-SimGrid (3.19) NOT RELEASED YET (target: March 20 2018, 16:15:27 UTC)
+SimGrid (3.20) NOT RELEASED YET (Release target: June 21. 2018 10:07 UTC)
+
+TRACE
+ - Change --cfg=tracing/msg/vm to --cfg=tracing/vm as virtual machine
+ behavior tracing is no longer limited to MSG
+
+ S4U:
+ - Introduced new function simgrid::s4u::Host::get_actor_count. This function
+ returns the number of actors running on a specific host.
+
+ Simix:
+ - Add parameter --cfg=simix/breakpoint to raise a SIGTRAP at given time.
+
+ SMPI:
+ - Replay: The replay file has been re-written in C++.
+ - Replay: Tags used for messages sent via MPI_Send / MPI_Recv are now
+ supported. They are stored in the trace and used when replayed.
+
+ XBT:
+ - Config: the C API is now deprecated (will be removed in 3.23), and
+ the C++ API has been slightly improved.
+
+ Fixed bugs:
+ - #143: Setting a breakpoint at a given time
+ - #258: daemonized actors hang after all non-daemonized actors have completed
+
+----------------------------------------------------------------------------
+
+SimGrid (3.19.1) Released March 22 2018
+
+ The Fixed ABI Release.
+
+ As you may know, we are currently refactoring SimGrid in deep.
+ Upcoming SimGrid4 will be really different from SimGrid3: modular,
+ standard and extensible vs. layered, homegrown and rigid. C++ vs. C.
+
+ Our goal is to smooth this transition, with backward compatibility
+ and automatic update paths, while still progressing toward SimGrid4.
+
+ SimGrid remains open during works: The last pure SimGrid3 release was
+ v3.12 while all subsequent versions are usable alpha versions of
+ SimGrid4: Existing interfaces remain unchanged, but the new S4U
+ interface is budding and the internals are deeply reorganized.
+
+ Since 2015, we work hard to reduce the changes to public APIs. When
+ we need to rename a public library symbol in S4U, we let your
+ compiler issue an explicative warning when you use the deprecated
+ function. These messages remain for four releases, i.e. for one full
+ year, before turning into an error. Starting with v3.15, your can
+ also adapt to API changes with the SIMGRID_VERSION macro, that is
+ defined to 31500 for v3.15, to 31901 for v3.19.1 and so on.
+
+ Starting with this v3.19.1, our commitment to reduce the changes to
+ the public interfaces is extended from the API to the ABI: a program
+ using only MSG or SimDag and compiled against a given version of
+ simgrid can probably be used with a later version of SimGrid without
+ recompilation. We will do our best... but don't expect too much of
+ it, that's a really difficult goal during such profund refactoring.
+
+ The difference between v3.19 and v3.19.1 is that the former was
+ accidentally breaking the ABI of MSG, while the later is restoring
+ the previous ABI.
+
+ S4U and kernel APIs will still evolve until SimGrid4, with one-year
+ deprecation warnings as currently. In fact, cleaning up these
+ interfaces and converting them to snake_case() is one release goal of
+ v3.20. But don't worry, we are working to smooth this upgrade path.
+
+ In summary, new projects should start with S4U to benefit of the
+ future, but old MSG projects should still be usable with no change.
+
+----------------------------------------------------------------------------
+
+SimGrid (3.19) Released March 20 2018
+
+ The Moscovitly-cold Spring release.
+
+ SMPI user-visible improvements:
+ - Support of MPI_Type_create_subarray
+ - Unimplemented MPI calls now abort (instead of issuing a warning)
+ Some harmless calls around errhandlers still only issue a warning.
+ - MPI_Sendrecv was behaving badly when MPI_PROC_NULL was sender or receiver.
+ - Starting MPI ranks (or even MSG/S4U actors) once the simulation started
+ is now possible (mmap privatization was refactored to this end).
+ Adding new SMPI instances should also be technically doable now.
+
+ SMPI internal cleanups:
+ - Removed index notion from SMPI -- no more "getPid() - 1"!
+ In tracing files, actors are called rank-<PROCESS-ID> but these are
+ NOT the real ranks (tracing several communicators is not supported yet).
+ - Deprecate smpi_process_index() (will be removed in 3.22)
+ - Better testing on classical proxy apps, through an external project:
+ https://github.com/simgrid/SMPI-proxy-apps/
+
+ Documentation
+ - Use a graphical TOC to make it easier to find the documentation you need
+ - Revamp the MSG tutorial
+
+ MSG
+ - Fix MSG_task_get_remaining_work_ratio(): return 1.0 for unstarted tasks.
+ - Remove parameter of MSG_process_killall().
+ Resetting the PID was bogus anyway (several actors could have the same PID).
S4U
- - Execution->setHost() can be called after start() to migrate it.
+ - Execution->setHost() can be called after start(), to migrate it.
- Comm::test_any() is now implemented.
+ - s4u::Actor now has onCreation() and onDestruction() signals.
+ - Install some kernel header files for the users' plugins and more.
+ Warning, their API is really not stable yet.
+ include/simgrid/kernel/resource/{Action,Resource,Model}.hpp
+ include/simgrid/kernel/routing/*Zone.hpp
+
+ SimDag
+ - SD_task_dependency_add(): remove unused parameters 'name' and 'data'.
+
+ Build System and other cleanups:
+ - Remove unused run-time parameter "tracing/onelink-only".
+ - SimGrid now works with intel compilers (MC still buggy)
+ - Remove XBT_LOG_CONNECT, it should be useless nowadays.
+ - tesh kills subprocesses on timeout (but not on windows)
+
+ PLATFORM:
+ - Rename FULLDUPLEX into SPLITDUPLEX (old name still accepted)
Fixed bugs:
+ - #194: Feature request: simgrid::s4u::Comm::test_any()
- #245: migrating an actor does not migrate its execution
+ - #254: Something seems wrong with s4u::Actor::kill(aid_t)
+ - #256: Modernize FindSimGrid.cmake
+ - #257: Fix (ab)use of CMake install
+
+----------------------------------------------------------------------------
SimGrid (3.18) Released December 24 2017
- #221: odd LMM warning when killing an actor
- #120: Memory leak when the processes are forcefully killed
+----------------------------------------------------------------------------
+
SimGrid (3.17) Released October 8 2017
The Drained Leaks release: (almost) no known leaks despite the tests.
