/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* (C) 2001 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpiimpl.h"
/* -- Begin Profiling Symbol Block for routine MPI_Comm_spawn_multiple */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Comm_spawn_multiple = PMPI_Comm_spawn_multiple
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Comm_spawn_multiple MPI_Comm_spawn_multiple
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Comm_spawn_multiple as PMPI_Comm_spawn_multiple
#elif defined(HAVE_WEAK_ATTRIBUTE)
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[])
__attribute__ ((weak, alias("PMPI_Comm_spawn_multiple")));
#endif
/* -- End Profiling Symbol Block */
/* Define MPICH_MPI_FROM_PMPI if weak symbols are not supported to build
the MPI routines */
#ifndef MPICH_MPI_FROM_PMPI
#undef MPI_Comm_spawn_multiple
#define MPI_Comm_spawn_multiple PMPI_Comm_spawn_multiple
/* Any internal routines can go here. Make them static if possible */
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Comm_spawn_multiple
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Comm_spawn_multiple - short description
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)
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_COMM
.N MPI_ERR_ARG
.N MPI_ERR_INFO
.N MPI_ERR_SPAWN
@*/
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[])
{
int mpi_errno = MPI_SUCCESS, i;
MPIR_Comm *comm_ptr = NULL;
MPIR_Comm *intercomm_ptr = NULL;
MPIR_Info **array_of_info_ptrs = NULL;
MPIR_CHKLMEM_DECL(1);
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_COMM_SPAWN_MULTIPLE);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_COMM_SPAWN_MULTIPLE);
/* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_COMM(comm, mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif
/* Convert MPI object handles to object pointers */
MPIR_Comm_get_ptr(comm, comm_ptr);
/* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
/* Validate comm_ptr */
MPIR_Comm_valid_ptr(comm_ptr, mpi_errno, FALSE);
/* If comm_ptr is not valid, it will be reset to null */
if (mpi_errno)
goto fn_fail;
MPIR_ERRTEST_COMM_INTRA(comm_ptr, mpi_errno);
MPIR_ERRTEST_RANK(comm_ptr, root, mpi_errno);
if (comm_ptr->rank == root) {
MPIR_ERRTEST_ARGNULL(array_of_commands, "array_of_commands", mpi_errno);
MPIR_ERRTEST_ARGNULL(array_of_maxprocs, "array_of_maxprocs", mpi_errno);
MPIR_ERRTEST_ARGNONPOS(count, "count", mpi_errno, MPI_ERR_COUNT);
for (i = 0; i < count; i++) {
MPIR_ERRTEST_INFO_OR_NULL(array_of_info[i], mpi_errno);
MPIR_ERRTEST_ARGNULL(array_of_commands[i], "array_of_commands[i]", mpi_errno);
MPIR_ERRTEST_ARGNEG(array_of_maxprocs[i], "array_of_maxprocs[i]", mpi_errno);
}
}
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
if (comm_ptr->rank == root) {
MPIR_CHKLMEM_MALLOC(array_of_info_ptrs, MPIR_Info **, count * sizeof(MPIR_Info *),
mpi_errno, "array of info pointers", MPL_MEM_BUFFER);
for (i = 0; i < count; i++) {
MPIR_Info_get_ptr(array_of_info[i], array_of_info_ptrs[i]);
}
}
/* TODO: add error check to see if this collective function is
* being called from multiple threads. */
mpi_errno = MPID_Comm_spawn_multiple(count, array_of_commands,
array_of_argv,
array_of_maxprocs,
array_of_info_ptrs, root,
comm_ptr, &intercomm_ptr, array_of_errcodes);
if (mpi_errno != MPI_SUCCESS)
goto fn_fail;
MPIR_OBJ_PUBLISH_HANDLE(*intercomm, intercomm_ptr->handle);
/* ... end of body of routine ... */
fn_exit:
MPIR_CHKLMEM_FREEALL();
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_COMM_SPAWN_MULTIPLE);
MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
return mpi_errno;
fn_fail:
/* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
{
mpi_errno =
MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_comm_spawn_multiple",
"**mpi_comm_spawn_multiple %d %p %p %p %p %d %C %p %p", count,
array_of_commands, array_of_argv, array_of_maxprocs, array_of_info,
root, comm, intercomm, array_of_errcodes);
}
#endif
mpi_errno = MPIR_Err_return_comm(comm_ptr, FCNAME, mpi_errno);
goto fn_exit;
/* --END ERROR HANDLING-- */
}