MPI_Cart_sub
--- Partitions a communicator into subgroups which
form lower-dimensional cartesian subgrids
Input Parameters
- comm
- communicator with cartesian structure (handle)
- remain_dims
- the i th entry of remain_dims specifies whether the i th
dimension is kept in the subgrid ( true ) or is dropped ( false ) (logical
vector)
Output Parameter
- newcomm
- communicator containing the subgrid that includes the calling
process (handle)
Synopsis
#include "mpi.h"
int MPI_Cart_sub ( comm, remain_dims, comm_new )
MPI_Comm comm;
int *remain_dims;
MPI_Comm *comm_new;
Location: cart_sub.c