MPI_Intercomm_merge

--- Creates an intracommuncator from an intercommunicator

Input Parameters

comm
Intercommunicator
high
Used to order the groups of the two intracommunicators within comm when creating the new communicator.

Output Parameter

comm_out
Created intracommunicator

Algorithm

1)
Allocate two contexts
2)
Local and remote group leaders swap high values
3)
Determine the high value.
4)
Merge the two groups and make the intra-communicator

Synopsis


#include "mpi.h"
int MPI_Intercomm_merge ( comm, high, comm_out )
MPI_Comm  comm;
int       high;
MPI_Comm *comm_out;

Location: ic_merge.c