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/*
* Copyright (c) 2001-2003 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 1998-2001 University of Notre Dame.
* All rights reserved.
* Copyright (c) 1994-1998 The Ohio State University.
* All rights reserved.
*
* This file is part of the LAM/MPI software package. For license
* information, see the LICENSE file in the top level directory of the
* LAM/MPI source distribution.
*
* $HEADER$
*
* $Id: lamspawn.c,v 6.16 2003/04/10 19:21:09 ssankara Exp $
*
* Function: - helper functions to the spawn routines
*/
#include <lam_config.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <etc_misc.h>
#include <mpisys.h>
#include <rpisys.h>
#include <net.h>
#include <mpi_apps.h>
#include <lam-ssi-cr.h>
#include <lam-ssi-rpi.h>
/*
* lam_get_mpi_world
*
* Function: - get MPI world
* Accepts: - size of world
* - initial process world
* - MPI process world (out)
* - string prefix to print in error message
* Returns: - full pathname or NULL
*/
int
lam_get_mpi_world(int4 world_n, struct _gps *world, struct _gps *mpiworld,
char *prefix)
{
int i, j;
struct nmsg msg;
struct mpi_app_proc_info *mapi;
memcpy(mpiworld, world, world_n * sizeof(struct _gps));
for (i = 0; i < world_n; i++) {
mpiworld[i].gps_pid = 0;
}
LAM_ZERO_ME(msg);
msg.nh_event = (-lam_getpid()) & 0xBFFFFFFF;
msg.nh_flags = DINT4DATA;
msg.nh_length = 0;
mapi = (struct mpi_app_proc_info *) &msg.nh_data;
for (i = 0; i < world_n; i++) {
msg.nh_type = 3;
if (nrecv(&msg)) {
terror("mpirun");
return(LAMERROR);
}
if (msg.nh_type == 1) {
fprintf(stderr,
"%s: process terminated before completing MPI_Init()\n",
prefix);
return(LAMERROR);
}
/* Set the MPI process pid and index. */
j = mapi->mapi_mcw_rank;
if (j < 0 || j >= world_n) {
errno = EIMPOSSIBLE;
terror("mpirun");
return(LAMERROR);
}
mpiworld[j].gps_pid = mapi->mapi_pid;
mpiworld[j].gps_idx = mapi->mapi_ps_index;
}
return(0);
}
/*
* lam_match_ssi_modules
*
* Function: - match the SSI modules chosen by all spawned
* processes with the corresponding modules chosen
* by us.
* Accepts: - size of world
* - MPI process world
* - string prefix to print error message
* Returns: - 0 or LAMERROR
*/
int
lam_match_ssi_modules(int4 world_n, struct _gps *world, char *prefix)
{
int i, max;
struct nmsg msg;
lam_ssi_module_t *module;
lam_ssi_rpi_t rpi;
#if 0
/* See comment below */
lam_ssi_crmpi_t crmpi;
#endif
struct mpi_app_extra_info maei;
char arg1[LAM_MPI_SSI_BASE_MAX_MODULE_NAME_LEN * 2],
arg2[LAM_MPI_SSI_BASE_MAX_MODULE_NAME_LEN * 2],
arg3[LAM_MPI_SSI_BASE_MAX_MODULE_NAME_LEN * 2];
LAM_ZERO_ME(msg);
msg.nh_event = (-lam_getpid()) & 0xBFFFFFFF;
msg.nh_flags = DINT4DATA;
msg.nh_length = sizeof(maei);
msg.nh_msg = (char *) &maei;
for (i = 0; i < world_n; i++) {
msg.nh_type = 3;
if (nrecv(&msg)) {
terror("spawn parent");
return LAMERROR;
}
if (msg.nh_type == 1) {
fprintf(stderr, "%s: process terminated before completing "
"MPI_Init()\n", prefix);
return LAMERROR;
}
max = (LAM_MPI_SSI_BASE_MAX_MODULE_NAME_LEN * 2) - 1;
/*
* Check to ensure that the RPI module sent by all processes match
* what we've got. This has to change when we go to multi-RPI.
*/
module = (lam_ssi_module_t *) al_top(lam_ssi_rpi_base_available);
rpi = *((lam_ssi_rpi_t *) module->lsm_module);
if (strncmp(rpi.lsr_meta_info.ssi_module_name,
maei.maei_rpi.masi_name,
sizeof(rpi.lsr_meta_info.ssi_module_name)) != 0 ||
(rpi.lsr_meta_info.ssi_module_major_version !=
ttol(maei.maei_rpi.masi_major_ver)) ||
(rpi.lsr_meta_info.ssi_module_minor_version !=
ttol(maei.maei_rpi.masi_minor_ver)) ||
(rpi.lsr_meta_info.ssi_module_release_version !=
ttol(maei.maei_rpi.masi_release_ver))) {
/* Take pains to print a friendly error message */
snprintf(arg1, max, "%s (v%d.%d.%d)",
rpi.lsr_meta_info.ssi_module_name,
rpi.lsr_meta_info.ssi_module_major_version,
rpi.lsr_meta_info.ssi_module_minor_version,
rpi.lsr_meta_info.ssi_module_release_version);
snprintf(arg2, max, "%d", msg.nh_data[0]);
snprintf(arg3, max, "%s (v%d.%d.%d)", maei.maei_rpi.masi_name,
ttol(maei.maei_rpi.masi_major_ver),
ttol(maei.maei_rpi.masi_minor_ver),
ttol(maei.maei_rpi.masi_release_ver));
show_help("MPI", "spawn-rpi-mismatch",
prefix, arg1, arg2, arg3, NULL);
return LAMERROR;
}
#if 0
/* Due to bug 682, spawned processes cannot be checkpointable --
we can just ignore what they sent for crmpi modules, because
lam_mpi_init() is hard-wired to select no crmpi module when an
MPI process is MPI_COMM_SPAWN*'ed. */
/*
* If we did not select any crmpi module to run, we must ensure that
* the spawned processes send ("none", -1, -1, -1) for the selected
* crmpi module. Else we must ensure that the crmpi module sent by the
* spawned processes match what we've got.
*/
module = (lam_ssi_module_t *) al_top(lam_ssi_crmpi_base_available);
if (module != NULL)
crmpi = *((lam_ssi_crmpi_t *) module->lsm_module);
if (((NULL == module) &&
(strncmp(maei.maei_crmpi.masi_name, "none",
sizeof(maei.maei_crmpi.masi_name)) != 0 ||
(ttol(maei.maei_crmpi.masi_major_ver) != -1) ||
(ttol(maei.maei_crmpi.masi_minor_ver) != -1) ||
(ttol(maei.maei_crmpi.masi_release_ver) != -1)))) {
/* Take pains to print a friendly error message */
snprintf(arg1, max, "%s (v%d.%d.%d)", "none", -1, -1, -1);
snprintf(arg2, max, "%d", msg.nh_data[0]);
snprintf(arg3, max, "%s (v%d.%d.%d)", maei.maei_crmpi.masi_name,
ttol(maei.maei_crmpi.masi_major_ver),
ttol(maei.maei_crmpi.masi_minor_ver),
ttol(maei.maei_crmpi.masi_release_ver));
show_help("MPI", "spawn-cr-mismatch",
arg1, arg2, arg3, NULL);
return LAMERROR;
}
if ((module != NULL) &&
((strncmp(crmpi.lscrm_meta_info.ssi_module_name,
maei.maei_crmpi.masi_name,
sizeof(crmpi.lscrm_meta_info.ssi_module_name)) != 0) ||
(crmpi.lscrm_meta_info.ssi_module_major_version !=
ttol(maei.maei_crmpi.masi_major_ver)) ||
(crmpi.lscrm_meta_info.ssi_module_minor_version !=
ttol(maei.maei_crmpi.masi_minor_ver)) ||
(crmpi.lscrm_meta_info.ssi_module_release_version !=
ttol(maei.maei_crmpi.masi_release_ver)))) {
/* Take pains to print a friendly error message */
snprintf(arg1, max, "%s (v%d.%d.%d)",
crmpi.lscrm_meta_info.ssi_module_name,
crmpi.lscrm_meta_info.ssi_module_major_version,
crmpi.lscrm_meta_info.ssi_module_minor_version,
crmpi.lscrm_meta_info.ssi_module_release_version);
snprintf(arg2, max, "%d", msg.nh_data[0]);
snprintf(arg3, max, "%s (v%d.%d.%d)", maei.maei_crmpi.masi_name,
ttol(maei.maei_crmpi.masi_major_ver),
ttol(maei.maei_crmpi.masi_minor_ver),
ttol(maei.maei_crmpi.masi_release_ver));
show_help("MPI", "spawn-cr-mismatch",
arg1, arg2, arg3, NULL);
return LAMERROR;
}
#endif
}
return 0;
}
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