SimGrid (3.24.1) NOT RELEASED YET (v3.25 expected December 22. 2029, 04:19 UTC)
+Important user-visible changes:
+- Improve the Python usability (stability and documentation).
+ - A nasty synchronization bug was ironed out, see also below.
+ - Python's doc was organized as a separate tree, now integrated with C++.
+ - C bindings of S4U were not part of the doc.
+ - The C++ doc was also improved as methods are now split by theme.
+- Further deprecate MSG: you now have to pass -Denable_msg=ON to cmake.
+ - This is mandatory to use the Java bindings.
+ - OFF by default; The plan is to completely remove MSG by 2020Q4 or 2021Q1.
+- SimDAG++: Automatic dependencies on S4U activities (experimental)
+ - Some features are already implemented but not all of them
+ - Cannot block an activity until it's scheduled on a resource
+ - No heterogeneous wait_any() that would mix Exec/Comm/Io activities.
+ - See examples/s4u/{io,exec,comm}-dependent for what's already there.
+
+
+
+General:
+- Upgrade documented Java dependency to Java 8 (earlier versions don't work).
+- Drop support for Viva/Triva (old visualization tools), hence removed
+ TRACE_get_node_types() and TRACE_get_edge_types() functions.
+
+Python:
+- Require pybind11 version 2.4.
+- Greatly improve locking during context switches with Python.
+ - Declaring Python callbacks to this_actor::on_exit is now working.
+ - No more tests are failing currently, even on win32.
+
S4U:
- Actor: Merge signals on_migration_start/end into on_host_change
- Actor: Rename migrate() into set_host()
XBT:
- Remove unused parameter 'free_ctn' for xbt_dict_set() and xbt_dict_set_ext().
+- Drop unused functions for dicts and dynars: xbt_dict_cursor_get_elm,
+ xbt_dict_get, xbt_dict_get_elm, xbt_dict_get_ext, xbt_dict_get_key,
+ xbt_dict_remove, xbt_dict_reset, xbt_dynar_compare, xbt_dynar_dump,
+ xbt_dynar_foreach_ptr, xbt_dynar_free_data, xbt_dynar_free_voidp,
+ xbt_dynar_init, xbt_dynar_insert_at_as, xbt_dynar_merge,
+ xbt_dynar_remove_n_at, xbt_dynar_replace, xbt_dynar_search, xbt_dynar_set.
- New module: random, providing classical random numbers generators.
SMPI:
-- New option : "smpi/auto-shared-malloc-thresh" which sets a value for
- allocations' size above which they are considered "shared" by default (as if
- they were performed through SMPI_SHARED_MALLOC macros).
+- New option : "smpi/auto-shared-malloc-thresh" which sets a value for
+ allocations' size above which they are considered "shared" by default (as if
+ they were performed through SMPI_SHARED_MALLOC macros).
Default = 0 = disabled feature.
Note : malloc, calloc and free are now overriden by smpicc/cxx by default.
This can cause some troubles if codes are already overriding these. If this
call, which should be called if SMPI is not being used through smpirun.
Fixed bugs (FG#.. -> framagit bugs; FG!.. -> framagit merge requests):
+ - FG#9: Python bindings crashing
+ - FG#39: Missing s4u::Comm::wait_any_for example
+ - FG#42: Add support for ThreadSanitizer (TSan)
+ - FG!19: Removing RngStream
+ - FG!20: A module for RNG calls
+ - FG!21: Choice between ad-hoc and standard distributions implementations
+ - FG!23: Master
+ - FG!25: Fix link in Mutex doc
+ - FG!26: Fix links in SMPI interface doc
- GH#31: [MC] please provide an option to make MPI_Send asynchronous
- GH#305: Unscheduled tasks are still excuted
- GH#313: smpirun: manual outdated w.r.t. --help
- GH#321: [S4U] Get task remaining work ratio
- GH#323: Crash when an actor turn off his physical host
- - FG!19: Removing RngStream
- - https://lists.gforge.inria.fr/pipermail/simgrid-user/2019-November/004653.html :
+ - GH#335: Missing links on dragonfly example svg
+ - https://lists.gforge.inria.fr/pipermail/simgrid-user/2019-November/004653.html:
MPI_Cart_sub was not working properly. Kudos to Jonathan Borne for the report.
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