+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/]
+
+Platform description & visualization:
+ - More robust sanity checks for platforms, to reject unallowed topologies with
+ a proper error message.
+ - One new C++ platform example, supernode.cpp. A Python script (supernode.py)
+ demonstrates how we can generate a nice graphical representation of the
+ platform.
+
+Tools:
+ - Enhancements to the graphicator tool:
+ - Allow to dump the platform topology as a CSV file representing the edges
+ of the graph (in addition to the DOT format).
+ - Fix graphicator for "cluster" topologies (e.g. fat-tree, dragonfly).
+
+Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
+ (FG: issues on Framagit; GH: issues on GitHub)
+ - FG#105: "Variable penalty should not be negative!" with in-flight messages and bandwidth profiles
+
----------------------------------------------------------------------------
-SimGrid (3.26.1) NOT RELEASED YET (v3.27 expected March 20. 2021, 09:37 UTC)
+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 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.
+ - 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
+ ones, conforming to the standard.
+ - replay: fix waitall behaviour to avoid forgetting requests and leaking
+ their handles.
+ - 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()
+ - 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 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: <N>": maximum number of iterations performed
+ by BMF solver (default: 1000).
+ - "--cfg=bmf/precision: <N>": 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.
+
+----------------------------------------------------------------------------
+
+SimGrid (3.30) January 30. 2022.
+
+The Sunday Bloody Sunday release.
+
+Main user-visible changes:
+ - The SimDag API for the simulation of the scheduling of Directed Acyclic
+ Graphs has been dropped. It was marked as deprecated for a couple of years.
+ We finally complete the implementation of what has been called SimDag++
+ internally, i.e., porting the different features of SimDag on top of S4U.
+ The new way to simulate the execution of dependent activities directly by
+ maestro (without any other actor) is details in the examples/cpp/dag-* series
+ of examples.
+ - The removal of SimDag led us to also remove the export to Jedule files that
+ was tightly coupled to SimDag. The instrumentation of DAG simulation is still
+ possible through the regular instrumentation API based on the Paje format.
+ - We also dropped the old and clumsy Lua bindings to create platforms in a
+ programmatic way. It can be done in C++ in a much cleaner way now, which
+ motivates this suppression.
+
+S4U:
+ - Introduce on_X_cb() functions for all signals, to attach a new
+ callback to the signal X. The signal variables are now hidden and
+ only these functions should be used.
+ Rationale: this enables the usual deprecation scheme where functions
+ remain for 4 releases if we need to modify the signals, while the
+ current code with the signal variables directly visible prevents any
+ smooth transition.
+ - New function: Engine::run_until(date), to split the simulation.
+ - New signal: Activity::on_veto, to detect when an activity fails to start.
+ - Signal change: Comm::on_start(Comm&, bool) has been replaced by
+ Comm::on_send and Comm::recv. These two signals respectively correspond to
+ when the sending or receiving side of a Comm is ready. They are raised at
+ the same locations as the former Comm::on_start signal.
+ - New function: Engine::track_vetoed_activities() to interrupt run()
+ when an activity fails to start, and to keep track of such activities.
+ Please see the corresponding example for more info.
+ - New functions: s4u::Comm::{sendto_init, set_source, set_destination} to enable
+ the use of vetoers with direct host-to-host communications. Both source and
+ destination have to set for a comm to start. Each call to these setters check
+ if all vetoes are satisfied. When it is the case, the comm starts. A use case of
+ these functions is given in examples/cpp/dag-scheduling.
+ - New functions: {Exec, Io}::update_priority allow you to modify the priority of
+ these kinds of activities during their execution. Behavior is detailed in
+ examples/cpp/io-priority/.
+
+SMPI:
+ - Dynamic costs for MPI operations: New API to allow users to dynamically
+ change injected costs for MPI_Recv, MPI_Send and MPI_Isend operations.
+ Alternative for smpi/or, smpi/os and smpi/ois configuration options.
+ - Fix some issues with the replay mechanism.
+
+XBT:
+ - Function xbt::Extendable::get_data() is now templated with the type of the
+ pointee. Untyped function is deprecated. Use get_data<void>() if you still
+ want to retrieve void*.
+
+Documentation:
+ - New section: "SimGrid MPI calibration of a Grid5000 cluster"
+ presenting how to properly calibrate MPI communications in SimGrid.
+ - Complete and reword the platform section, which is now completed.
+
+Python:
+ - Thread contexts are used by default with Python bindings. Other kinds of
+ contexts revealed unstable, specially starting with pybind11 v2.8.0.
+
+Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
+ (FG: issues on Framagit; GH: issues on GitHub)
+ - FG#95: Wrong computation time for multicore execution after pstate change
+ - FG#97: Wrong computation time for ptask+multicore+pstates
+ - FG#98: SMPI offline simulation is inconsistent with the online simulation
+ (deadlocks / message truncation)
+ - FG#99: Weird segfault when not sealing an host
+
+----------------------------------------------------------------------------
+
+SimGrid (3.29) October 7. 2021
+
+The "Ask a stupid question" release.
+
+We wish that every user ask one question about SimGrid to celebrate.
+On Mattermost, Stack Overflow or using the issues tracker.
+
+New modeling features:
+ - Non-linear resource sharing, modeling resources whose performance heavily degrades with contention:
+ - The total capacity may be updated dynamically through a callback
+ and depends mainly on the number of concurrent flows.
+ - Examples (both cpp and python): io-degradation, network-nonlinear, exec-cpu-nonlinear
+
+ - Dynamic factors: model variability in the speed of activities
+ - Each action can now have a factor that affects its progression.
+ This multiplicative factor is applied when updating the amount of work
+ remaining, thereby an activity with factor=0.5 only uses half of the
+ instantaneous power/bandwidth it is allocated and will appear twice
+ slower than what it actually consumes.
+ - This can be used to model a overhead (e.g., there is a 20 bytes
+ header in a 480 bytes TCP packet so the factor 0.9583) but the novelty
+ is this factor can now easily be adjusted depending on activity's and
+ resources characteristics.
+ - This existed for network (e.g., the effective bandwidth depends
+ on the message in SMPI piecewise-linear network model) but it is now
+ more general (the factor may depend on the source and destination and
+ thus account to different behaviors for intra-node communications and
+ extra-node communications) and is available for CPUs (e.g., if you
+ want to model an affinity as in the "Unrelated Machines" problem in
+ scheduling) and disks (e.g., if you want to model a stochastic
+ capacity) too.
+ - For that, resources can be provided with a callback that computes
+ the activity factor when creating the action.
+ - Example: examples/cpp/exec-cpu-factors
+ - The same mechanism is also available for the latency, which
+ allows to easily introduce complex variability patterns.
+
+Python:
+ - Added support to programmatic platform creation in Python.
+ Example: examples/python/clusters-multicpu
+
+S4U:
+ - Disk and Host now have a set_sharing_policy() too, for non-linear sharing.
+ This can only be set through the API, not through XML files.
-User-visible changes:
+SMPI:
+ - TI Tracing/Replay:
+ - Multiple fixes to ensure reproducibility of tracing
+ - scan/excan can now be replayed
+ - wait action now uses ranks and not pid, as the other ones.
+ - smpi/init and smpi/finalization-barrier are now valid for replays.
+ - exit() is now intercepted by SMPI to avoid premature shutdown of
+ simulation. First non 0 return codes is returned as simulation return
+ code.
+
+Documentation:
+ * New section "Release Notes" documenting recent and current developments.
+ * New section "Modeling I/O: the realistic way" presenting how to properly model disks in SimGrid.
+ * Improvements in API Reference for C++ and Python interfaces.
+
+ns-3 model:
+ - Make wifi creation compatible with ns-3 version 3.34 too.
+
+Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
+ (FG: issues on Framagit; GH: issues on GitHub)
+ - FG#77: Search feature of doc is broken (update sphinx theme version)
+ - FG#78: Multiple fixes for SMPI replay:
+ - TI tracing of allotallv/w was outputting wrong values
+ - MPI_LOGICAL in fortran is actually 32 bits wide, and not 8.
+
+----------------------------------------------------------------------------
+
+SimGrid (3.28) July 14. 2021
+
+The Victoriadagarna Release.
+
+New features:
+ - C++ platform interface: Users can now describe their platform directly in C++.
+ This provides greatly flexibility and performance improvement for complex
+ platforms. Main features:
+ - Fat-Tree/DragonFly/Torus composing: allows you to create clusters of
+ "zones", instead of single hosts. This feature enables the description
+ of clusters with complex hosts, composed of several CPUs, GPUs, etc.
+ - StarZone: new zone with a Star-like topology. The routes are defined
+ as a set of links used to communicate from node to everybody (node<->ALL).
+ - Split-Duplex links: auxiliary method to create split-duplex links in
+ the platform, easing its utilisation. It automatically creates both UP
+ and DOWN links (similarly as done in XML).
+ - Please refer to the documentation and the examples included:
+ e.g. examples/cpp/clusters-multicpu/ and examples/platforms/*.cpp.
+ - New plugin: Producer-Consumer with monitor. Just requires to include the
+ include/simgrid/plugins/ProducerConsumer.hpp header to be used. See the
+ associated example (examples/cpp/plugin-prodcons).
+
+S4U:
+ - New: s4u::Comm::wait_all_for() (like s4u::Comm::wait_all, but with a timeout),
+ s4u::Io::wait_any(), s4u::Io::wait_any_for().
+ - Methods test_all/test_any/wait_all/wait_any in s4u now take their vector
+ parameter by reference, instead of a pointer.
+ - Fixed a bug where Activity::wait_for() killed the activity on timeout.
+ Explicitly cancel the activity to get back to previous behavior.
+ - New: Link::set_concurrency_limit() to limit the amount of concurrent flows.
+
+SMPI:
+ - The default SMPI compiler flags are no more taken from the environment.
+ They can be explicitly set through cmake parameters SMPI_C_FLAGS,
+ SMPI_CXX_FLAGS, or SMPI_Fortran_FLAGS.
+ - New options:
+ --cfg=smpi/finalization-barrier: which can be used to add
+ a barrier inside MPI_Finalize. This can help for some codes which cleanup
+ data attached to a process, but still used in other SMPI processes.
+ --cfg=smpi/errors-are-fatal: True by default, behaves like if MPI_ERRORS_RETURN
+ is active when set to false, to keep going after a small error
+ --cfg=smpi/pedantic: True by default. Do not report some harmless MPI errors
+ which may or may not be problematic in the end.
+ - Sampling:
+ - fix behaviour, as maximum iteration count could be ignored
+ - add SMPI_SAMPLE_LOCAL_TAG and SMPI_SAMPLE_GLOBAL_TAG macros, to allow user to
+ use sampling when the same kernel is called with a different set of parameters
+ which have an impact on the timing.
+ - realloc is now intercepted, to be coherent, as malloc/calloc/free were already.
+ It should now work with smpi/auto-shared-malloc-thresh.
+ - Improve error handling and reporting in multiple places
+ - Improve correctness checks on the MPI code.(MPI_Op and MPI_Datatype
+ validity checks, truncated messages are now an error, return errors
+ when explicitely deleted handles are reused, ...)
+ - RMA: multiple fixes and stability improvements.
+ - analysis (-analyze flag in smpirun):
+ - SMPI can now report buffer leaks as well as MPI handles leaks,
+ if code was compiled without SMPI_NO_OVERRIDE_MALLOC.
+ - if -trace-call-location is used when compiling, SMPI can report
+ origin of leaked handles/buffers
+ - group leaks by type/origin in output message if possible
+ - New implemented MPI calls: MPI_Comm_test_inter
+
+Models:
+ - Changed internal implementation of bandwidth factors in network models.
+ Models affected: CM02, LV08 (default), SMPI, IB.
+ Configuration affected: "network/bandwidth-factors" and "smpi/bw-factors".
+ Bandwidth factors are applied to communications to describe that users
+ cannot use 100% of the available bandwidth. For example, the default network model,
+ LV08, applies a factor of 0.97 to the bandwidth. In older versions, this
+ behavior was implemented by limiting the bandwidth available in the LMM
+ system for this flow. This may give the false impression that there is
+ bandwidth available for other flows due to its underutilization, especially
+ for the dynamic bandwidth factors used in SMPI models.
+ To avoid this, we have modified the implementation so that each flow uses the
+ maximum physical bandwidth according to the LMM system.
+ However, the actual throughput of the flow seen by the user is defined by
+ the physical bandwidth multiplied by the bandwidth factor.
+ This change impacts on the simulation results for all network models on
+ which we have bandwidth factors configured.
+ *****************************************
+ *DO NOT MIX 3.28 RESULTS WITH OLDER ONES*
+ *****************************************
+ This change may impact on the timing of your simulation results.
+ Take care when comparing simulations from different SimGrid's
+ versions. Sorry for the inconvenience.
+ - Dynamic network factors: users can configure a callback to define
+ the network factors dynamically. This API is available at
+ simgrid::kernel::resource::NetworkModelIntf.
+ - Users have access to complete information about the current communication
+ to decide which factor to apply. This includes: message size, source and
+ destination hosts, links and zones traversed.
+ - Dynamic factors for both latency and bandwidth.
+ - For more details, see the example in (examples/cpp/network-factors).
+ - Plugin host_energy: the "watt_off" and "watt_per_state" host properties,
+ deprecated since version 3.24, are no longer supported. Instead, use
+ "wattage_off" and "wattage_per_state".
+
+XBT:
+ - xbt_assert is not disabled anymore, even when built with enable_debug=off.
+
+Documentation:
+ - New tutorial: Model-checking and formal assessment
+ - New sections: "Demystifying the routing" and "C++ platforms"
+ - Update and improve the part on visualization in MPI and Algo tutorials.
+ - Improve the section on routing: how to define it, how it's used internally
+ - Fix many issues, broken links and missing references in doxygen and Sphinx
+
+LUA:
+ - Lua platform files are deprecated. Their support will be dropped after v3.31.
+
+Simix:
+ - Legacy functions deprecated in this release: SIMIX_get_clock(), SIMIX_run().
+
+Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
+ (FG: issues on Framagit; GH: issues on GitHub)
+ - FG#47: Complete and fix tests from teshuite/s4u/activity-lifecycle
+ - FG#64: Configuring smpi/IB-penalty-factors
+ - FG#67: Running computation concurrently with MPI_Iallreduce
+ - FG#69: Tutorial misleading users of pre-v3.26 versions of SimGrid
+ - FG#71: Segmentation fault on invalid gw_src/gw_dst
+ - GH#322: Issue when an actor kills his host vm
+
+----------------------------------------------------------------------------
+
+SimGrid (3.27) March 29. 2021
+
+The Ragnar Release (anniversary of the siege of Paris by Vikings in 845)
+
+Main user-visible changes:
+ - All functions marked as deprecated for one year were removed.
+ - Removed all that was related to the "Storage" type in all APIs and bindings.
+ "Disks" have been introduced more than a year ago to replace them for the better.
+ It's time to finish this replacement.
+ - SMPI ABI breaks from previous version: MPI global handles (predefined datatypes,
+ ops, COMM_WORLD) are now defined differently, and can be used in initializers,
+ avoiding "initializer element is not constant" errors with some codes. Please be
+ careful to recompile your MPI codes if switching to this new SimGrid version.
+ - Network model ns-3 now requires version ns-3.28 or higher.
- Removed some option aliases that were deprecated since v3.23 (June 2019)
- 'verbose-exit' is now 'debug/verbose-exit'
- 'simix/breakpoint' is now 'debug/breakpoint'
- 'clean-atexit' is now 'debug/clean-atexit'
S4U:
+ - New functions: Comm::sendto_{init,async} to initiate a communication
+ on between two (possibly remote) hosts.
- Define new template functions Mailbox::get_unique(), returning a std::unique_ptr.
- Functions Mailbox::get() and Mailbox::get_async() are now templated with the
type of the pointee. Untyped functions are deprecated. Use Mailbox::get<void>()
or Mailbox::get_async<void>() if you really want to play with void*.
- Unify the interface of Activity::on_{start/activity}
- New function: Comm::get_dst_data()
- - New functions: Comm::sendto_{init,async} to initiate a communication
- on between two (possibly remote) hosts.
+ - New function: Comm::set_payload_size() to set the amount of bytes to simulate.
+
+Models:
+ - ptask should now work better with multicore hosts (FG#37).
+ - Internal cleanups and refactoring around activities, to prepare for SimDAG++.
+ - Internal cleanups and refactoring around models, to prepare for programmatic
+ platform creation.
+ - Modernize our tests of the performance models
+
+Documentation:
+ - User manual:
+ - New section: Configuring the logs from the command line.
+ - New section: Programming API of logs.
+ - New section: Getting realistic results
+ - New section: Examples of SMPI Usage
+ - New part: SimGrid's Internals, with a section on Design goals
+ - Move back to the classical Breathe tool chain, and fix many small glitches.
+
+SMPI:
+ - Handle leak checking: SMPI will now display a message if MPI handles are still
+ present at the end of a simulation. Option smpi/list-leaks:n will display the n
+ first leaked pointers and their types.
+ - smpi/display-allocs option : Display Memory allocations analysis, with hints
+ about the largest allocations. This only works for allocations with malloc/calloc
+ and not compiled with SMPI_NO_OVERRIDE_MALLOC
+ - "-analyze" option in smpirun will activate smpi/display-allocs and smpi/display-timing
+ - New implemented MPI calls: MPI_File_set_size, MPI_Aint_add, MPI_Aint_diff,
+ MPI_Type_get_extent_x, MPI_Type_get_true_extent_x, MPI_Status_set_elements_x
+ - Support for MPI C++ datatypes (MPI_CXX_BOOL, MPI_CXX_FLOAT_COMPLEX,
+ MPI_CXX_DOUBLE_COMPLEX, MPI_CXX_LONG_DOUBLE_COMPLEX)
+ - Replay now opens and parses the trace file only once for all ranks when possible.
+ - Misc fixes:
+ - better handling of MPI_PROC_NULL
+ - MPI_Group_incl was broken in some cases
+ - PAPI tracing now fixed
+ - MPI_Errhandlers are properly handled for MPI_COMM_WORLD
+ - SMPI will now fail properly when receive size < sent size, instead of
+ just setting MPI_ERR_TRUNCATE and keep going.
+ - Proxy Apps ( https://framagit.org/simgrid/SMPI-proxy-apps ):
+ - Remove useless build patches and split build/run patches on the page
+ - Build in parallel when possible
+ - Test on yum-based systems
+ - New nightly tested Proxy-apps:
+ - OpenMPI mpi-test-suite
+ - Coral MCB, LSMS, Qbox, CLOMP
+ - ECP/Mantevo Cloverleaf3D, Ember
+ - Codevault bhtree_mpi
+
+Model checker:
+ - Only initialize the Dwarf parser when needed, saving 10 seconds in most cases.
+ - Start to overhaul the implementation to modernize it (still ongoing).
+
+XBT:
+ - Drop simgrid::xbt::demangle(). Please use boost::core::demangle() instead.
+ - Drop xbt_dynar_cursor_rm(), xbt_dynar_search_or_negative(),
+ xbt_str_split_quoted(), xbt_str_split_quoted_in_place().
+ - Deprecate xbt_dynar_to_array().
+ - When an exception occurs in kernel mode, display both the actor and kernel stacks.
+
+C binding and interface:
+ - Rename (lowercase) functions sg_actor_get_PID, sg_actor_get_PPID, sg_actor_by_PID.
+ - Constness requirement has been lowered for parameter argv of sg_actor_start()
+ and sg_actor_create() It's now (char* const*). The previous version is still
+ available as sg_actor_start_() and sg_actor_create_().
+
+Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
+ (FG: issues on Framagit; GH: issues on GitHub)
+ - FG#37: Parallel tasks are limited to 1 core per host
+ - FG#62: Running "smpirun -replay" on large networks
+ - FG!46: Fix a few potential memory leaks in SMPI colls
+ - GH#343: Wrong consumed energy when an exec timeouts
----------------------------------------------------------------------------
allocations' size above which they are considered "shared" by default (as if
they were performed through SMPI_SHARED_MALLOC macros).
Default = 0 = disabled feature.
- Note : malloc, calloc and free are now overriden by smpicc/cxx by default.
+ Note : malloc, calloc and free are now overridden by smpicc/cxx by default.
This can cause some troubles if codes are already overriding these. If this
is the case, defining SMPI_NO_OVERRIDE_MALLOC in the compilation flags can
help, but will make this feature unusable.
