SimGrid (3.3.2-svn) unstable; urgency=low
+ The "Simplicity does not preceed complexity, but follows it" release.
+
+ The main contributors of this release were (lexical order):
+ Silas De Munck, Stéphane Genaud, Martin Quinson, Cristian Rosa.
+
SMPI:
* Implement some more MPI primitives:
- MPI_Waitany, MPI_Waitall, MPI_Reduce, MPI_Allreduce
+ MPI_Bcast, MPI_Waitany, MPI_Waitall, MPI_Reduce, MPI_Allreduce, MPI_Scatter, MPI_Sendrecv, MPI_Alltoall
+ -implementation: Bcast: flat or 2-ary tree (default),
+ Barrier: 4-ary tree,
+ Reduce: flat tree
+ Allreduce: Reduce then Bcast
+ Alltoall: "basic_linear" if data per proc < 3Kb, "otherwise pairwise".
+ Not yet implemented: "Bruck" for data per proc < 200b and comm size > 12
+ Alltoallv: flat tree, like ompi
+ Scatter: flat tree
* Add support for optimized collectives (Bcast is now binomial by default)
* Port smpirun and smpicc to OS X
+ SIMIX:
+ * Relocation of the context module from XBT to SIMIX.
+ (the context were decoupled from the simix processes, duplicating a lot of code)
+ => a lot of code was factorized
+ - less overhead is introduced during scheduling
+ - simpler API for the context factory
+ - the logic for process creation,destruction and manipulation was simplified
+ * Simplification of the s_smx_process_t data structure.
+ => accesing the simix level data associated to a process is faster now,
+ and the code is a lot more readable.
+
SURF:
* Extract the routing logic into its own object.
(was dupplicated in network.c and workstation_LV07.c;
- Use dynar to represent routes (instead of void** + int*)
- kill link_set (use surf_network_model->resource_set instead)
- Add a command-line option to choose the routing schema to use
+ - Add three new models:
+ * Floyd (shortest path computed at initialization)
+ * Dijikstra (shortest path recomputed all the time)
+ * Cached Dijikstra (shortest path computed on need)
+ All these models where contributed by Silas De Munck, and are
+ described in his ICCS09 paper.
* Simplify model declaration
(less redirections, less function to write when defining a model)
* Add xbt_graph_node_get_outedges() [Silas De Munck]
* Add xbt_str_from_file(FILE*)
* Add xbt_dict_get_key achieving a linear reverse search
-
+ * Remove the context module [Cristian Rosa]
+
-- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
SimGrid (3.3.1) stable; urgency=low
