detected well this error before anyway). We still can detect
1608 the redefinition discrepancy for the other types.
1609 - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
1610 it breaks the code because of type-punning used all over the place).
1611 This breaks on all non-gcc architectures (for now).
1613 All those changes (plus the buffer of last time) allow me to gain 2 order
1614 of magnitude on cruel tests consisting of 800000 array of integers on two
1615 level of a hierarchical structure (200 secondes -> 4 secondes)
1618 - the selector of reference must now return the type it points to, not
1619 the ID of this type.
1621 2004-08-06 Martin Quinson
1622 Version 0.4 (protocol changed; ABI not changed)
1623 - Allow to pass --gras-log argument to processes in simulation mode. Really.
1624 - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT
1625 - Implement a buffer transport, and use it by default (it relies on tcp in
1626 real life and on sg in simulation).
1627 That's a bit hackish since I had a new field to the structure to store
1628 its data without interfering with the subtype ones. Inheritance
1629 is tricky in C. And that's a kind of reverse inheritance with one class
1630 derivating two classes. Or maybe a game with java interfaces. Anyway,
1631 that's damn hard in C (at least).
1632 Moreover, I got tired while trying to ensure plugin separation and
1633 genericity in SG mode. MSG wants me to do weird things, so let's go for
1634 cruel hacks (temporarily of course ;).
1635 See comment in transport_private.h:71
1636 - do not include all the _interface headers in private but in the files
1637 which really need them (to cut the compilation time when they are
1640 2004-07-26 Martin Quinson
1641 Version 0.3 (protocol not changed; ABI changed)
1642 - Major overhault of the datadesc interface to simplify it:
1643 - shorted the function names:
1644 s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on
1645 - add a trivial way to push/pop integers into the cbps without malloc.
1646 This allows to make really generic sub_type description, which simply
1647 pop their size of the stack.
1648 - add a function gras_datadesc_ref_pop_arr() which does what users want
1649 most of the time: Declare a dynamic array (which pops its size of the
1650 stack) and declare a reference to it. Poor name, but anyway.
1651 - kill the post-send callback, add a post-receive one
1653 2004-07-23 Martin Quinson
1654 Version 0.2 (protocol changed; ABI changed)
1655 - add some testing for cpbs in the test cases, and fix some more bugs.
1656 This invalidate again the little64 data file, since I cannot regenerate
1658 - remove an awfull optimization in the logging stuff, allowing me to:
1659 - understand it again
1660 - learn gcc how to check that the argument match the provided format
1661 - fix all errors revealed by gcc after that
1662 - internal keys of dict are not \0 terminated. Deal with it properly in
1663 loggings instead of segfaulting when the user want to see the logs :-/
1665 2004-07-22 Martin Quinson
1666 - Fix some stupid bug preventing cbps (callback postit) from working
1668 2004-07-21 Martin Quinson
1669 - Some documentation cleanups
1670 - remove the useless last argument of msgtype_declare
1671 - rename the Virtu functions to fit into the 'os' namespace
1672 - move headers src/include -> src/include/gras/ and stop fooling with
1673 gras -> . symbolic link
1674 - make distcheck is now successful
1676 2004-07-19 Martin Quinson
1678 - Build shared library also
1679 - Install html doc to the right location
1680 - stop removing maintainer files in make clean
1681 - build tests only on make check
1683 2004-07-13 Martin Quinson
1685 - No major issue in previous version => change versionning schema
1686 - Re-enable little64 convertion test now that Abdou kindly regenerated the
1687 corresponding dataset.
1689 2004-07-11 Martin Quinson
1691 - Get it working with any kind of structure (we can compute the padding
1692 bytes remotely for all the architectures I have access to)
1693 - Implement the structure parsing macro (still not quite robust/complete)
1694 - Improvement to the remote testing toysuite
1696 2004-07-10 Martin Quinson
1697 [autoconf mechanism]
1698 - get ride of a bunch of deprecated macros
1699 - actually run the test for two-compliment, not only compile it :-/
1700 - test whether the structures get packed (and bail out if yes. Damn.
1701 Alignment is a serious matter)
1702 - test whether the structures get compacted (but respecting the alignment
1703 constraints of each types)
1704 - test whether the array fields of structures can straddle alignment boundaries
1706 - Damnit, double are bigger than float (typo in creation of 'double' datadesc)
1707 (took me 2 hours to find that bug, looking at the wrong place)
1708 - Add gras_datadesc_declare_{union,struct}_close(). They must be used
1709 before sending/receiving and are used to compute the offsets of fields
1710 - Given that padding size depend even on compiler options, keep track of
1711 alignment and aligned_size only for the current architecture. Not a big
1712 deal since we send structure fields one after the other (seems
1714 - Add the datastructure used for IEEE paper by the PBIO guys to the test
1715 program, let it work on linux/gcc/little32. portability todo.
1717 2004-07-08 Martin Quinson
1718 - import and improve remote compilation support from FAST
1719 - make sure make check works on half a dozen of machines out there
1721 2004-07-07 Martin Quinson
1722 Let's say it's version 0.0.3 ;)
1723 - Implement conversions (yuhu!)
1724 - Let it work on solaris (beside conversion, of course)
1725 - Stupid me, using rand() to generate the conversion datatests in not wise.
1727 2004-07-06 Martin Quinson
1728 - Let make dist work, since I'm gonna need it to compile on remote hosts
1729 - Let Tests/datadesc_usage write the architecture on which the file was
1730 generated as first byte.
1731 - Add PowerPC (being also IRIX64), SPARC (also power4) and ALPHA
1732 architecture descriptions.
1733 - Add datadesc_usage.{i386,ppc,sparc} files being the result of execution
1734 on those architectures.
1735 - Optimization: send/recv array of scalar in one shoot
1737 2004-07-05 Martin Quinson
1738 - YEAH! GRAS/SG and GRAS/RL are both able to run the ping example !
1740 - Plug a whole bunch of memleaks
1741 - each process now have to call gras_{init,exit}. One day, their log
1742 settings will be separated
1743 - Continue the code factorisation between SG, RL and common in Transport.
1745 2004-07-04 Martin Quinson
1747 - Redistribution between SG and RL.
1748 We wanna have to accept in SG, so move accepted related parts of RL in
1749 the common part. (more precisely, the dynar of all known sockets is no
1750 more a static in transport.c, but part of the process_data)
1752 [gras_stub_generator]
1753 - Bug fix: Do call gras_process_init from gras_init (wasnt called in RL).
1755 2004-07-03 Martin Quinson
1756 - Create a new log channel tbx containing dict, set, log, dynar (to shut
1757 them all up in one shot)
1759 - Fix the ugly case of reference to dynamic array.
1760 - New (semi-public) function gras_datadesc_size to allow the messaging
1761 layer to malloc the needed space for the buffer.
1763 - gras_socket_close now expect the socket to close (and not its address to
1764 put NULL in it after it). This is because the socket passed to handlers
1765 is one of their argument (=> not writable).
1767 - propagate the interface cleanup from last week in datadesc, ie remove a
1768 superfluous level of indirection. User pass adress of variable
1769 containing data (both when sending and receiving), and not of a variable
1770 being a pointer to the data. Let's say that I like it better ;)
1771 The price for that is constructs like "int msg=*(int*)payload" in
1772 handlers, but it's a fine price, IMHO.
1774 - Let it work in RL (yuhu)
1776 2004-06-21 Martin Quinson
1778 - porting SG plugin and SG select to new standards (works almost).
1779 - plug memleaks and fix bugs around.
1782 - cleanup the prototype of data recv and force users to specify when they
1783 want to handle references to objects. Test case working even for cycles.
1784 - plug memleaks. Valgrind is perfectly ok with this.
1786 2004-06-12 Martin Quinson
1788 - cleanup the separation between plugin and main code in plugin creation
1790 2004-06-11 Martin Quinson
1792 - Reput hook for raw sockets, needed for BW experiments
1793 - kill a few lines of dead code
1794 [Data description] Interface cleanup
1795 - gras_datadesc_by_name returns the searched type or NULL.
1796 That way, no variable is needed to use a type desc once, which makes
1798 - gras_datadesc_declare_[struct|union]_append_name is removed. The last
1799 two parameters were strings (field name, type name), leading to
1801 [Dicos] Interface cleanup
1802 - gras_dico_retrieve -> gras_dico_get ; gras_dico_insert -> gras_dico_set
1803 This is consistant with the dynar API.
1805 2004-04-21 Martin Quinson
1807 - Porting to new standards.
1809 - interface cleanup.
1810 There is no bag anymore, no need to take extra provision to mask the
1811 pointers behind "ID".
1812 Better splitup of functions between files create/exchange/convert.
1813 This is still a bit artificial since convert and receive are so
1814 interleaved, but anyway.
1816 - add a queued message list to procdata (the ones not matching criteria
1818 - factorize some more code between SG and RL wrt procdata
1820 - use gras_exit in example to track memleaks
1821 - get rid of gs_example now that GS is properly integrated into gras
1822 - update run_test to integrate the lastest tests (datadesc)
1824 - rename WARNINGn macros to WARNn since it prooved error-prone
1826 2004-04-19 Martin Quinson
1828 - register init/exit functions within gras module mechanism
1829 - send/receive function.
1830 Convertion is not implemented, but short-cutted if not needed.
1831 struct/array elements are sent one by one (instead of block-wise), but
1832 nobody really cares (yet). Get a prototype before optimizing.
1833 - tests (using a file socket) for DD send/receive on:
1834 - base types: int, float
1835 - array: fixed size, string (ie ref to dynamic string)
1836 - structure: homogeneous, heterogeneous
1837 - chained list, graph with cycle
1838 Believe it or not, valgrind is not too unhappy with the results. The
1839 cycle happily segfaults, but the others are ok. And I'm sick of pointers
1843 - Bugfix when using a filename explicitely (instead of '-')
1845 2004-04-09 Martin Quinson
1847 - factorize more code between RL and SG in socket creation
1848 - Complete the implementation and tests of:
1850 o file (only in RL, and mainly for debugging)
1852 I lost 3 days to design a portable address resolver, and then decided
1853 that the prototype mainly have to run on my box.
1854 Addressing portability too early may be like optimizing too early :-/
1856 - use gras_init in the Tests instead of the crappy parse_log_opt
1857 (the latter function is removed)
1858 [Conditional execution]
1859 - New functions: gras_if_RL/gras_if_SG (basic support for this)
1860 [Code reorganisation]
1861 - Get rid of libgrasutils.a since it makes more trouble than it solves.
1862 Build examples against the RL library, since there is no way to disable
1863 its creation for now.
1865 For information, the beginning of coding on GRAS was back in june
1866 2003. I guess that every line has been rewritten at least twice since