-SimGrid (3.22) NOT RELEASED (Release Target: December 21. 2018, 22:23 UTC)
+SimGrid (3.23) NOT RELEASED (Release Target: June 21. 2019, 15:54 UTC)
-The Sneaky Release.
+General:
+ - Stop setting random seed with srand48() at initialization.
+
+XBT:
+ - New log appenders: stdout and stderr. Use stdout for xbt_help.
+ - Drop xbt_dict_dump.
+
+Fixed bugs (GH=GitHub; FG=FramaGit):
+ - FG#10: Can not use MSG_process_set_data from SMPI any more
+ - GH#133: Java : a process can run on a VM even if its host is off
+ - GH#326: Valgrind-detected error for join() when energy plugin is activated
+
+----------------------------------------------------------------------------
+
+SimGrid (3.22) April 1. 2019
+
+The Easter Chrismas Release (this one is somewhat late).
Python:
- We are excited to introduce the SimGrid/S4U interface to your neighborhood
- Not complete yet: asynchronous activities (amongst others) are still missing
- - Still ongoing: the interface may change a bit in the future (please
- report any glitches), but it seems rather fast and reliable already.
- - Forget about Java now (and soon about C++)
-
-Core:
- - Replace our own code to display a backtrace (that was forking addr2line)
+ - Still ongoing: the interface may change in the future. We need more
+ testers! Please report any glitches.
+ - No new project using Java should start now. Please switch to Python.
+
+General:
+ - Some of the internal cleanups may lead to speed improvements:
+ - The hard limitation on the amount of simulated actors with
+ Java+Mac was removed. Now, the available memory is the only limit.
+ - Our refcounting was tidyied, leading to 10% speedups in some cases.
+ - We are still working on making our code robust to the actor kills
+ and hosts' churn. Things are improving, but it's not perfect yet.
+ - Replaced our own code to display a backtrace (that was forking addr2line)
with the Boost.Stacktrace library.
You won't see your backtraces without this optional dependency.
- Bump cmake dependency to 3.5 (provided by Ubuntu 16.04).
The implementation was ways too messy to actually work, I guess.
SMPI:
- - Change the way SMPI_SAMPLE_* macros work to avoid invalidating cache
+ - Change the way SMPI_SAMPLE_* macros work to avoid invalidating cache
too often and provide more accurate timings.
+ - Add -gdb, -lldb, and -vgdb shortcuts to help debug MPI codes with smpirun
+ - MPI_Alltoallw support
+ - Partial MPI nonblocking collectives implementation: MPI_Ibcast, MPI_Ibarrier,
+ MPI_Iallgather, MPI_Iallgatherv, MPI_Ialltoall, MPI_Ialltoallv, MPI_Igather,
+ MPI_Igatherv, MPI_Iscatter, MPI_Iscatterv, MPI_Ialltoallw, MPI_Ireduce,
+ MPI_Iallreduce, MPI_Iscan, MPI_Iexscan, MPI_Ireduce_scatter,
+ MPI_Ireduce_scatter_block, with fortran bindings.
+ - MPI_Request_get_status, MPI_Status_set_cancelled, MPI_Status_set_elements
+ support, MPI_Comm_get_name, MPI_Comm_set_name
+ - Basic implementation of generalized requests (SMPI doesn't
+ allow MPI_THREAD_MULTIPLE) : MPI_Grequest_complete, MPI_Grequest_start
XBT:
- Drop sg_cmdline. Please use xbt_cmdline instead.
-fsplit-stack is the way to go nowadays when using threads.
- Drop the xbt_os_thread_t module (now unused)
- Drop xbt_ex_display(), use simgrid::xbt::log_exception() instead.
+ - Drop xbt_str_join_array().
- Drop cunit, use Catch2 instead.
Kernel:
Fixed bugs:
- #132: Java: a process can not shut down its own host
+ - #220: S4U: detached send causes exception if sender terminates soon after sending
- #261: Document the parameters of parallel execution's constructor
- #300: [s4u] BarrierPtr is missing
- #314: SMPI args internal cleanup
- #316: Fix a bug related to the CPU utilization of multi-core VM
- #318: Invalid trace file when using option --cfg=tracing/smpi/display-sizes:yes
+ - #324: S4U: Attempting to create an actor on turned off host segfaults instead of throwing
- #325: Turning off a host has different behavior on sleeping actors and computing actors
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