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Add support for get_name with predefined NULL objects. #13328

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@bosilca bosilca commented Jul 10, 2025

This PR complements #13276 to add support for MPI_*_get_name for predefined NULL objects (MPI_DATATYPE_NULL and MPI_WIN_NULL) as requested in MPI 4.1 chapter B 1.2 item 18.

Fixes #12079.

This PR complements open-mpi#13276 to add support for MPI_*_get_name for
predefined NULL objects (MPI_DATATYPE_NULL and MPI_WIN_NULL) as
requested in MPI 4.1 chapter B 1.2 item 18.

Fixes open-mpi#12079.

Signed-off-by: George Bosilca <[email protected]>
@bosilca bosilca added this to the v5.0.8 milestone Jul 10, 2025
@bosilca bosilca requested a review from edgargabriel July 10, 2025 11:37
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mpi4.1: allow MPI_COMM_NULL to be passed to MPI_Comm_get_name
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