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Subject: [OMPI devel] 1.5.5rc2 atomics fail w/ xlc-9
From: Paul H. Hargrove (PHHargrove_at_[hidden])
Date: 2012-02-24 20:19:36


I see now why I get "check" failures from the opal atomics w/ XLC-9.0.
The inline asm is mildly incorrect and I am actually surprised gcc
didn't produce bad code.

Patch(es) will be sent ASAP as I think this should be fixed for 1.5.5.

-Paul

On 2/23/2012 8:24 PM, Paul H. Hargrove wrote:
> This is consistent with my findings w/ XLC (mostly on BG/L and BG/P
> front end nodes).
> None of the 7.0, 8.0, 9.0 or 11.1 versions of XLC I tested could
> generate correct atomics.
> They either failed at build time, or failed the tests in test/asm/.
>
> -Paul
>
>
> On 2/23/2012 8:17 PM, Christopher Samuel wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> On 24/02/12 15:12, Christopher Samuel wrote:
>>
>>> I suspect this is irrelevant, but I got a build failure trying to
>>> compile it on our BG/P front end node (login node) with the IBM XL
>>> compilers.
>> Oops, forgot how I built it..
>>
>> export
>> PATH=/opt/ibmcmp/vac/bg/9.0/bin/:/opt/ibmcmp/vacpp/bg/9.0/bin:/opt/ibmcmp/xlf/bg/11.1/bin:$PATH
>>
>>
>> CC=xlc CXX=xlC F77=xlf ./configure&& make
>>
>> - -- Christopher Samuel - Senior Systems Administrator
>> VLSCI - Victorian Life Sciences Computation Initiative
>> Email: samuel_at_[hidden] Phone: +61 (0)3 903 55545
>> http://www.vlsci.unimelb.edu.au/
>>
>> -----BEGIN PGP SIGNATURE-----
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>> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>>
>> iEYEARECAAYFAk9HD1wACgkQO2KABBYQAh9EZgCcCz9x2i6KuE7/UpPzr194jHQD
>> rdcAni+dfEMhlqMzYMILn8jeS9yWlInu
>> =+rA4
>> -----END PGP SIGNATURE-----
>> _______________________________________________
>> devel mailing list
>> devel_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>

-- 
Paul H. Hargrove                          PHHargrove_at_[hidden]
Future Technologies Group
HPC Research Department                   Tel: +1-510-495-2352
Lawrence Berkeley National Laboratory     Fax: +1-510-486-6900