openmpi/opal/mca/mpool/base/help-mpool-base.txt

# -*- text -*-
#
# Copyright (c) 2007-2009 Cisco Systems, Inc.  All rights reserved.
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$
#
[all mem leaks]
The following memory locations were allocated via MPI_ALLOC_MEM but
not freed via MPI_FREE_MEM before invoking MPI_FINALIZE:

Process ID: %s
Hostname:   %s
PID:        %d

%s
#
[some mem leaks]
The following memory locations were allocated via MPI_ALLOC_MEM but
not freed via MPI_FREE_MEM before invoking MPI_FINALIZE:

Process ID: %s
Hostname:   %s
PID:        %d

%s

%d additional leak%s recorded but %s not displayed here.  Set the MCA
parameter mpi_show_mpi_alloc_mem_leaks to a larger number to see that
many leaks, or set it to a negative number to see all leaks.
Introduce a new debugging MCA parameter: mpi_show_mpi_alloc_mem_leaks When activated, MPI_FINALIZE displays a list of memory allocations from MPI_ALLOC_MEM that were not freed by MPI_FREE_MEM (in each MPI process). * If set to a positive integer, display only that many leaks. * If set to a negative integer, display all leaks. * If set to 0, do not show any leaks. This commit was SVN r15736. 2007-08-02 01:33:25 +04:00			`# -- text --`
			`#`
Per http://www.open-mpi.org/community/lists/announce/2009/03/0029.php and https://svn.open-mpi.org/trac/ompi/ticket/1853, mallopt() hints do not always work -- it is possible for memory to be returned to the OS and therefore OMPI's registration cache becomes invalid. This commit removes all use of mallopt() and uses a different way to integrate ptmalloc2 than we have done in the past. In particular, we use almost exactly the same technique as MX: * Remove all uses of mallopt, to include the opal/memory mallopt component. * Name-shift all of OMPI's internal ptmalloc2 public symbols (e.g., malloc -> opal_memory_ptmalloc2_malloc). * At run-time, use the existing glibc allocator malloc hook function pointers to fully hijack the glibc allocator with our own name-shifted ptmalloc2. * Make the decision whether to hijack the glibc allocator ''at run time'' (vs. at link time, as previous ptmalloc2 integration attempts have done). Look at the OMPI_MCA_mpi_leave_pinned and OMPI_MCA_mpi_leave_pinned_pipeline environment variables and the existence of /sys/class/infiniband to determine if we should install the hooks or not. * As an added bonus, we can now tell if libopen-pal is linked statically or dynamically, and if we're linked statically, we assume that munmap intercept support doesn't work. See the opal/mca/memory/ptmalloc2/README-open-mpi.txt file for all the gory details about the implementation. Fixes trac:1853. This commit was SVN r20921. The following Trac tickets were found above: Ticket 1853 --> https://svn.open-mpi.org/trac/ompi/ticket/1853 2009-04-01 21:52:16 +04:00			`# Copyright (c) 2007-2009 Cisco Systems, Inc. All rights reserved.`
Introduce a new debugging MCA parameter: mpi_show_mpi_alloc_mem_leaks When activated, MPI_FINALIZE displays a list of memory allocations from MPI_ALLOC_MEM that were not freed by MPI_FREE_MEM (in each MPI process). * If set to a positive integer, display only that many leaks. * If set to a negative integer, display all leaks. * If set to 0, do not show any leaks. This commit was SVN r15736. 2007-08-02 01:33:25 +04:00			`# $COPYRIGHT$`
Purge whitespace from the repo 2015-06-24 06:59:57 +03:00			`#`
Introduce a new debugging MCA parameter: mpi_show_mpi_alloc_mem_leaks When activated, MPI_FINALIZE displays a list of memory allocations from MPI_ALLOC_MEM that were not freed by MPI_FREE_MEM (in each MPI process). * If set to a positive integer, display only that many leaks. * If set to a negative integer, display all leaks. * If set to 0, do not show any leaks. This commit was SVN r15736. 2007-08-02 01:33:25 +04:00			`# Additional copyrights may follow`
Purge whitespace from the repo 2015-06-24 06:59:57 +03:00			`#`
Introduce a new debugging MCA parameter: mpi_show_mpi_alloc_mem_leaks When activated, MPI_FINALIZE displays a list of memory allocations from MPI_ALLOC_MEM that were not freed by MPI_FREE_MEM (in each MPI process). * If set to a positive integer, display only that many leaks. * If set to a negative integer, display all leaks. * If set to 0, do not show any leaks. This commit was SVN r15736. 2007-08-02 01:33:25 +04:00			`# $HEADER$`
			`#`
			`[all mem leaks]`
			`The following memory locations were allocated via MPI_ALLOC_MEM but`
			`not freed via MPI_FREE_MEM before invoking MPI_FINALIZE:`

			`Process ID: %s`
			`Hostname: %s`
			`PID: %d`

			`%s`
			`#`
			`[some mem leaks]`
			`The following memory locations were allocated via MPI_ALLOC_MEM but`
			`not freed via MPI_FREE_MEM before invoking MPI_FINALIZE:`

			`Process ID: %s`
			`Hostname: %s`
			`PID: %d`

			`%s`

			`%d additional leak%s recorded but %s not displayed here. Set the MCA`
			`parameter mpi_show_mpi_alloc_mem_leaks to a larger number to see that`
			`many leaks, or set it to a negative number to see all leaks.`