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Subject: Re: [OMPI devel] RFC: System V Shared Memory for Open MPI
From: Graham, Richard L. (rlgraham_at_[hidden])
Date: 2010-06-01 13:35:12


Can you be a bit more explicit, please ?
I do not want this on our systems, so as long as this is a compile time decision, and as long as this does not degrade the performance of the current sm device, I will not object.

Rich

----- Original Message -----
From: devel-bounces_at_[hidden] <devel-bounces_at_[hidden]>
To: Open MPI Developers <devel_at_[hidden]>
Sent: Tue Jun 01 13:08:46 2010
Subject: [OMPI devel] RFC: System V Shared Memory for Open MPI

WHAT: New System V shared memory component.

WHY: https://svn.open-mpi.org/trac/ompi/ticket/1320

WHERE:
M ompi/mca/btl/sm/btl_sm.c
M ompi/mca/btl/sm/btl_sm_component.c
M ompi/mca/btl/sm/btl_sm.h
M ompi/mca/mpool/sm/mpool_sm_component.c
M ompi/mca/mpool/sm/mpool_sm.h
M ompi/mca/mpool/sm/mpool_sm_module.c
A ompi/mca/common/sm/configure.m4
A ompi/mca/common/sm/common_sm_sysv.h
A ompi/mca/common/sm/common_sm_windows.c
A ompi/mca/common/sm/common_sm_windows.h
A ompi/mca/common/sm/common_sm.c
A ompi/mca/common/sm/common_sm_sysv.c
A ompi/mca/common/sm/common_sm.h
M ompi/mca/common/sm/common_sm_mmap.c
M ompi/mca/common/sm/common_sm_mmap.h
M ompi/mca/common/sm/Makefile.am
M ompi/mca/common/sm/help-mpi-common-sm.txt
M ompi/mca/coll/sm/coll_sm_module.c
M ompi/mca/coll/sm/coll_sm.h

WHEN: Upon acceptance.

TIMEOUT: Tuesday, June 8, 2010 (after devel concall).

HOW:
MCA mpi: parameter "mpi_common_sm" (current value: <mmap>,
                           data source: default value)
                           Which shared memory support will be used.
Valid
                           values: sysv,mmap - or a comma delimited
combination
                           of them (order dependent). The first
component that
                           is successfully selected is used.

Thanks!

--
Samuel K. Gutierrez
Los Alamos National Laboratory
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