Thanks for the bug report!
I have no idea how this slipped through the cracks, but IN_PLACE support for
MPI_ALLTOALL seems to be missing. :-(
I've filed a bug about it: https://svn.open-mpi.org/trac/ompi/ticket/2965.
On Jan 18, 2012, at 4:38 PM, David Race wrote:
> One of our users makes use
One of our users makes use of the MPI_IN_PLACE option, but there appears to be
a bug in the MPI_Alltoall. According to the specification -
The “in place” option for intracommunicators is specified by passing
MPI_IN_PLACE to
the argument sendbuf at all processes. In such a case, sendcount and s
