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openmpi/opal/mca/db/print/db_print_component.c
Ralph Castain 2121e9c01b Fix an issue regarding use of PMI when running processes and tools that don't need or want to use it. We build PMI support based on configuration settings and library availability.
However, tools such as mpirun don't need it, and definitely shouldn't be using it. Ditto for procs launched by mpirun.

We used to have a way of dealing with this - we had the PMI component check to see if the process was the HNP or was launched by an HNP. Sadly, moving the OPAL db framework removed
 that ability as OPAL has no notion of HNPs or proc type.

So add a boolean flag to the db_base_select API that allows us to restrict selection to "local" components. This gives the PMI component the ability to reject itself as required. W
e then need to pass that param into the ess_base_std_app call so it can pass it all down.

This commit was SVN r29341.
2013-10-02 19:03:46 +00:00

108 строки
3.2 KiB
C

/*
* Copyright (c) 2012-2013 Los Alamos National Security, Inc. All rights reserved.
* Copyright (c) 2013 Intel, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
* These symbols are in a file by themselves to provide nice linker
* semantics. Since linkers generally pull in symbols by object
* files, keeping these symbols as the only symbols in this file
* prevents utility programs such as "ompi_info" from having to import
* entire components just to query their version and parameters.
*/
#include "opal_config.h"
#include "opal/constants.h"
#include "opal/mca/base/base.h"
#include "opal/mca/db/db.h"
#include "opal/mca/db/base/base.h"
#include "db_print.h"
extern opal_db_base_module_t opal_db_print_module;
static int print_component_register(void);
static int print_component_open(void);
static int print_component_close(void);
static int print_component_query(opal_db_base_module_t **module,
int *store_priority,
int *fetch_priority,
bool restrict_local);
static int print_component_register(void);
/*
* Instantiate the public struct with all of our public information
* and pointers to our public functions in it
*/
opal_db_print_component_t mca_db_print_component = {
{
{
OPAL_DB_BASE_VERSION_1_0_0,
/* Component name and version */
"print",
OPAL_MAJOR_VERSION,
OPAL_MINOR_VERSION,
OPAL_RELEASE_VERSION,
/* Component open and close functions */
print_component_open,
print_component_close,
NULL,
print_component_register
},
{
/* The component is checkpoint ready */
MCA_BASE_METADATA_PARAM_CHECKPOINT
},
print_component_query
}
};
static int print_component_open(void)
{
return OPAL_SUCCESS;
}
/* this component is NEVER used for store or fetch */
static int print_component_query(opal_db_base_module_t **module,
int *store_priority,
int *fetch_priority,
bool restrict_local)
{
if (NULL == mca_db_print_component.filename) {
*store_priority = 0;
*fetch_priority = 0;
*module = NULL;
return OPAL_ERROR;
}
*store_priority = 0;
*fetch_priority = 0;
*module = &opal_db_print_module;
return OPAL_SUCCESS;
}
static int print_component_close(void)
{
return OPAL_SUCCESS;
}
static int print_component_register(void)
{
mca_db_print_component.filename = NULL;
(void) mca_base_component_var_register (&mca_db_print_component.super.base_version,
"file", "Print to the indicated file (- => stdout, + => stderr)",
MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_db_print_component.filename);
return OPAL_SUCCESS;
}