X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/94b9b9a993d99cd83f8299227ed6e89bca99924f..b59417738c8cf11f1804269c65a4738bbf43c150:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 909594f089..13e0736676 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,53 @@
 ----------------------------------------------------------------------------
 
-SimGrid (3.27.1) NOT RELEASED YET (v3.28 expected June 21. 2021, 03:32 UTC)
+SimGrid (3.28.1) NOT RELEASED YET (v3.29 expected September 22. 2021, 19:21 UTC)
+
+New modeling features:
+ - Non-linear resource sharing for decay models:
+   - The total capacity may depend on the number of concurrent usages
+   - For that, resources can take a callback that computes the capacity 
+     depending on the idle capacity and the number of concurrent usages
+   - Examples (both cpp and python): io-degradation, network-nonlinear, exec-cpu-nonlinear
+
+ - Dynamic factors for CPU and disk: similarly to dynamic network factors,
+   allows the user to set a callback which can affect the progress of activities
+   (multiplicative factor applied when updating the amount of work remaining).
+   - Example: examples/cpp/exec-cpu-factors
+
+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.
+
+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.
+
+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; GF: issues on GForge; GH: issues on GitHub)
+ - 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.
+ - FG#77: Search feature of doc is broken (update sphinx theme version)
+----------------------------------------------------------------------------
+
+SimGrid (3.28) July 14. 2021
+
+The Victoriadagarna Release.
 
 New features:
  - C++ platform interface: Users can now describe their platform directly in C++.
@@ -27,6 +74,7 @@ S4U:
    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.
@@ -83,6 +131,17 @@ Models:
    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.
@@ -90,6 +149,9 @@ XBT:
 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.