Use MPI independent I/O when number of processes is 1 #149
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Check if the number of processes is 1. If this is the case, call only the MPI independent I/O functions. In addition, it avoids calls to MPI_Barrier, MPI_Bcast, and MPI_Allreduce.
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Check if the number of processes is 1. If this is the case, call only the MPI independent I/O functions. In addition, it avoids calls to MPI_Barrier, MPI_Bcast, and MPI_Allreduce.