[Mpi-forum] MPI_Comm_split_type question

[Guillaume Mercier]

Hello,

When using the MPI_Comm_split_type function, the number of new
communicators created is unknown.  However this information
could be useful to distribute data across various "domains"
(where each domain would be represented by such a communicator).
Is there a simple (or even a not-so-simple) way to get this
information?

Thanks.
Guillaume Mercier