MPI_Comm_spawn_multiple

MPI_Comm_spawn_multiple(3)            MPI           MPI_Comm_spawn_multiple(3)



NAME
       MPI_Comm_spawn_multiple -  short description

SYNOPSIS
       int MPI_Comm_spawn_multiple(int count, char *array_of_commands[],
                                 char **array_of_argv[], const int array_of_maxprocs[],
                                 const MPI_Info array_of_info[], int root, MPI_Comm comm,
                                 MPI_Comm *intercomm, int array_of_errcodes[])

INPUT PARAMETERS
       count  - number of commands (positive integer, significant to MPI only
              at root
       array_of_commands
              - programs to be executed (array of strings, significant only at
              root)
       array_of_argv
              - arguments for commands (array of array of strings, significant
              only at root)
       array_of_maxprocs
              - maximum number of processes to start for each command (array
              of integer, significant only at root)
       array_of_info
              - info objects telling the runtime system where and how to start
              processes (array of handles, significant only at root)
       root   - rank of process in which previous arguments are examined
              (integer)
       comm   - intracommunicator containing group of spawning processes
              (handle)


OUTPUT PARAMETERS
       intercomm
              - intercommunicator between original group and newly spawned
              group (handle)
       array_of_errcodes
              - one error code per process (array of integer)


NOTES FOR FORTRAN
       All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have
       an additional argument ierr at the end of the argument list.  ierr is
       an integer and has the same meaning as the return value of the routine
       in C.  In Fortran, MPI routines are subroutines, and are invoked with
       the call statement.

       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in
       Fortran.


ERRORS
       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 last argument.  Before the value is returned, the current MPI error
       handler is called.  By default, this error handler aborts the MPI job.
       The error handler may be changed with MPI_Comm_set_errhandler (for
       communicators), MPI_File_set_errhandler (for files), and
       MPI_Win_set_errhandler (for RMA windows).  The MPI-1 routine
       MPI_Errhandler_set may be used but its use is deprecated.  The
       predefined error handler MPI_ERRORS_RETURN may be used to cause error
       values to be returned.  Note that MPI does not guarentee that an MPI
       program can continue past an error; however, MPI implementations will
       attempt to continue whenever possible.

       MPI_SUCCESS
              - No error; MPI routine completed successfully.
       MPI_ERR_COMM
              - Invalid communicator.  A common error is to use a null
              communicator in a call (not even allowed in MPI_Comm_rank ).
       MPI_ERR_ARG
              - Invalid argument.  Some argument is invalid and is not
              identified by a specific error class (e.g., MPI_ERR_RANK ).
       MPI_ERR_INFO
              - Invalid Info
       MPI_ERR_SPAWN
              -

LOCATION
       src/mpi/spawn/comm_spawn_multiple.c



                                   4/24/2013        MPI_Comm_spawn_multiple(3)