+SimGrid (3.28.1) NOT RELEASED YET (v3.29 expected September 22. 2021, 19:21 UTC)
+
+New features:
+ - Non-linear resource sharing: allows to dynamically change the resource
+ capacity. Users can change this capacity by setting a callback which will
+ be called when SimGrid is sharing the resource between the active
+ activities. An activity can be a task running, a read/write IO operation or a
+ communication flow.
+ - Callback signature: double (double capacity, int n_activities): given the
+ current resource's capacity and number of activities running on it,
+ returns the new capacity.
+ - Note that this callback is in the critical path of the system solve and
+ should not take long to execute.
+ - Examples:
+ - Disk: examples/cpp/io-degradation
+ - Link: examples/cpp/network-nonlinear
+ - CPU: examples/cpp/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
+
+S4U:
+ - New: s4u::Disk::set_sharing_policy() and s4u::Host::set_sharing_policy().
+ Allows the configuration of non-linear resource sharing for hosts and
+ disks.
+
+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.
+
+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++.
+ 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).