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Subject: [OMPI devel] Regarding registering openib memory
From: alankrutha reddy (alankruthareddy46_at_[hidden])
Date: 2013-05-31 09:04:40


Hi,

Whwnever I'm trying to run MPI program it is giving error. I have changed
locked memory limits by using

ulimit -l unlimited

But still it is giving below error

--------------------------------------------------------------------------
WARNING: It appears that your OpenFabrics subsystem is configured to only
allow registering part of your physical memory. This can cause MPI jobs to
run with erratic performance, hang, and/or crash.

This may be caused by your OpenFabrics vendor limiting the amount of
physical memory that can be registered. You should investigate the
relevant Linux kernel module parameters that control how much physical
memory can be registered, and increase them to allow registering all
physical memory on your machine.

See this Open MPI FAQ item for more information on these Linux kernel module
parameters:

    http://www.open-mpi.org/faq/?category=openfabrics#ib-locked-pages

  Local host: abc
  Registerable memory: 32768 MiB
  Total memory: 131007 MiB

Your MPI job will continue, but may be behave poorly and/or hang.
--------------------------------------------------------------------------

How can I resolve it.? Can anyone help me in fixing this bug.?

-- 
*Regards
**Alankrutha*