84 строки
2.8 KiB
C
84 строки
2.8 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2006 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdio.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#include "ompi/mca/bml/bml.h"
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#include "ompi/mca/bml/base/base.h"
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#include "ompi/mca/btl/base/base.h"
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#include "ompi/mca/bml/base/static-components.h"
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#include "opal/mca/base/base.h"
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opal_list_t mca_bml_base_components_available;
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#if OMPI_ENABLE_DEBUG_RELIABILITY
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double mca_bml_base_error_rate_floor;
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double mca_bml_base_error_rate_ceiling;
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int mca_bml_base_error_count;
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#endif
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int mca_bml_base_open( void ) {
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if(OMPI_SUCCESS !=
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mca_base_components_open("bml", 0, mca_bml_base_static_components,
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&mca_bml_base_components_available,
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true)) {
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return OMPI_ERROR;
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}
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#if OMPI_ENABLE_DEBUG_RELIABILITY
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do {
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int param, value;
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mca_base_param_register_int("bml", NULL, "error_rate_floor", "error_rate_floor", 0);
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param = mca_base_param_find("bml", NULL, "error_rate_floor");
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mca_base_param_lookup_int(param, &value);
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mca_bml_base_error_rate_floor = value;
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mca_base_param_register_int("bml", NULL, "error_rate_ceiling", "error_rate_ceiling", 0);
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param = mca_base_param_find("bml", NULL, "error_rate_ceiling");
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mca_base_param_lookup_int(param, &value);
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mca_bml_base_error_rate_ceiling = value;
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mca_base_param_register_int("bml", NULL, "srand", "srand", 1);
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param = mca_base_param_find("bml", NULL, "srand");
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mca_base_param_lookup_int(param, &value);
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/* seed random number generator */
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if(value) {
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struct timeval tv;
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gettimeofday(&tv, NULL);
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srand(getpid() * tv.tv_usec);
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}
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/* initialize count */
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if(mca_bml_base_error_rate_ceiling > 0
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&& mca_bml_base_error_rate_floor <= mca_bml_base_error_rate_ceiling) {
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mca_bml_base_error_count = (int) ((mca_bml_base_error_rate_ceiling * rand())/(RAND_MAX+1.0));
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}
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} while (0);
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#endif
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return mca_btl_base_open();
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}
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