X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a0c8da3bbcebc9266ce49ee6e48c2b1d52b4a5f8..1363ce9624f4327f3ad5c934b15736a776637dfd:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 78392f19c1..5157b9dfd4 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,4 +1,10 @@ -SimGrid (3.32.1) not released yet (target december 22) +SimGrid (3.34.1) not released (Target: fall 2023) + +---------------------------------------------------------------------------- + +SimGrid (3.34) June 26. 2023 + + Save the planet, skip a release: 3.33 was due 6 months ago, so skip directly to 3.34. General: - SimGrid now requires a compiler with C++17 support for public headers too. @@ -17,13 +23,15 @@ S4U: Comm::set_payload_size() to change the size of the simulated data. - New function: Engine::flatify_platform(), to get a fully detailed vision of the configured platform. + - New Task abstraction: They are designed to represent dataflows, i.e, graphs of repeatable Activities. + See the examples under examples/cpp/task-* and the associated documentation. - Full simDAG integration: Activity::start() actually starts only when all dependencies - are fullfiled. If it cannot be started right away, it will start as soon as it becomes + are fulfilled. If it cannot be started right away, it will start as soon as it becomes possible. - Allow to set a concurrency limit on disks and hosts, as it was already the case for links. - Rename Link::get_usage() to Link::get_load() for consistency with Host:: - Every signal now come with a static version that is invoked for every object of that class, - and an instance version that is invoked for this specific object only. For example, + and an instance version that is invoked for this specific object only. For example, s4u::Actor::on_suspend_cb() adds a callback that is invoked for the suspend of any actor while s4u::Actor::on_this_suspend_cb() adds a callback for this specific actor only. - Activity::on_suspended_cb() is renamed to Activity::on_suspend_cb(), and fired right before the suspend. @@ -34,15 +42,13 @@ S4U: That is, callbacks registered in Exec::on_suspend_cb will not be fired for Comms nor Ios. New S4U plugins: - - Task: They are designed to represent dataflows, i.e, graphs of repeatable Activities. - See the examples under examples/cpp/task-* and the documentation in the Plugins page. - Battery: Enable the management of batteries on hosts. See the examples under examples/cpp/battery-* and the documentation in the Plugins page. - Photovoltaic: Enable the management of photovoltaic panels on hosts. See the examples under examples/cpp/photovoltaic-* and the documentation in the Plugins page. Kernel: - - optimize an internal datastructure (use a set instead of a list for ongoing activities), + - optimize an internal data structure (use a set instead of a list for ongoing activities), leading to a potentially big performance gain, in particular with many detached comms. MPI: @@ -52,7 +58,7 @@ MPI: Models: - Write the section of the manual about models, at least. - - WiFi: the total capacity of a link depends on the amout of flows on that link. + - WiFi: the total capacity of a link depends on the amount of flows on that link. - Use the nonlinear callback feature of LMM to reflect this. - Calibration values can be changed to match different MCS configurations - See the example teshsuite/models/wifi_usage_decay/wifi_usage_decay.cpp @@ -75,19 +81,22 @@ sthread: It requires code annotation, as shown in examples/sthread/stdobject/stdobject.cpp Model checking: + - Stateless model-checking is now usable on any system, including Mac OSX and ARM processors. + - The stateless aspects of the MC are now enabled by default in all SimGrid builds. + Liveness and stateful aspects are still controlled by the enabling_model-checking + configuration option. + - Introducing ODPOR and SDPOR reduction strategies + - Introducing guiding heuristics, trying to find bugs faster than DFS in reduced state space. - Synchronize the MBI tests with upstream. - - Show the full actor bactraces when replaying a MC trace (with model-check/replay) + - Show the full actor backtraces when replaying a MC trace (with model-check/replay) and the status of all actors on deadlocks in MC mode. - - The safety/stateless aspects of the MC are now enabled by default in all SimGrid builds. - Liveness and stateful aspects are still controled by the enabling_model-checking - configuration option. - - Stateless model-checking is now usable on any system, including Mac OSX and ARM processors. XBT: - simgrid::xbt::cmdline and simgrid::xbt::binary_name are gone. Please use simgrid::s4u::Engine::get_cmdline() instead. Documentation: + - New tutorial on simulating DAGs. - New section in the user guide on the provided performance models. - New section presenting some technical good practices for (potential) contributors. - Add a section on errors and exceptions to the API documentation.