X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e94c2a7fc81a82998524aa55db075be69990d4ea..c6fde023a12428762790a74a09a715ec16439d84:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 3438268994..5b8e53a061 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,18 +1,77 @@ -SimGrid (3.21) NOT RELEASED (Release Target: September 23. 2018, 1:54 UTC) +SimGrid (3.22) NOT RELEASED (Release Target: December 21. 2018, 22:23 UTC) + +Java: + - Process termination which was broken at version 3.21 has been repaired. + - Expose host load plugin: loadInit, getCurrentLoad, getComputedFlops, getAvgLoad + - Hide the examples into examples/deprecated. New users should use Python. + +Core: + - Replace 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). + +MSG: + - Drop MSG_process_create_from_stdfunc() from the API. + This C++ function was a pimple in the C API, made necessary at some + point by the Java bindings. This is fixed now. + - Hide the examples into examples/deprecated. New users should use S4U. + +XBT: + - Drop sg_cmdline. Please use xbt_cmdline instead. + - Drop the C xbt_os_mutex_t; Use the C++11 std::mutex. + - Drop the C xbt_os_sem_t; Use the C++ xbt::OsSemaphore. + OsSemaphore is implemented in a portable way with C++11 threads. + This should allow much more threads to be created at the same time, + allowing Mac and Java users to simulate many more actors. + - Implement the 'thread' factory with std::thread instead of xbt ones. + It is not possible to set the stack size with threads anymore, but + -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 cunit, use Catch2 instead. + +Fixed bugs: + - #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 + +---------------------------------------------------------------------------- + +SimGrid (3.21) October 3. 2018 + +The Restarting Documentation (TRD) Release. + +Documentation: + - Convert the user manual to Sphinx for improved usability. + Unstable version now hosted on https://simgrid.frama.io/simgrid + Many glitches remain; stay tuned. + - Restrict the Doxygen reference API to the installed header files. + (documenting all internals this way is overkill + doxygen scales badly) + - New tutorial on S4U (highly inspired from the old MSG one, but with + a git repository to fork as a starting point, and a docker image) + - Started but not finished a SMPI tutorial inspired from the JLPC'14 one. + - The Developper manual is still to be converted (not compiled until then) + - Some parts are still missing in this conversion (such as the + platform and deployment sections) while others were blindly converted + and would need more love (such as the configuration flags). + Things will certainly further improve in the future releases. 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 + - Fully reimplement auto_restart mechanism that was utterly broken (fix #22, #131 and #281 that were all very related) + - Implement semaphores (fix #303 and #291) - 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. + - s4u::Io: IOs go asynchronous as activities. New methods in s4u::Storage: + - 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() Tracing: - Rename 'power' and 'power_used' variables into 'speed' and 'speed_used' @@ -23,14 +82,32 @@ XBT: - Remove portability wrapper to condition variables - Remove xbt_os_thread_yield() +SMPI: + - MPICH collective selector now mimics MPICH 3.3b + - OpenMPI collective selector now mimics OpenMPI 3.1.2 (default "tuned" setting) + - MPI_Init(NULL,NULL) is now allowed + - smpi/wtime option now injects time in gettimeofday or clock_gettime calls + - Command-line arguments should now be handled properly in Fortran simulations + - MPI Attributes and related callbacks should work in Fortran + - Apps using C + Fortran should now work + - MPI_* calls now check for non MPI_SUCCESS return values and emit warnings + - Support MPI_Error_String + 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 + - #22: Process autorestart seem to only work with CAS01 cpus + - #56: Feature request: dynamic SMPI replay - #93: simgrid should not eat --help + - #111: How to change the loopback link characteristics? + - #116: Platform cluster radical + - #117: Platform cluster/host order + - #129: Replay_multiple on steroid - #131: Java : autostart does not work + - #143: Setting a breakpoint at a given time + - #235: Network energy models should be integrated - #264: Add ptask L07 resource tracing - #271: Dynamic and manual replay of SMPI traces - #279: Breakpoints option uses time deltas instead of absolute time @@ -40,7 +117,13 @@ Fixed bugs: - #286: Pajé traces are not exposing the number of cores - #287: Command-line parsing should stop when encountering '--' - #288: MPI_Init(NULL, NULL) + - #289: Improve documentation of Actor::on_destruction and this_actor::on_exit() + - #290: Method to check if a mailbox has a message ready to be consumed + - #291: [s4u] semaphores do not seem available yet + - #294: Alltoall collective implementation of mpich + - #295: Starting a Host as OFF is not supported - #296: DTD too permissive + - #299: Add a s4u barrier example ----------------------------------------------------------------------------