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include mpif.h
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Call
MPI_xxx(…,ierr)
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Case insensitive
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Array storage column
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major
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a(1,1),a(2,1),a(3,1)…
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contiguous
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#include mpi.h
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rc = mpi_xxx(….)
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rc = MPI_SUCCESS
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Case sensitive
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Array storage row
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major
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a(1,1),a(1,2),a(1,3)…
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contiguous
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