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openmpi/orte/mca/oob/base/oob_base_open.c
Ralph Castain 18b2dca51c Bring in the code for routing xcast stage gate messages via the local orteds. This code is inactive unless you specifically request it via an mca param oob_xcast_mode (can be set to "linear" or "direct"). Direct mode is the old standard method where we send messages directly to each MPI process. Linear mode sends the xcast message via the orteds, with the HNP sending the message to each orted directly.
There is a binomial algorithm in the code (i.e., the HNP would send to a subset of the orteds, which then relay it on according to the typical log-2 algo), but that has a bug in it so the code won't let you select it even if you tried (and the mca param doesn't show, so you'd *really* have to try).

This also involved a slight change to the oob.xcast API, so propagated that as required.

Note: this has *only* been tested on rsh, SLURM, and Bproc environments (now that it has been transferred to the OMPI trunk, I'll need to re-test it [only done rsh so far]). It should work fine on any environment that uses the ORTE daemons - anywhere else, you are on your own... :-)

Also, correct a mistake where the orte_debug_flag was declared an int, but the mca param was set as a bool. Move the storage for that flag to the orte/runtime/params.c and orte/runtime/params.h files appropriately.

This commit was SVN r14475.
2007-04-23 18:41:04 +00:00

134 строки
4.5 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#include "orte/orte_constants.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/util/output.h"
#include "opal/mca/base/mca_base_param.h"
#include "orte/mca/oob/oob.h"
/*
* The following file was created by configure. It contains extern
* statements and the definition of an array of pointers to each
* component's public mca_base_component_t struct.
*/
#include "orte/mca/oob/base/static-components.h"
/*
* Global variables
*/
mca_oob_t mca_oob;
int mca_oob_base_output = -1;
char* mca_oob_base_include = NULL;
char* mca_oob_base_exclude = NULL;
opal_list_t mca_oob_base_components;
opal_list_t mca_oob_base_modules;
opal_list_t mca_oob_base_exception_handlers;
bool orte_oob_base_timing;
bool orte_oob_xcast_timing;
int orte_oob_xcast_mode;
/**
* Function for finding and opening either all MCA components, or the one
* that was specifically requested via a MCA parameter.
*/
int mca_oob_base_open(void)
{
int param, value;
char *mode;
static bool already_opened = false;
/* Sanity check. This may be able to be removed when the rml/oob
interface is re-worked (the current infrastructure may invoke
this function twice: once as a standalone, and once via the rml
oob component). */
if (already_opened) {
return ORTE_SUCCESS;
}
/* Open up all available components */
OBJ_CONSTRUCT(&mca_oob_base_components, opal_list_t);
OBJ_CONSTRUCT(&mca_oob_base_modules, opal_list_t);
OBJ_CONSTRUCT(&mca_oob_base_exception_handlers, opal_list_t);
if (ORTE_SUCCESS !=
mca_base_components_open("oob", mca_oob_base_output,
mca_oob_base_static_components,
&mca_oob_base_components, true)) {
return ORTE_ERROR;
}
/* register parameters */
mca_base_param_reg_string_name("oob_base", "include",
"Components to include for oob framework selection",
false, false, NULL, &mca_oob_base_include);
mca_base_param_reg_string_name("oob_base", "exclude",
"Components to exclude for oob framework selection",
false, false, NULL, &mca_oob_base_exclude);
param = mca_base_param_reg_int_name("orte", "timing",
"Request that critical timing loops be measured",
false, false, 0, &value);
if (value != 0) {
orte_oob_base_timing = true;
} else {
orte_oob_base_timing = false;
}
param = mca_base_param_reg_int_name("oob_xcast", "timing",
"Request that xcast timing loops be measured",
false, false, 0, &value);
if (value != 0) {
orte_oob_xcast_timing = true;
} else {
orte_oob_xcast_timing = false;
}
param = mca_base_param_reg_string_name("oob_xcast", "mode",
#if 0
"Select xcast mode (\"linear\" | \"binomial\" | \"direct [default] \")",
#endif
"Select xcast mode (\"linear\" | \"direct [default] \")",
false, false, "direct", &mode);
if (0 == strcmp(mode, "binomial")) {
opal_output(0, "oob_xcast_mode: %s option not supported at this time", mode);
return ORTE_ERROR;
orte_oob_xcast_mode = 0;
} else if (0 == strcmp(mode, "linear")) {
orte_oob_xcast_mode = 1;
} else if (0 == strcmp(mode, "direct")) {
orte_oob_xcast_mode = 2;
} else {
opal_output(0, "oob_xcast_mode: unknown option %s", mode);
return ORTE_ERROR;
}
/* All done */
already_opened = true;
return ORTE_SUCCESS;
}