SimGrid (3.23.3) NOT RELEASED YET (v3.24 expected September 23. 7:50 UTC)
S4U:
+ - Introduce a s4u::Disk interface to manage the newly introduced <disk>
+ tag. s4u::Disk is called to supplant s4u::Storage in a near future. It
+ thus becomes the default resource to execute I/O operations. Examples
+ and the file system plugin have been modified to use disks instead of
+ storage elements. Storage can still be used but is doomed to disappear.
+ Users are thus adviced to update their simulators accordingly.
- Barrier::wait returns SG_BARRIER_SERIAL_THREAD for (only) one actor
for consistency with pthread_barrier_wait()
- Host::get_englobing_zone() returns the englobing netzone
Models:
- Improved the usability of ns-3. Several bugs were ironed out.
+ - Introduce an experimental Wifi model. It sounds reasonable
+ according to the state of the art, but it still has to be properly
+ validated, at least against ns-3.
MSG:
- convert a new set of functions to the S4U C interface and move the old MSG
SMPI:
- Fortran bindings for DVFS have been removed.
- - Add support for MPI_Irsend, MPI_Rsend, MPI_Rsend_init
+ - Add support for MPI_Irsend, MPI_Rsend, MPI_Rsend_init, MPI_Bsend,
+ MPI_Ibsend, MPI_Bsend_init, MPI_Buffer_attach, MPI_Buffer_detach
- SMPI can now be selected by cmake's find_module(MPI) with
MPI_C_COMPILER, MPI_CXX_COMPILER, MPI_Fortran_COMPILER variables.
- Add support for MPI Errhandlers in Comm, File or Win. Default errhandler is now
MPI_ERRORS_ARE_FATAL, so codes which were sending warnings may start failing.
+ - trace-call-location can now be used with TI traces, and replayed.
+ - Default for trace-call-location is now to use file names and not full paths.
+ To revert to previous behaviour (in case of collision of filenames), option
+ "smpi/trace-call-use-absolute-path" can be set to yes.
Model-Checker:
- Use the included xxHash as an hash implem when C++14 is usable.
- Option model-checker/hash was removed. This is always activated now.
- New option smpi/buffering controls the MPI buffering in MC mode.
- - MPI calls now MC_assert() that no MPI_ERR_* code is returned.
+ - MPI calls now MC_assert() that no MPI_ERR_* code is returned.
This is useful to check for MPI compliance.
XBT:
- xbt_mutex_t and xbt_cond_t are now marked as deprecated, a new C interface
- on S4U is already available to replace them by sg_mutex_t and sg_cond_t.
+ on S4U is already available to replace them by sg_mutex_t and sg_cond_t.
+
+XML:
+ - Introduce the <disk> tag as a replacement of the <storage>, <storage_type>,
+ and <mount> tags. The rationale is finish to decouple what should be handle
+ by SimGrid kernel (i.e., resources and activities) from plugins built in
+ user space (e.g., the file system plugin). This new tag currently accepts
+ only three attributes (id, read_bw, and write_bw). All the other information
+ that was declared with the storage related tags now has to be expressed as
+ properties. An example of platform using this new tag is available at
+ examples/platforms/hostsè_with_disks.xml
Fixed bugs (FG#.. -> framagit bugs; FG!.. -> framagit merge requests):
- FG#28: add sg_actor_self (and other wrappers on this_actor methods)
- - FG#29 and FG#33: provide a new C API to mutexes and condition variables
+ - FG#29 and FG#33: provide a new C API to mutexes and condition variables
- FG#30: convert MSG_process_{un}ref to sg_actor_{un}ref
- FG#31: per-actor data
- FG#34: SG_BARRIER_SERIAL_THREAD?
- FG!15: execute_flops now logs compute
- FG!16: Fix the ns-3 bindings when several flows are simultaneously finishing
- FG!17: ns-3: unblock the right number of communications + others issues
-
+ - FG!18: Improving the performance of the ns-3 bindings
+ - GH#219: Error in the throughput of TCP transfer
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SimGrid (3.23.2) July 8. 2019
