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sched: return the receive status for MPI_Isendrecv - #8032
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When the receive entry of an MPI_Isendrecv or MPI_Isendrecv_replace schedule completes, copy its source, tag, count, and cancel bit into the schedule request so MPI_Wait/MPI_Test report them. Previously the status returned to the user was left unset. Fixes pmodels#8005 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Pull Request Description
MPI_IsendrecvandMPI_Isendrecv_replaceare implemented as a schedule, and the receive entry's status was never copied to the schedule request, soMPI_Wait/MPI_Testreturned an unset status (garbage source, tag, and count).This copies the receive's source, tag, count, and cancel bit into the schedule request when the receive entry completes. Thanks to @peatman for reporting the issue in #8005 and suggesting the fix.
MPIR_CVAR_ODD_EVEN_CLIQUES=1)Fixes #8005
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