|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
<HTML>
|
|
Packit Service |
c5cf8c |
<HEAD>
|
|
Packit Service |
c5cf8c |
<META NAME="GENERATOR" CONTENT="DOCTEXT">
|
|
Packit Service |
c5cf8c |
<TITLE>MPI_Comm_spawn_multiple</TITLE>
|
|
Packit Service |
c5cf8c |
</HEAD>
|
|
Packit Service |
c5cf8c |
<BODY BGCOLOR="FFFFFF">
|
|
Packit Service |
c5cf8c |
MPI_Comm_spawn_multiple
|
|
Packit Service |
c5cf8c |
short description
|
|
Packit Service |
c5cf8c |
Synopsis
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
int MPI_Comm_spawn_multiple(int count, char *array_of_commands[],
|
|
Packit Service |
c5cf8c |
char **array_of_argv[], const int array_of_maxprocs[],
|
|
Packit Service |
c5cf8c |
const MPI_Info array_of_info[], int root, MPI_Comm comm,
|
|
Packit Service |
c5cf8c |
MPI_Comm * intercomm, int array_of_errcodes[])
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
Input Parameters
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
count number of commands (positive integer, significant to MPI only at
|
|
Packit Service |
c5cf8c |
root
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
array_of_commands programs to be executed (array of strings, significant
|
|
Packit Service |
c5cf8c |
only at root)
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
array_of_argv arguments for commands (array of array of strings,
|
|
Packit Service |
c5cf8c |
significant only at root)
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
array_of_maxprocs maximum number of processes to start for each command
|
|
Packit Service |
c5cf8c |
(array of integer, significant only at root)
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
array_of_info info objects telling the runtime system where and how to
|
|
Packit Service |
c5cf8c |
start processes (array of handles, significant only at root)
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
root rank of process in which previous arguments are examined (integer)
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
comm intracommunicator containing group of spawning processes (handle)
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
Output Parameters
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
intercomm intercommunicator between original group and newly spawned group
|
|
Packit Service |
c5cf8c |
(handle)
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
array_of_errcodes one error code per process (array of integer)
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
Notes for Fortran
|
|
Packit Service |
c5cf8c |
All MPI routines in Fortran (except for <tt>MPI_WTIME</tt> and <tt>MPI_WTICK</tt>) have
|
|
Packit Service |
c5cf8c |
an additional argument <tt>ierr</tt> at the end of the argument list. <tt>ierr
|
|
Packit Service |
c5cf8c |
</tt>is an integer and has the same meaning as the return value of the routine
|
|
Packit Service |
c5cf8c |
in C. In Fortran, MPI routines are subroutines, and are invoked with the
|
|
Packit Service |
c5cf8c |
<tt>call</tt> statement.
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
All MPI objects (e.g., <tt>MPI_Datatype</tt>, <tt>MPI_Comm</tt>) are of type <tt>INTEGER
|
|
Packit Service |
c5cf8c |
</tt>in Fortran.
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
Errors
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
All MPI routines (except <tt>MPI_Wtime</tt> and <tt>MPI_Wtick</tt>) return an error value;
|
|
Packit Service |
c5cf8c |
C routines as the value of the function and Fortran routines in the last
|
|
Packit Service |
c5cf8c |
argument. Before the value is returned, the current MPI error handler is
|
|
Packit Service |
c5cf8c |
called. By default, this error handler aborts the MPI job. The error handler
|
|
Packit Service |
c5cf8c |
may be changed with <tt>MPI_Comm_set_errhandler</tt> (for communicators),
|
|
Packit Service |
c5cf8c |
<tt>MPI_File_set_errhandler</tt> (for files), and <tt>MPI_Win_set_errhandler</tt> (for
|
|
Packit Service |
c5cf8c |
RMA windows). The MPI-1 routine <tt>MPI_Errhandler_set</tt> may be used but
|
|
Packit Service |
c5cf8c |
its use is deprecated. The predefined error handler
|
|
Packit Service |
c5cf8c |
<tt>MPI_ERRORS_RETURN</tt> may be used to cause error values to be returned.
|
|
Packit Service |
c5cf8c |
Note that MPI does not guarentee that an MPI program can continue past
|
|
Packit Service |
c5cf8c |
an error; however, MPI implementations will attempt to continue whenever
|
|
Packit Service |
c5cf8c |
possible.
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
MPI_SUCCESS No error; MPI routine completed successfully.
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
MPI_ERR_COMM Invalid communicator. A common error is to use a null
|
|
Packit Service |
c5cf8c |
communicator in a call (not even allowed in <tt>MPI_Comm_rank</tt>).
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
MPI_ERR_ARG Invalid argument. Some argument is invalid and is not
|
|
Packit Service |
c5cf8c |
identified by a specific error class (e.g., <tt>MPI_ERR_RANK</tt>).
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
MPI_ERR_INFO Invalid Info
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
MPI_ERR_SPAWN
|
|
Packit Service |
c5cf8c |
|
|
Packit Service |
c5cf8c |
</BODY></HTML>
|