This function returns the size of the group using the given communicator. The general syntax for its use is
y = mpicommsize(comm)
where comm is the communicator to use. If no communicator
is provided, then MPI_COMM_WORLD is assumed.
Here is a simple example of using mpicommsize:
--> mpiinit
--> mpicommrank
ans =
<int32> - size: [1 1]
0