MPI_Comm_size
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Determines the size of the group associated with a communicator.
r = MPI_Comm_size(Comm)
Comm - a MPI_Comm object.
r - an integer value: number of processes in the group of Comm.
Determines the size of the group associated with a communicator.
.
mpiexec([modulepath('mpi'), '/examples/MPI_helloworld.m'], 4)
1.0.0
initial version
Allan CORNET