On Thu, Jul 17, 2008 at 05:29:36PM -0400, Richard Treumann wrote:
> It is clear that if the matching
> RECV has completed then the unaltered content of the ISEND buffer is no
> longer needed.
This isn't clear to me. There's certainly no promise of that in the
MPI-1 standard text on the web. That's why I said I thought it should
be undefined. This is "spooky action at a distance" for me. We
shouldn't encourage it.
And I still think it's the same can of worms as MPI_Cancel. If
MPI_Cancel works, then an RDMA-using MPI can simple call it at the
start of the request_free call.
-- greg
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