X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/bbabd1eca8556daa80b9ebda88e393323d1ae462..9900c8f9847ec57bd5e69aa82ada3c90fa542a56:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 9ecffb07e2..7dd1b9a45b 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,23 +1,118 @@ -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) -Java: - - Expose host load plugin: loadInit, getCurrentLoad, getComputedFlops, getAvgLoad +General: + - Stop setting random seed with srand48() at initialization. + - Use addr2line as a fallback for stacktraces when backtrace is not available. + +XBT: + - New log appenders: stdout and stderr. Use stdout for xbt_help. + - Drop xbt_dict_dump. + +SMPI: + - SMPI now reports support of MPI3.1. This does not mean SMPI supports all MPI 3 calls, but it was already the case with 2.2 + - MPI/IO is now supported over the Storage API (no files are written or read, storage is simulated). Supported calls are all synchronous ones. + - MPI interface is now const correct for input parameters + +Model-checker: + - Remove option 'model-check/record': Paths are recorded in any cases now. + +Fixed bugs (GH=GitHub; FG=FramaGit): + - FG#10: Can not use MSG_process_set_data from SMPI any more + - FG#11: Auto-restart actors forget their on_exit behavior + - 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 + +---------------------------------------------------------------------------- -Core: - - Replace our own code to display a backtrace (that was forking addr2line) +SimGrid (3.22) April 1. 2019 + +The Easter Christmas 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 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). + - Stop setting random seed with srand() at initialization. + +XML + - In and , 'availability_file' is now 'speed_file'. + XML file version remains 4.2 since old files are still compatible. + +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. 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. + - MSG_process_create and MSG_process_attach now crash if the host used + to run this process is off. + - Fix the protype of MSG_process_on_exit() + Now use (int,void*) callbacks instead of (void*,void*) ones. + The implementation was ways too messy to actually work, I guess. + +SMPI: + - 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. + - 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 xbt_str_join_array(). + - Drop cunit, use Catch2 instead. + +Kernel: + - Many cleanups in the kernel::activity namespace. This was long + overdue, and shall open the path to many future endeavors. 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 + ---------------------------------------------------------------------------- SimGrid (3.21) October 3. 2018 @@ -36,7 +131,7 @@ Documentation: - 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). + and would need more love (such as the configuration flags). Things will certainly further improve in the future releases. S4U new features: @@ -50,7 +145,7 @@ S4U new features: - 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 + - read_async(sg_size_t) and write_async(sg_size_t) which are wrappers on io_init() + start() Tracing: @@ -78,7 +173,7 @@ Java: 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? @@ -685,7 +780,7 @@ SimGrid (3.14) Released December 24. 2016 * VM I/O related things: - Ignored parameter of vm_create: core_nb, disk_path and disk_size. - Unimplemented save/restore methods - * MSG_as_router_get_property_value() was redundent with + * MSG_as_router_get_property_value() was redundant with MSG_environment_as_get_property_value(). - Removed MSG_as_router_*propert*() functions - Added MSG_environment_as_set_property_value() for consistency @@ -779,7 +874,7 @@ SimGrid (3.13) stable; urgency=low flops that a , , or can deliver per second. - In , attribute kind="POWER" is now kind="SPEED". - In and , attributes availability and state are gone. - It was redundent with state and availability traces, and with peak values. + It was redundant with state and availability traces, and with peak values. - In , attributes availability_file and state_file are gone. It was too complex and unused. - Kill . Was not doing anything. @@ -2960,7 +3055,7 @@ SimGrid (3.0.1) stable; urgency=low the pthread backend. It caused some weird deadlock or behavior depending on the pthread implementation. [AL] * Bugfix: get the exceptions raised in the simulator repport where - and why they come from when they are not catched in time [AL, MQ] + and why they come from when they are not caught in time [AL, MQ] SURF: * Bugfix: Do repport the error when two non-connected hosts try to @@ -3052,7 +3147,7 @@ SimGrid (2.96) unstable; urgency=low * New! Exception handling with setjmp or such (code from OSSP ex) [MQ] This deprecates the xbt_error_t mechanisms. It modifies (simplifies) all XBT and GRAS API. - MSG API keeps unchanged (exceptions raised by XBT are catched from + MSG API keeps unchanged (exceptions raised by XBT are caught from within MSG and masked with existing error handling facilities) SURF: