MPI binding for MPI_COMM_RANK

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Neutral Binding
MPI_COMM_RANK(comm, rank) [ IN comm] communicator (handle) [ OUT rank] rank of the calling process in group of comm (integer)

C Binding
int MPI_Comm_rank(MPI_Comm comm, int *rank)

FORTRAN Binding
MPI_COMM_RANK(COMM, RANK, IERROR) INTEGER COMM, RANK, IERROR

C++ Binding
(in the MPI:: namespace)
int Comm::Get_rank() const