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openmpi/opal/mca/memchecker/base/memchecker_base_select.c

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2.2 KiB
C
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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
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* Copyright (c) 2004-2007 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2008 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
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*
* Additional copyrights may follow
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*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/constants.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/mca/memchecker/memchecker.h"
#include "opal/mca/memchecker/base/base.h"
/*
* Globals
*/
bool opal_memchecker_base_selected = false;
const opal_memchecker_base_component_2_0_0_t *opal_memchecker_base_component = NULL;
const opal_memchecker_base_module_1_0_0_t *opal_memchecker_base_module = NULL;
int opal_memchecker_base_select(void)
{
George did the work and deserves all the credit for it. Ralph did the merge, and deserves whatever blame results from errors in it :-) WHAT: Open our low-level communication infrastructure by moving all necessary components (btl/rcache/allocator/mpool) down in OPAL All the components required for inter-process communications are currently deeply integrated in the OMPI layer. Several groups/institutions have express interest in having a more generic communication infrastructure, without all the OMPI layer dependencies. This communication layer should be made available at a different software level, available to all layers in the Open MPI software stack. As an example, our ORTE layer could replace the current OOB and instead use the BTL directly, gaining access to more reactive network interfaces than TCP. Similarly, external software libraries could take advantage of our highly optimized AM (active message) communication layer for their own purpose. UTK with support from Sandia, developped a version of Open MPI where the entire communication infrastucture has been moved down to OPAL (btl/rcache/allocator/mpool). Most of the moved components have been updated to match the new schema, with few exceptions (mainly BTLs where I have no way of compiling/testing them). Thus, the completion of this RFC is tied to being able to completing this move for all BTLs. For this we need help from the rest of the Open MPI community, especially those supporting some of the BTLs. A non-exhaustive list of BTLs that qualify here is: mx, portals4, scif, udapl, ugni, usnic. This commit was SVN r32317.
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#if OPAL_WANT_MEMCHECKER
int ret, exit_status = OPAL_SUCCESS;
opal_memchecker_base_component_2_0_0_t *best_component = NULL;
opal_memchecker_base_module_1_0_0_t *best_module = NULL;
/*
* Select the best component
*/
if( OPAL_SUCCESS != mca_base_select("memchecker", opal_memchecker_base_framework.framework_output,
&opal_memchecker_base_framework.framework_components,
(mca_base_module_t **) &best_module,
(mca_base_component_t **) &best_component, NULL) ) {
/* This will only happen if no component was selected */
exit_status = OPAL_ERR_NOT_FOUND;
goto cleanup;
}
/* Save the winner */
opal_memchecker_base_component = best_component;
opal_memchecker_base_module = best_module;
opal_memchecker_base_selected = true;
/* Initialize the winner */
if (NULL != opal_memchecker_base_module) {
if (OPAL_SUCCESS != (ret = opal_memchecker_base_module->init()) ) {
exit_status = ret;
goto cleanup;
}
}
cleanup:
return exit_status;
#else
return OPAL_SUCCESS;
George did the work and deserves all the credit for it. Ralph did the merge, and deserves whatever blame results from errors in it :-) WHAT: Open our low-level communication infrastructure by moving all necessary components (btl/rcache/allocator/mpool) down in OPAL All the components required for inter-process communications are currently deeply integrated in the OMPI layer. Several groups/institutions have express interest in having a more generic communication infrastructure, without all the OMPI layer dependencies. This communication layer should be made available at a different software level, available to all layers in the Open MPI software stack. As an example, our ORTE layer could replace the current OOB and instead use the BTL directly, gaining access to more reactive network interfaces than TCP. Similarly, external software libraries could take advantage of our highly optimized AM (active message) communication layer for their own purpose. UTK with support from Sandia, developped a version of Open MPI where the entire communication infrastucture has been moved down to OPAL (btl/rcache/allocator/mpool). Most of the moved components have been updated to match the new schema, with few exceptions (mainly BTLs where I have no way of compiling/testing them). Thus, the completion of this RFC is tied to being able to completing this move for all BTLs. For this we need help from the rest of the Open MPI community, especially those supporting some of the BTLs. A non-exhaustive list of BTLs that qualify here is: mx, portals4, scif, udapl, ugni, usnic. This commit was SVN r32317.
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#endif /* OPAL_WANT_MEMCHECKER */
}