Options network/loopback-lat and network/loopback-bw have been added to adapt
these values if needed. Network and routing models already providing separate
loopbacks (clusters and such) are not impacted by this change.
+ - SMPI now adds 16 bytes of header to each message sent, in order to simulate
+ metadata that are added to each MPI message by MPI libraries (tag,
+ src/dest, and communicator information). This may change simulation times
+ for very small message sizes, but should be more realistic.
+
+Documentation:
+ - New examples: wifi networks, and communication suspend
+
+S4U:
+ - the on_exit() of each actor is also executed when the simulation deadlocks.
+ - New functions: s4u::Activity:: suspend(), resume() and is_suspended()
+ An example is provided for s4u::Comm but it should work with Exec and Io.
+
+SMPI:
+ - Update proxy apps coverage of new ECP apps: 60+ apps now tested nightly on
+ https://framagit.org/simgrid/SMPI-proxy-apps
+ - MPI/IO: supports names starting with "./"
+ - Fortran: many MPI/IO bindings, support for MPI_UB/LB, C MPI_INT/FLOAT/DOUBLE
+ datatypes.
+ - smpicc/cxx/ff/f90 now will actually perform definition checks at link time. When
+ building shared libraries, this may cause issues, so environment variable
+ SMPI_NO_UNDEFINED_CHECK can be added to disable this.
+
+C binding and interface:
+ - The return type of the sg_actor_on_exit() callbacks is now 'void'
+ (int value was previously ignored)
+ - Many MSG tests were converted to the new S4U's interface in C, that
+ was extended for that.
General:
+ - Require a compiler with C++14 support.
+ Take care to upgrade FindSimgrid.cmake if it's used.
- LTO is now enabled for Intel/clang compilers.
- LTO behavior on GCC can be parameterized using LTO_EXTRA_FLAG in cmake.
Setting it to "auto" will use all available cores, while setting it to n will
use n cores to speedup link step (usage: cmake -DLTO_EXTRA_FLAG=4).
-
-C interface:
- - Many MSG tests were converted to the new S4U's interface in C, that
- was extended for that.
-
-Simix:
- Remove obsolete option --cfg=contexts/parallel-threshold.
+XML and models:
+ - New routing 'WiFi' that makes it easier to specify a wifi network zone.
+ - New plugin: wifi_energy. See the associated example.
+
Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
(FG: issues on Framagit; GF: issues on GForge; GH: issues on GitHub)
- FG#41: Add sg_actor_create C interface
- FG#43: xbt::random needs some care
- FG#48: The Impossible Did Happen (yet again)
+ - FG#50: Suspending an actor executed at the current timestamp fails
- FG!24: Documentation and fix for xbt/random
- FG!35: Add a modeling hint for parallel links in doc
- FG!36: [xbt/random] Read/Write the state of the RNG
+ - FG#54: How to suspend a comm?
- GF#18137: Allow different stack sizes?
- GH#128: Parallelization of simulation with --cfg=contexts/nthreads
- GH#139: Allow pthread creation in SMPI
- GH#336: Packet-level simulation using SMPI?
+ - GH#346: [SMPI] error while loading shared libraries: libsimgrid.so
- GH!337: Fix link_energy plugin for wifi platforms
- GH!339: Add Mailbox set_receiver method to python binding
+ - GH!344: Cast hugepages macros parameters to int64
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