MPICartcoords(3OpenMPI) MPICartcoords(3OpenMPI)

NAME
       MMPPIICCaarrttccoooorrddss - Determines process coords in Cartesian topology given
       rank in group.


SSYYNNTTAAXX
CC SSyynnttaaxx
       #include 
       int MPICartcoords(MPIComm comm, int rank, int maxdims,
            int *coords)


FFoorrttrraann SSyynnttaaxx
       INCLUDE 'mpif.h'
       MPICARTCOORDS(COMM, RANK, MAXDIMS, COORDS, IERROR)
            INTEGER   COMM, RANK, MAXDIMS, COORDS(*), IERROR


CC++++ SSyynnttaaxx
       #include 
       void Cartcomm::Getcoords(int rank, int maxdims,
            int coords[]) const


IINNPPUUTT PPAARRAAMMEETTEERRSS
       comm      Communicator with Cartesian structure (handle).

       rank      Rank of a process within group of comm (integer).

       maxdims    Length of vector coord in the calling program (integer).


OOUUTTPPUUTT PPAARRAAMMEETTEERRSS
       coords    Integer  array  (of   size   ndims,which   was   defined   by
                 MPICartcreate call) containing the Cartesian coordinates of
                 specified process (integer).

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       The inverse mapping, rank-to-coordinates  translation  is  provided  by
       MPICartcoords.


EERRRROORRSS
       Almost  all MPI routines return an error value; C routines as the value
       of the function and Fortran routines in the last  argument.  C++  func-
       tions  do  not  return  errors.  If the default error handler is set to
       MPI::ERRORSTHROWEXCEPTIONS, then on error the C++ exception mechanism
       will be used to throw an MPI:Exception object.

       Before  the  error  value is returned, the current MPI error handler is
       called. By default, this error handler aborts the MPI job,  except  for
       I/O   function   errors.   The   error  handler  may  be  changed  with
       MPICommseterrhandler; the predefined error handler MPIERRORSRETURN
       may  be  used  to cause error values to be returned. Note that MPI does
       not guarantee that an MPI program can continue past an error.




Open MPI 1.2                    September 2006       MPICartcoords(3OpenMPI)