[mpich-devel] win_shared_noncontig test

Lisandro Dalcin dalcinl at gmail.com
Tue Jun 17 03:51:46 CDT 2014

On 17 June 2014 01:55, Dave Goodell (dgoodell) <dgoodell at cisco.com> wrote:

> This OMPI bug may be of note to the MPICH community:
> https://svn.open-mpi.org/trac/ompi/ticket/4721
​From a user point of view, I do not like that behaviour. I agree that the
MPI implementation is free to allocate as much space it is convenient, but
the size it reports back after a query is a different story. Does the MPI
standard requires that the result query of the query is the exact allocated
size? If not, I see more convenient to return the requested-at-allocation-
time size the the allocated one. What's the use case of returning the exact
allocated size? After all, I guess users cannot rely on "extra space" being
available at the end of the buffer.

Lisandro Dalcin
Predio CONICET-Santa Fe
Colectora RN 168 Km 472, Paraje El Pozo
3000 Santa Fe, Argentina
Tel: +54-342-4511594 (ext 1016)
Tel/Fax: +54-342-4511169
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