X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/28335d43a1e64d3a412e8d6b86e59a389852b0d1..6b56c15c3ec34841fae10fa42a656aec029d27e9:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 2684e57d2d..fcd07294df 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,13 +1,44 @@ -SimGrid (3.30.1) NOT RELEASED YET (v3.31 expected March 20. 2022, 15:33 UTC) +SimGrid (3.31.1) NOT RELEASED YET (v3.32 expected June 21. 2022, 09:13 UTC) + +Python: + - Added the following bindings / examples: + - Comm (now 100% covers the C++ interface): + - Comm.dst_data_size, Comm.mailbox, Comm.sender, Comm.start_time, Comm.finish_time + - Comm.state_str [examples: examples/python/comm-failure/, examples/python/comm-host2host/] + - Comm.remaining [examples: examples/python/comm-host2host/, examples/python/comm-suspend/] + - Comm.set_payload_size [example: examples/python/comm-host2host/] + - Comm.set_rate [example: examples/python/comm-throttling/] + - Comm.sendto, Comm.sendto_init, Comm.sendto_async [example: examples/python/comm-host2host/] + - Comm.start, Comm.suspend, Comm.resume [example: examples/python/comm-host2host/] + - Comm.test_any [example: examples/python/comm-testany/] + - Comm.wait_until [example: examples/python/comm-waituntil/] + - Engine: + - Engine.host_by_name [example: examples/python/comm-host2host/] + - Engine.mailbox_by_name_or_create [example: examples/python/comm-pingpong/] + - Mailbox: Mailbox.ready [example: examples/python/comm-ready/] + +---------------------------------------------------------------------------- + +S4U: + - kill signal Comm::on_completion that was not working anyway. + - Expose signals Activity::on_suspend and Activity::on_resume + +SimGrid (3.31) March 22. 2022. + +The ненасильство release. We stand against war. + +Against the agression by a sick system that forces peoples to take arms against each other. + MC: - Rework the internals, for simpler and modern code. This shall unlock many future improvements. - - You can now define plugins onto SafetyChecker (a simple DFS explorer), using the declared signals. - See CommunicationDeterminism for an example. + - You can now define plugins onto the DFS explorer (previously called SafetyChecker), using the + declared signals. See CommunicationDeterminism for an example. - Support mutex, semaphore and barrier in DPOR reduction - Seems to work on Arm64 architectures too. - Display a nice error message when ptrace is not usable. - - Remove the ISP test suite: it's not free software, and it's superseeded by MBI + - New test suite, imported from the MPI Bugs Initiative (MBI). Not all MBI generators are integrated yet. + - Remove the ISP test suite: it's not free software, and it's superseeded by MBI. SMPI: - fix for FG#100 by ensuring small asynchronous messages never overtake larger @@ -17,32 +48,83 @@ SMPI: - tracing: ensure that we dump the TI traces continuously during execution and not just at the end, reducing memory cost and performance hit. - Update OpenMPI collectives selection logic to match current one (4.1.2) + - Add a coherence check for collective operation order and root/MPI_Op + coherence. Potentially costly so not activated unless smpi:pendantic is set + or -analyze is given. S4U: - New signal: Engine::on_simulation_start_cb() - - Reimplementation of barriers natively. - Previously, they were implemented on top of s4u::Mutex and s4u::ConditionVariable. + - Introduce a new execution mode with this_actor::thread_execute(). This simulate + the execution of a certain amount of flops by multiple threads ran by a host. Each + thread executes the same number of flops, given as argument. An example of this new + function can be found in examples/cpp/exec-threads. + - Reimplementation of barriers natively. + Previously, they were implemented on top of s4u::Mutex and s4u::ConditionVariable. The new version should be faster (and can be used in the model-checker). + - Actor::get_restart_count(): Returns the number of reboots that this actor did. MSG: - MSG_barrier_destroy now expects a non-const msg_barrier parameter. New plugin: the Chaos Monkey (killing actors at any time) - - Along with the new simgrid-monkey script, it tests whether your simulation - resists resource failures at any possible timestamp in your simulation. - - It is mostly intended to test the simgrid core in extreme conditions, - but users may find it interesting too. + - Along with the new simgrid-monkey script, it tests whether your simulation + resists resource failures at any possible timestamp in your simulation. + - It is mostly intended to test the simgrid core in extreme conditions, + but some users may find it interesting too. + +Models: + - New solver for parallel task: BMF. + - More realistic sharing of heterogeneous resources compared to the fair + bottleneck solver used by ptask_L07. + - Implement the BMF (Bottleneck max fairness) fairness. + - Improved resource sharing for parallel tasks with sub-flows (parallel + communications between same source and destination inside the ptask). + - Parameters: + - "--cfg=host/model:ptask_L07 --cfg=host/solver:bmf": enable the ptask + model with BMF solver. + - "--cfg=bmf/max-iterations: ": maximum number of iterations performed + by BMF solver (default: 1000). + - "--cfg=bmf/precision: ": numerical precision used when computing + resource sharing (default: 1e-12). + - This model requires Eigen3 library. Make sure Eigen3 is installed to use BMF. + +General: + - Modifications of the Profile mechanism, with some impact on users + - Addition of a new (S4U) method to init profiles from generic functions to improve versatility + - Fix initial behaviour of state_profiles + - Modify periodicity to behave like a period, and not like a loop delay XBT: - Drop xbt_dynar_shrink(). +Python: + - Made the following bindings static (previously member functions): + - Actor: Actor.kill_all(), Actor.by_pid() + - Host: Host.by_name(), Host.current(), Host.on_creation_cb() + - Mailbox: Mailbox.by_name() + - Added the following bindings: + - this_actor.warning() + - Mailbox.put_init() [example: examples/python/comm-waitallfor/] + - Comm.detach() [example: examples/python/comm-waitallfor/] + - Comm.wait_for() [example: examples/python/comm-waitfor/] + - Comm.wait_any_for() + - Comm.wait_all_for() [example: examples/python/comm-waitallfor/] + - Mutex [example: examples/python/synchro-mutex/] + - Barrier [example: examples/python/synchro-barrier/] + - Semaphore [example: examples/python/synchro-semaphore/] + +Build System: + - Remove target "make uninstall" which was incomplete and no longer maintained. + Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests) (FG: issues on Framagit; GH: issues on GitHub) - FG#57: Mc SimGrid should test whether ptrace is usable - FG#87: Smpi scripts fail with spaces in paths - FG#100: [SMPI] Order of the message matching is not guaranteed - FG#101: LGPL 2.1 is deprecated license + - FG#104: "make uninstall" not up-to-date - GH#151: Missing mutexes for DPOR. + - FG#105: "Variable penalty should not be negative!" with in-flight messages and bandwidth profiles ----------------------------------------------------------------------------