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abstract away use of MPI communicators (ie make MPI_COMM_WORLD optional) #151

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jeffhammond opened this issue Nov 3, 2019 · 0 comments
Open

abstract away use of MPI communicators (ie make MPI_COMM_WORLD optional) #151

jeffhammond opened this issue Nov 3, 2019 · 0 comments
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Using MPI_COMM_WORLD is bad, although it doesn't matter much in GA/ARMCI applications that do not use MPI directly.

We should abstract away the use of communicators in GA/ARCMI so that applications can initialize GA/ARMCI as proper MPI libraries.

I have implemented this in ARMCI-MPI already: pmodels/armci-mpi#26.
@jeffhammond jeffhammond self-assigned this Nov 3, 2019
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