[mpiwg-tools] question about MPI_T_EVENT_GET_INFO

Martin Schulz schulzm at in.tum.de
Wed Feb 10 16:11:40 CST 2021

Hi Ken,

Thanks for pointing this out - I think you are correct. At least on the PVAR side, that's how it was intended. I would assume, the same should be true for the events as well - Marc-Andre, do you agree?



Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems
Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching
Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ)
Email: schulzm at in.tum.de

On 10.02.21, 22:48, "mpiwg-tools on behalf of Raffenetti,	Kenneth J. via mpiwg-tools" <mpiwg-tools-bounces at lists.mpi-forum.org on behalf of mpiwg-tools at lists.mpi-forum.org> wrote:

    Hi all,

    In the latest mpi-4.0 RC pg 758, ln 16 describing MPI_T_EVENT_GET_INFO:

       If the argument to enumtype provided by the user is the MPI_T_ENUM_NULL pointer, no enumeration type is returned.

    This differs from previous get info functions. E.g. MPI_T_PVAR_GET_INFO:

       ... or the argument enumtype is the null pointer, no enumeration type is returned.

    IMO, the user providing MPI_T_ENUM_NULL to enumtype doesn't make sense. The user would pass a null pointer, as it is an output argument.


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