Hello Larry,
I thank you for this helpful tip!
Regards and have a nice day,
Lukas
>________________________________
> Von: Larry Baker <baker_at_[hidden]>
>An: Open MPI Developers <devel_at_[hidden]>
>Cc: Lukas Razik <linux_at_[hidden]>; Roland Dreier <roland_at_[hidden]>
>Gesendet: 20:10 Mittwoch, 23.November 2011
>Betreff: Re: [OMPI devel] [BUG?] OpenMPI with openib on SPARC64: Signal: Bus error (10)
>
>
>I think of -m32 (and -m64) as really selecting a different compiler. My practice is to put those flags in the compiler/linker environment variables. For example:
>
>
># ./configure >configure.log 2>&1 \
>> --prefix=/usr/local/openmpi --with-sge \
>> CC="gcc -m32" \
>> CFLAGS="-g -O3" \
>> CXX="g++ -m32" \
>> CXXFLAGS="-g -O3" \
>> FC="gfortran -m32" \
>> FCFLAGS="-g -O3" \
>> F77="gfortran -m32" \
>> FFLAGS="-g -O3"
>
>
>Larry Baker
>US Geological Survey
>650-329-5608
>baker_at_[hidden]
>
>On 23 Nov 2011, at 10:52 AM, TERRY DONTJE wrote:
>
>On 11/23/2011 1:45 PM, Lukas Razik wrote:
>>TERRY DONTJE <terry.dontje_at_[hidden]> wrote
>>>Can you build OMPI as a 32 bit library and see if that works any better?
>>>So you mean I shall leave the whole OFED stack as 64 bit and build only openmpi as 32 bit?
I believe the OFED user libraries will need to be 32 bit also or the 32 bit MPI libraries will not be able to use them.
>>
>>How must I configure openmpi that it'll be definitely built as 32bit?
You need to change the CFLAGS, CXXFLAGS, FFLAGS and FCFLAGS in the configure line such that you replace "-m64" with "-m32" or just "-m32" if "-m64" is not there?
>>
>>Regards,
Lukas
>>
>>--
>>
>> <mime-attachment.gif>
>>
>>Terry D. Dontje | Principal Software Engineer
>>
>>Developer Tools Engineering | +1.781.442.2631
>> Oracle - Performance Technologies
>>95 Network Drive, Burlington, MA 01803
>>Email terry.dontje_at_[hidden]
>>
>>
>>
>>
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