SimGrid (3.27.1) NOT RELEASED YET (v3.28 expected June 21. 2021, 03:32 UTC)
New features:
+ - C++ platform interface: Users can now describe their platform directly in C++.
+ This provides greatly flexibility and performance improvement for complex
+ platforms. Main features:
+ - Fat-Tree/DragonFly/Torus composing: allows you to create clusters of
+ "zones", instead of single hosts. This feature enables the description
+ of clusters with complex hosts, composed of several CPUs, GPUs, etc.
+ - StarZone: new zone with a Star-like topology. The routes are defined
+ as a set of links used to communicate from node to everybody (node<->ALL).
+ - Split-Duplex links: auxiliary method to create split-duplex links in
+ the platform, easing its utilisation. It automatically creates both UP
+ and DOWN links (similarly as done in XML).
+ - Please refer to the documentation and the examples included:
+ e.g. examples/cpp/clusters-multicpu/ and examples/platforms/*.cpp.
- New plugin: Producer-Consumer with monitor. Just requires to include the
include/simgrid/plugins/ProducerConsumer.hpp header to be used. See the
associated example (examples/cpp/plugin-prodcons).
- - C++ platform interface: Users can now describe their platform directly in
- C++ code. This provides greatly flexibility and performance improvement
- for complex platforms. Main features:
- - Fat-Tree/DragonFly/Torus composing: allows you to create clusters of
- "zones", instead of single hosts. This feature enables the description
- of clusters with complex hosts, composed of several CPUs, GPUs, etc.
- - StarZone: new zone with a Star-like topology. The routes are defined
- as a set of links used to communicate from node to everybody (node<->ALL).
- - Split-Duplex links: auxiliary method to create split-duplex links in
- the platform, easing its utilisation. It automatically creates both UP
- and DOWN links (similarly as done in XML).
- - Please refer to the documentation and the examples included:
- e.g. examples/cpp/clusters-multicpu/ and examples/platforms/*.cpp.
S4U:
- New: s4u::Comm::wait_all_for() (like s4u::Comm::wait_all, but with a timeout),
is active when set to false, to keep going after a small error
--cfg=smpi/pedantic: True by default. Do not report some harmless MPI errors
which may or may not be problematic in the end.
- - Sampling:
+ - Sampling:
- fix behaviour, as maximum iteration count could be ignored
- add SMPI_SAMPLE_LOCAL_TAG and SMPI_SAMPLE_GLOBAL_TAG macros, to allow user to
use sampling when the same kernel is called with a different set of parameters
which have an impact on the timing.
- - realloc is now intercepted, to be coherent, as malloc/calloc/free were already.
- It should now work with smpi/auto-shared-malloc-thresh.
- - Improve error handling and reporting in multiple places
- - Improve correctness checks on the MPI code.(MPI_Op and MPI_Datatype
- validity checks, truncated messages are now an error, return errors
- when explicitely deleted handles are reused, ...)
- - RMA: multiple fixes and stability improvements.
- - analysis (-analyze flag in smpirun):
- - SMPI can now report buffer leaks as well as MPI handles leaks,
- if code was compiled without SMPI_NO_OVERRIDE_MALLOC.
- - if -trace-call-location is used when compiling, SMPI can report
- origin of leaked handles/buffers
- - group leaks by type/origin in output message if possible
- - New implemented MPI calls: MPI_Comm_test_inter
-
-LUA:
- - Lua platform files are deprecated. Their support will be dropped after v3.31.
-
-Simix:
- - Legacy functions deprecated in this release: SIMIX_get_clock(), SIMIX_run().
+ - realloc is now intercepted, to be coherent, as malloc/calloc/free were already.
+ It should now work with smpi/auto-shared-malloc-thresh.
+ - Improve error handling and reporting in multiple places
+ - Improve correctness checks on the MPI code.(MPI_Op and MPI_Datatype
+ validity checks, truncated messages are now an error, return errors
+ when explicitely deleted handles are reused, ...)
+ - RMA: multiple fixes and stability improvements.
+ - analysis (-analyze flag in smpirun):
+ - SMPI can now report buffer leaks as well as MPI handles leaks,
+ if code was compiled without SMPI_NO_OVERRIDE_MALLOC.
+ - if -trace-call-location is used when compiling, SMPI can report
+ origin of leaked handles/buffers
+ - group leaks by type/origin in output message if possible
+ - New implemented MPI calls: MPI_Comm_test_inter
Models:
- Changed internal implementation of bandwidth factors in network models.
- New tutorial: Model-checking and formal assessment
- New sections: "Demystifying the routing" and "C++ platforms"
+LUA:
+ - Lua platform files are deprecated. Their support will be dropped after v3.31.
+
+Simix:
+ - Legacy functions deprecated in this release: SIMIX_get_clock(), SIMIX_run().
+
Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
(FG: issues on Framagit; GF: issues on GForge; GH: issues on GitHub)
- FG#47: Complete and fix tests from teshuite/s4u/activity-lifecycle
