mpif-h: fix request_get_status when MPI_STATUS_IGNORE is passed#13733
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janjust wants to merge 1 commit intoopen-mpi:v4.1.xfrom
Open
mpif-h: fix request_get_status when MPI_STATUS_IGNORE is passed#13733janjust wants to merge 1 commit intoopen-mpi:v4.1.xfrom
janjust wants to merge 1 commit intoopen-mpi:v4.1.xfrom
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The Fortran mpif-h binding for MPI_Request_get_status incorrectly returned flag=false when MPI_STATUS_IGNORE was passed, without ever checking request completion. Always call PMPI_Request_get_status to get the correct flag value, and only conditionally copy the status back. This is the mpif-h counterpart to 95e4599 which fixed the same bug in the use-mpi-f08 .c.in template. Related to issue open-mpi#13671 Signed-off-by: Tomislav Janjusic <tomislavj@nvidia.com> Co-authored-by: Howard Pritchard <howardp@lanl.gov> (cherry picked from commit fb77662)
hppritcha
approved these changes
Feb 13, 2026
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The Fortran mpif-h binding for MPI_Request_get_status incorrectly returned flag=false when MPI_STATUS_IGNORE was passed, without ever checking request completion. Always call PMPI_Request_get_status to get the correct flag value, and only conditionally copy the status back.
This is the mpif-h counterpart to 95e4599 which fixed the same bug in the use-mpi-f08 .c.in template.
Related to issue #13671
(cherry picked from commit fb77662)