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It could well be because of the additional dlopen in your application (we changed some things from the 1.2 series with regards to this kind of stuff).
Try configuring Open MPI with the --disable-visibility switch and see if that helps.
On Apr 17, 2010, at 9:05 PM, Nev wrote:
> I am having a problem running application with OpenMpi version 1.4.1.
> The system works with version 1.2.7, but fails with version 1.3.4 and
> 1.4.1. (These are the only version I have tried).
> My application is linked against a shared library which does a dlopen of
> a 2nd shared "C" library which is compiled and linked using mpicc. The
> application and first shared library are C++.
> I rebuild and relink the 2nd shared library each time I change the
> openmpi build.
> When MPI_init is called I get the following error
> symbol lookup error: /opt/openmpi/lib/openmpi/mca_paffinity_linux.so:
> undefined symbol: mca_base_param_reg_int
> This does NOT occur with OpenMpi version 1.2.7, Or if I build OpenMpi as
> a static library, and then link against this static library.
> I am building a default openmpi except for --prefix=/opt/openmpi and
> --enable-static --disable-shared for static library build.
> I would link to be able to use non static openmpi build.
> Any suggestion on what I am doing wrong?
> Thanks Nev
> users mailing list
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