X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ea10e88fd41a11386d9e3868d72ab8cb933a4292..ee895f75bcbf3a77f99c5bea9787ed5e4ab228f2:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 1c5f22d1f5..6e8287fb63 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,10 +1,144 @@
-SimGrid (3.31.1) NOT RELEASED YET (v3.32 expected June 21. 2022, 09:13 UTC)
+SimGrid (3.32.1) not released yet (target december 22)
+
+General:
+ - Remove the MSG API: its EOL was scheduled for 2020.
+ - Remove the Java bindings: they were limited to the MSG interface.
+ - On Windows, you now need to install WSL2 as the native builds are now disabled.
+   It was not really working anyway.
+
+S4U:
+ - Activity::set_remaining() is not public anymore. Use for example
+   Comm::set_payload_size() to change the size of the simulated data.
+
+Kernel:
+ - optimize an internal datastructure, leading to a potentially big
+   performance gain (in particular with many detached comms)
+
+MPI:
+ - New option smpi/barrier-collectives to add a barrier to some collectives
+   to detect dangerous code that /may/ work on some MPI implems.
+
+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.
+   - 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
+   - See also "A Flow-Level Wi-Fi Model for Large Scale Network Simulation"
+     https://hal.archives-ouvertes.fr/hal-03777726
+ - Merge parameters network/bandwidth-factor and smpi/bw-factor that serve the same purpose.
+   - Same for the latency
+   - Rewrite the corresponding documentation.
+
+sthread:
+ - Implement pthread_join in MC mode.
+
+Documentation:
+ - New section in the user guide on the provided performance models.
+ - New section presenting some technical good practices for (potential) contributors.
+
+Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
+ (FG: issues on Framagit; GH: issues on GitHub)
+ - FG#18: Java bindings should be redone or removed
+ - FG!118: Wi-Fi callback mechanism
+ - FG!119: SMPI: add option to inject a barrier before every collective call, to allow...
 
 ----------------------------------------------------------------------------
 
+SimGrid (3.32) October 3. 2022.
+
+The Wiedervereinigung release. Germany was reunited 32 years ago.
+
+General:
+ - SimGrid now requires a compiler with C++17 support to compile the lib.
+   Our public headers still allow the user code to be compiled in C++14.
+ - Support graphviz v3 and ns-3 v3.36 (older versions are still supported).
+ - Tested with clang (v11, v13, v14 and v16), gcc (v7 to v13) and IntelCC v2022.2
+
 S4U:
- - kill signal Comm::on_completion that was not working anyway.
- - Expose signals Activity::on_suspend and Activity::on_resume
+ - API evolutions:
+   - kill signal Comm::on_completion that was not working anyway.
+   - Expose signals Activity::on_suspend and Activity::on_resume
+   - New macro xbt_enforce(): similar to xbt_assert(), but throws an AssertionError
+     instead of calling abort().
+   - New: s4u::Exec::get_thread_count()
+ - Various cleanups around virtual machines:
+   - host_by_name() and friends now only return hosts. VMs are now excluded.
+   - It is now impossible to search a VM by name globally.
+     You can only search VM by name on a given PM, so either you know
+     the PM on which your VM runs and you can search by name, or you need
+     to manually iterate over all PMs to search this VM.
+   - The s4u::VirtualMachine constructor is now deprecated.
+     Please use s4u::Host::create_vm() instead.
+   - Rename s4u::VirtualMachine::on_creation() to on_vm_creation() to
+     avoid confusion with s4u:Host::on_creation() that is inherited.
+     Also s4u::VirtualMachine::on_destruction -> on_vm_destruction().
+ - Bug fixes:
+   - One-sided communications (Comm::sendto) can now be detached,
+     and should now be more resilient to network and host faults.
+
+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/]
+     - Engine.set_config
+   - Mailbox: Mailbox.ready [example: examples/python/comm-ready/]
+   - Ptask [example: examples/python/exec-ptask/]:
+     - this_actor.exec_init
+     - this_actor.parallel_execute
+     - Exec.suspend
+     - Exec.wait_for
+ - Added an AssertionError exception that may be thrown in case of error.
+   For instance, creating two hosts with the same name will now throw this exception
+   instead of killing the interpreter.
+
+SMPI:
+ - Implement MPI_File_get_type_extent(), MPI_File_s/get_atomicity() and
+   MPI_File_get_byte_offset()
+ - Intercept getpid() calls to return the simulated ones.
+ - Fix various bugs in MPI IO.
+
+Platform description & visualization:
+ - More robust sanity checks for platforms, to reject forbidden topologies with
+   a proper error message.
+ - New platform example: supernode.cpp and supernode.py.
+   The Python version generates a nice graphical representation of the platform.
+ - Bug fixes around fat-tree topologies.
+ - Allow to dump the platform topology as a CSV file representing the graph edges
+   with platform_graph_export_csv() (similar to the DOT export).
+ - Fix graphicator for "cluster" topologies (e.g. fat-tree, dragonfly).
+
+Models:
+ - Fix a bug when using ptasks with multicores (FG!111).
+
+Model-Checker:
+ - First bits of sthread, that intercepts pthread operations at runtime.
+   The intend is to use it together with simgrid-mc, but it is TBD.
+ - Sync MBI generators with upstream changes.
+ - Various cosmetics, small bug fixes and inner refactorings
+
+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
+ - FG#109: Application time reported by --cfg=smpi/display-timing:yes is wrong
+ - FG#110: Wait_any does not trigger new model solve when host events occur
+ - FG#111: Wrong execution time in rare cases when using multicore
+ - FG!98: Re-enable the tests for legacy stochastic profiles
+ - FG!109: Trigger new engine solve upon host events such as host on/off
+ - FG!116: SMPI/replay: Fix issue with recv of size =0
+
+----------------------------------------------------------------------------
 
 SimGrid (3.31) March 22. 2022.
 
@@ -12,7 +146,6 @@ 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
@@ -107,7 +240,6 @@ Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
  - 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
 
 ----------------------------------------------------------------------------
 
@@ -193,7 +325,6 @@ 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