-SimGrid (3.20) NOT RELEASED YET (Release target: June 21. 2018 10:07 UTC)
+SimGrid (3.21) NOT RELEASED (Release Target: September 23. 2018, 1:54 UTC)
+
+S4U new features:
+ - s4u::Io: IOs go asynchronous as activities. This comes with new methods in the
+ s4u::Storage class:
+ - io_init(sg_size_t, s4u::Io::OpType) to create a READ or WRITE asynchronous
+ IO operations that can be started, waited for, or canceled as a regular
+ activity.
+ - read_async(sg_size_t) and write_async(sg_size_t) which are wrappers on
+ io_init() + start()
+ - Fully reimplement auto_restart mechanism that was utterly broken
+ (fix #22, #131 and #281 that were all very related)
+ - When creating an actor from a function and its parameters,
+ move-only parameters are not allowed anymore, as it would prevent
+ the actor to be restartable if its parameters are consumed on run.
+
+Tracing:
+ - Rename 'power' and 'power_used' variables into 'speed' and 'speed_used'
+ - New host variable: 'core_count'
+
+XBT:
+ - Remove xbt_os_thread_specific features
+ - Remove portability wrapper to condition variables
+ - Remove xbt_os_thread_yield()
+
+Java:
+ - Due to an internal bug, Msg.run() must now be your last line.
+ We hope to fix it in a future release, and we are sorry for the inconvenience.
+
+Fixed bugs:
+ - #22: Process autorestart seem to only work with CAS01 cpus
+ - #93: simgrid should not eat --help
+ - #131: Java : autostart does not work
+ - #264: Add ptask L07 resource tracing
+ - #271: Dynamic and manual replay of SMPI traces
+ - #279: Breakpoints option uses time deltas instead of absolute time
+ - #281: Daemonized actor no longer daemonized after an auto-restart
+ - #282: TIT convertor erase traces when using absolute path in the trace list file
+ - #285: segfault when a s4u actor kills itself with msg process tracing activated
+ - #286: Pajé traces are not exposing the number of cores
+ - #287: Command-line parsing should stop when encountering '--'
+ - #288: MPI_Init(NULL, NULL)
+ - #296: DTD too permissive
+
+----------------------------------------------------------------------------
+
+SimGrid (3.20) Released June 24. 2018
+
+The proxy snake_case() release.
+
+S4U:
+ - The whole API is now using snake_case() instead of mixing it with camelCase.
+ Compatibility wrappers in place for one year.
+ - We took the opportunity to increase the consistency of the API.
+ Please report any remaining glitches.
+ - New function simgrid::s4u::Host::get_actor_count:
+ Returns the number of actors running on a specific host.
+
+SMPI:
+ - SMPI is now tested with ~45 proxy apps from various sources, with none or
+ only minor patching needed: check https://github.com/simgrid/SMPI-proxy-apps
+ - 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.
+ - Basic support of MPI_Cancel. Robustness not guaranteed.
+ - Support of MPI_Win_allocate_shared, MPI_Win_shared_query, MPI_Comm_split_type
+ (only for MPI_COMM_TYPE_SHARED).
+ - New option: smpi/privatize-libs, to add external shared libs to be privatized
+ by SMPI. They will be copied locally and loaded separately by each process.
+ Example --cfg=smpi/privatize-libs:"libgfortran.so.3;libscalapack.so".
+ - Tracing: add tracing for MPI_Start, Startall, Testall, Testany
+ - Interception of getopt, getopt_long and getopt_long_only calls to avoid issues
+ with internal index optind with multiple processes. Only works if MPI_Init has
+ already been called.
+ - Fortran: SMPI builds a mpi.mod file which should allow use of "use mpi"
+ syntax without preprocessing tricks.
TRACE
- Change --cfg=tracing/msg/vm to --cfg=tracing/vm as virtual machine
identify which request you want to wait for. We do this via the
triplet (sender, receiver, tag), which needs to be added:
<rankid> <command> <sender> <receiver> <tag>
- - We lowercased all actions: For instance, instead of allReduce, we now
- use allreduce.
+ - Actions are now in lower case (e.g., "allReduce" becomes "allreduce").
+ New script simgrid_convert_TI_traces.py: upgrade your TI traces.
MSG
- The deprecation of MSG is ongoing (but this should not impact you).
your MSG calls in src/msg/msg_legacy.cpp.
- MSG can still be used, but won't evolve anymore.
-S4U:
- - Introduced new function simgrid::s4u::Host::get_actor_count. This function
- returns the number of actors running on a specific host.
-
Plugins:
- Allow to run the Link energy plugin from the command line with
--cfg=plugin:link_energy
- kill simix::onDeadlock() that was somewhat dupplicating s4u::on_deadlock()
- Improve performance when handling timeouts of simix synchros.
-SMPI:
- - SMPI is now tested with ~45 proxy apps from various sources, with none or
- only minor patching needed: check https://github.com/simgrid/SMPI-proxy-apps
- - 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.
- - Basic support of MPI_Cancel. Robustness not guaranteed.
- - Support of MPI_Win_allocate_shared, MPI_Win_shared_query, MPI_Comm_split_type
- (only for MPI_COMM_TYPE_SHARED).
- - New option: smpi/privatize-libs, to add external shared libs to be privatized
- by SMPI. They will be copied locally and loaded separately by each process.
- Example --cfg=smpi/privatize-libs:"libgfortran.so.3;libscalapack.so".
- - Tracing: add tracing for MPI_Start, Startall, Testall, Testany
- - Interception of getopt, getopt_long and getopt_long_only calls to avoid issues
- with internal index optind with multiple processes. Only works if MPI_Init has
- already been called.
- - Fortran: SMPI builds a mpi.mod file which should allow use of "use mpi"
- syntax without preprocessing tricks.
-
XBT:
- Config: the C API is now deprecated (will be removed in 3.23), and
the C++ API has been slightly improved.
- #258: daemonized actors hang after all non-daemonized actors have completed
- #267: Linker error on unit_tmgr
- #269: SMPI: tracing of MPI_Wait/all/any broken
- - SMPI: Fix various crashes with combined use of MPI_PROC_NULL and MPI_IGNORE_STATUS
+ - SMPI: Fix various crashes with combined use of MPI_PROC_NULL and MPI_IGNORE_STATUS
----------------------------------------------------------------------------
