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Subject: Re: [OMPI devel] OpenMPI, PLPA and Linux cpuset/cgroup support
From: Terry Dontje (Terry.Dontje_at_[hidden])
Date: 2009-07-16 07:16:02


There are some mailing lists for PLPA at:

http://www.open-mpi.org/community/lists/plpa.php

--td
Ralph Castain wrote:
> Sounds like a problem in PLPA - I'll have to defer to them. Our
> primary PLPA person is on vacation this week, so you might not hear
> back from him until later next week when he gets through his inbox
> mountain.
>
> PLPA may have its own mailing list too - not really sure.
>
> On Jul 15, 2009, at 10:24 PM, Chris Samuel wrote:
>
>>
>> ----- "Ralph Castain" <rhc_at_[hidden]> wrote:
>>
>>> Looking at your command line, did you remember to set -mca
>>> mpi_paffinity_alone 1?
>>
>> Ahh, no, sorry, still feeling my way with this..
>>
>>> If not, we won't set affinity on the processes.
>>
>> Now it fails immediately with:
>>
>> Setting processor affinity failed
>> --> Returned "Invalid argument" (-11) instead of "Success" (0)
>>
>> wrapped in a bunch of OpenMPI messages explaining that it
>> failed on start.
>>
>> The strace looks much the same as before.
>>
>> [csamuel_at_tango047 CPI]$ fgrep affinity cpi-trace.txt
>> 10853 execve("/usr/local/openmpi/1.3.3-gcc/bin/mpiexec", ["mpiexec",
>> "-mca", "mpi_paffinity_alone", "1", "-npernode", "4",
>> "/home/csamuel/Sources/Tests/CPI/"...], [/* 56 vars */]) = 0
>> 10853 sched_getaffinity(0, 128, { 3c }) = 8
>> 10853 sched_setaffinity(0, 8, { 0 }) = -1 EFAULT (Bad address)
>> 10854 sched_getaffinity(0, 128, <unfinished ...>
>> 10854 <... sched_getaffinity resumed> { 3c }) = 8
>> 10854 sched_setaffinity(0, 8, { 0 } <unfinished ...>
>> 10854 <... sched_setaffinity resumed> ) = -1 EFAULT (Bad address)
>> 10857 sched_getaffinity(0, 128, <unfinished ...>
>> 10857 <... sched_getaffinity resumed> { 3c }) = 8
>> 10857 sched_setaffinity(0, 8, { 0 } <unfinished ...>
>> 10857 <... sched_setaffinity resumed> ) = -1 EFAULT (Bad address)
>> 10856 sched_getaffinity(0, 128, <unfinished ...>
>> 10856 <... sched_getaffinity resumed> { 3c }) = 8
>> 10856 sched_setaffinity(0, 8, { 0 } <unfinished ...>
>> 10856 <... sched_setaffinity resumed> ) = -1 EFAULT (Bad address)
>> 10855 sched_getaffinity(0, 128, <unfinished ...>
>> 10855 <... sched_getaffinity resumed> { 3c }) = 8
>> 10855 sched_setaffinity(0, 8, { 0 } <unfinished ...>
>> 10855 <... sched_setaffinity resumed> ) = -1 EFAULT (Bad address)
>> 10857 sched_setaffinity(10857, 8, { 8 } <unfinished ...>
>> 10857 <... sched_setaffinity resumed> ) = 0
>> 10856 sched_setaffinity(10856, 8, { 4 } <unfinished ...>
>> 10856 <... sched_setaffinity resumed> ) = 0
>> 10854 sched_setaffinity(10854, 8, { 1 } <unfinished ...>
>> 10854 <... sched_setaffinity resumed> ) = -1 EINVAL (Invalid argument)
>>
>>
>> cheers,
>> Chris
>> --
>> Christopher Samuel - (03) 9925 4751 - Systems Manager
>> The Victorian Partnership for Advanced Computing
>> P.O. Box 201, Carlton South, VIC 3053, Australia
>> VPAC is a not-for-profit Registered Research Agency
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>
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