MPICH info stuff + MPI_Get_library_version

pmodels / armci-mpi

An implementation of ARMCI using MPI one-sided communication (RMA)

Other

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Closed jeffhammond closed 2 years ago

jeffhammond commented 2 years ago

Summary:

query MPI_Get_library_version to help debugging and correctness issues
add MPICH info keys (e.g. disable_shm_accumulate), with env var control where appropriate

@hzhou Can you review this? It should be very quick.