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Subject: Re: [OMPI users] libnuma under ompi 1.3
From: Ralph Castain (rhc_at_[hidden])
Date: 2009-03-04 11:39:41


Problem is that some systems install both 32 and 64 bit support, and
build OMPI both ways. So we really can't just figure it out without
some help.

At our location, we simply take care to specify the -L flag to point
to the correct version so we avoid any confusion.

On Mar 4, 2009, at 8:37 AM, Prentice Bisbal wrote:

> Jeff,
>
> See my reply to Dr. Frankcombe's original e-mail. I've experienced
> this
> same problem with the PGI compilers, so this isn't limited to just the
> Intel compilers. I provided a fix, but I think OpenMPI should be
> able to
> figure out and add the correct linker flags during the
> configuration/build stage.
>
> Jeff Squyres wrote:
>> Hmm; that's odd.
>>
>> Is icc / icpc able to find libnuma with no -L, but ifort is unable to
>> find it without a -L?
>>
>> On Mar 3, 2009, at 10:00 PM, Terry Frankcombe wrote:
>>
>>> Having just downloaded and installed Open MPI 1.3 with ifort and
>>> gcc, I
>>> merrily went off to compile my application.
>>>
>>> In my final link with mpif90 I get the error:
>>>
>>> /usr/bin/ld: cannot find -lnuma
>>>
>>> Adding --showme reveals that
>>>
>>> -I/home/terry/bin/Local/include -pthread -I/home/terry/bin/Local/lib
>>>
>>> is added to the compile early in the aggregated ifort command, and
>>>
>>> -L/home/terry/bin/Local/lib -lmpi_f90 -lmpi_f77 -lmpi -lopen-rte
>>> -lopen-pal -lpbs -lnuma -ldl -Wl,--export-dynamic -lnsl -lutil -lm
>>> -ldl
>>>
>>> is added to the end.
>>>
>>> I note than when compiling Open MPI -lnuma was visible in the gcc
>>> arguments, with no added -L.
>>>
>>> On this system libnuma.so exists in /usr/lib64. My (somewhat long!)
>>> configure command was
>>>
>>> ./configure --enable-static --disable-shared
>>> --prefix=/home/terry/bin/Local --enable-picky --disable-
>>> heterogeneous
>>> --without-slurm --without-alps --without-xgrid --without-sge
>>> --without-loadleveler --without-lsf F77=ifort
>>>
>>>
>>> Should mpif90 have bundled a -L/usr/lib64 in there somewhere?
>>>
>>> Regards
>>> Terry
>>>
>>>
>>> --
>>> Dr. Terry Frankcombe
>>> Research School of Chemistry, Australian National University
>>> Ph: (+61) 0417 163 509 Skype: terry.frankcombe
>>
>
>
> --
> Prentice
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