79ad6d983e
a standalone library named libopenmpi-malloc. Users wanting to use leave_pinned with ptmalloc2 will now need to link the library into their application explicitly. All other users will use the libc-provided allocator instead of Open MPI's ptmalloc2. This change may be overriden with the configure option enable-ptmalloc2-internal - The leave_pinned options will now default to using mallopt on Linux in the cases where ptmalloc2 was not linked in. mallopt will also only be available if munmap can be intercepted (the default whenever Open MPI is not compiled with --without-memory- manager. - Open MPI will now complain and refuse to use leave_pinned if no memory intercept / mallopt option is available. This commit was SVN r18654.
65 строки
2.0 KiB
C
65 строки
2.0 KiB
C
/*
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* Copyright (c) 2004-2007 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) 2004-2005 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 "opal_config.h"
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#include "opal/mca/memory/memory.h"
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#include "opal/memoryhooks/memory.h"
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static int opal_memory_ptmalloc2_open(void);
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const opal_memory_base_component_1_0_0_t mca_memory_ptmalloc2_component = {
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/* First, the mca_component_t struct containing meta information
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about the component itself */
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{
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/* Indicate that we are a memory v1.0.0 component (which also
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implies a specific MCA version) */
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OPAL_MEMORY_BASE_VERSION_1_0_0,
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/* Component name and version */
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"ptmalloc2",
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OPAL_MAJOR_VERSION,
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OPAL_MINOR_VERSION,
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OPAL_RELEASE_VERSION,
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/* Component open and close functions */
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opal_memory_ptmalloc2_open,
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NULL
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},
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/* Next the MCA v1.0.0 component meta data */
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{
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/* The component is checkpoint ready */
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MCA_BASE_METADATA_PARAM_CHECKPOINT
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},
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};
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static int
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opal_memory_ptmalloc2_open(void)
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{
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/* we always provide munmap support as part of libopen-pal.la.
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Will also provide malloc/free support if user linked us in. In
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that case, we've already likely called set_support, so don't
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crush what has already been done */
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if (0 == opal_mem_hooks_support_level()) {
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opal_mem_hooks_set_support(OPAL_MEMORY_MUNMAP_SUPPORT);
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}
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return OPAL_SUCCESS;
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}
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