tracing MPI collective operations implemented in SMPI
details:
- MPI Bcast, Barrier, Gather, Gather, Allgather,
Reduce, Scan, Reduce_scatter, Alltoall and
their 'v' variants
- the tracing is only a state for now
- the root rank is not used for now to identify
which process is the root of operation (for
those who have a root)
- the trace is visualizable in Paje and Triva (SquarifiedTreemap)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@8125
48e7efb5-ca39-0410-a469-
dd3cf9ba447f
