#include "mpi.h" int MPI_Cart_get ( comm, maxdims, dims, periods, coords ) MPI_Comm comm; int maxdims; int *dims, *periods, *coords;
comm  communicator with cartesian structure (handle)
 
maxdims  length of vectors dims, periods, and coords
in the calling program (integer)

dims  number of processes for each cartesian dimension (array of integer)
 
periods  periodicity (true/false) for each cartesian dimension
(array of logical)
 
coords  coordinates of calling process in cartesian structure
(array of integer)

All MPI objects (e.g., MPI_Datatype, MPI_Comm) are of type INTEGERin Fortran.
All MPI routines (except MPI_Wtime and MPI_Wtick) return an error value; C routines as the value of the function and Fortran routines in the lastargument. Before the value is returned, the current MPI error handler iscalled. By default, this error handler aborts the MPI job. The error handlermay be changed with MPI_Errhandler_set; the predefined error handlerMPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarentee that an MPI program can continue pastan error.
Location:cart_get.c