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openmpi/ompi/mca/btl/base/btl_base_open.c
George Bosilca 8643f38adf Don't allow the BTL to be closed before the end of the process. Count the
number of times the BTLs are opened, and then don't remove them until
close was called the same number of times.

This commit was SVN r15376.
2007-07-11 22:21:04 +00:00

127 строки
3.9 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2007 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) 2006 Sun Microsystems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.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 "ompi/mca/pml/pml.h"
#include "ompi/mca/btl/btl.h"
#include "ompi/mca/btl/base/base.h"
/*
* mca_btl_base_descriptor_t
*/
static void mca_btl_base_descriptor_constructor(mca_btl_base_descriptor_t* des)
{
des->des_src = NULL;
des->des_src_cnt = 0;
des->des_dst = NULL;
des->des_dst_cnt = 0;
des->des_cbfunc = NULL;
des->des_cbdata = NULL;
des->des_flags = 0;
}
static void mca_btl_base_descriptor_destructor(mca_btl_base_descriptor_t* des)
{
}
OBJ_CLASS_INSTANCE(
mca_btl_base_descriptor_t,
opal_list_item_t,
mca_btl_base_descriptor_constructor,
mca_btl_base_descriptor_destructor);
/*
* 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 "ompi/mca/btl/base/static-components.h"
#include "btl_base_error.h"
/*
* Global variables
*/
int mca_btl_base_output = -1;
char* mca_btl_base_include = NULL;
char* mca_btl_base_exclude = NULL;
int mca_btl_base_warn_component_unused = 1;
opal_list_t mca_btl_base_components_opened;
opal_list_t mca_btl_base_modules_initialized;
int already_opened = 0;
/**
* Function for finding and opening either all MCA components, or the one
* that was specifically requested via a MCA parameter.
*/
int mca_btl_base_open(void)
{
if( ++already_opened > 1 ) return OMPI_SUCCESS;
mca_base_param_reg_int_name( "btl",
"base_debug",
"If btl_base_debug is 1 standard debug is output, if > 1 verbose debug is output",
false, false,
0,
&mca_btl_base_debug );
if( mca_btl_base_debug > 0 ) {
mca_btl_base_output = opal_output_open(NULL);
opal_output_set_verbosity(mca_btl_base_output, mca_btl_base_debug);
} else {
mca_btl_base_output = -1;
}
/* Open up all available components */
if (OMPI_SUCCESS !=
mca_base_components_open("btl", 0, mca_btl_base_static_components,
&mca_btl_base_components_opened, true)) {
return OMPI_ERROR;
}
/* Initialize the list so that in mca_btl_base_close(), we can
iterate over it (even if it's empty, as in the case of
ompi_info) */
OBJ_CONSTRUCT(&mca_btl_base_modules_initialized, opal_list_t);
/* register parameters */
mca_base_param_lookup_string(
mca_base_param_register_string("btl","base","include",NULL,NULL), &mca_btl_base_include);
mca_base_param_lookup_string(
mca_base_param_register_string("btl","base","exclude",NULL,NULL), &mca_btl_base_exclude);
mca_base_param_reg_int_name("btl", "base_warn_component_unused",
"This parameter is used to turn on warning messages when certain NICs are not used",
false, false, 1, &mca_btl_base_warn_component_unused);
/* All done */
return OMPI_SUCCESS;
}