X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/69659a8281d4aeac3476820299f26a09dd285996..33a2dd5a405effecfbc7a26d7a84664902a2432a:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 191b780b9b..c3c960cb44 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,13 @@
 SimGrid (3.30.1) NOT RELEASED YET (v3.31 expected March 20. 2022, 15:33 UTC)
 
+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 
+ - 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.
@@ -21,12 +26,12 @@ SMPI:
 
 S4U:
  - New signal: Engine::on_simulation_start_cb()
- - Introduce a new execution mode with this_actor::thread_execute(). This simulate 
+ - 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. 
+ - 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.
 
@@ -34,34 +39,31 @@ 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, 
+ - 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 model for parallel task: ptask_BMF.
-   - More realistic sharing of heterogeneous resources compared to ptask_L07.
+ - 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).
+     communications between same source and destination inside the ptask).
    - Parameters:
-     - "--cfg=host/model:ptask_BMF": enable the model.
-     - "--cfg=bmf/max-iterations: <N>" - maximum number of iterations performed
-	     by BMF solver (default: 1000).
-	 - "--cfg=bmf/selective-update:<true/false>" - enable/disable the
-	    selective-update optimization. Only invalidates and recomputes modified
-	    parts of inequations system. May speed up simulation if sparse resource
-	    utilization (default: false).
-   - ATTENTION: this model requires Eigen3 library. If you install SimGrid
-     from source, please see the "Installing from source" section:
-     https://simgrid.org/doc/latest/Installing_SimGrid.html#installing-from-the-source.
-     No action is required if you use pre-compiled packages.
+     - "--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 
+  - 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 
+    - Fix initial behaviour of state_profiles
     - Modify periodicity to behave like a period, and not like a loop delay
 
 XBT:
@@ -81,6 +83,7 @@ Python:
      - 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.