I take this back entirely -- ignore everything I said.

There appear to be two problems:

- I borked up the libnuma configure.m4 such that mpicc (and friends) don't get the right flags for libnuma when you compile OMPI statically.

- James' problem seems to be somewhat different -- he's failing to link ompi_info in the OMPI build itself, but also because the appropriate -L and -l are not supplied. Although I can't get this to happen in any version that I have (they always get the Right -L and -l to find libnuma).

James: what command did you use to configure OMPI?



On Sep 14, 2005, at 7:45 PM, Jeff Squyres wrote:

On Sep 14, 2005, at 6:07 PM, Tim S. Woodall wrote:

Seriously, I can see your point, but I don't see an obvious fix -- we
don't check for the mode of the target library.  We just check that
"$CC testprogram.c -L/path/to/libnuma -lnuma" works properly (actually, this is how *all* checks are done in OMPI -- libnuma is somewhat of an
anomaly because most other packages/linux distros [depending on the
packaging] provide either just the .a or both the .a and the .so).

Brian / Ralf -- any ideas here?

Shouldn't the configure tests use the specified mode (e.g. static/dynamic)?

Yes and no. They're not quite the same thing -- we setup libtool to compile things in the desired mode(s), but libtool isn't really ready until configure completes.

Brian and Ralf are the experts here...

Is there a short-term workaround to disable numa support for a static build?

I'm guessing you had to specify --with-libnuma to find the library in the first place...? If so, just don't specify it; if libnuma is not in a standard location that is already searched by -L, then you'll have no problem (i.e., the libnuma component's configure will fail and it will automatically disqualify itself).

If, however, it does still find libnuma, you can specify --enable-mca-no-build=maffinity-libnuma.

--
{+} Jeff Squyres
{+} The Open MPI Project
{+} http://www.open-mpi.org/



--
{+} Jeff Squyres
{+} The Open MPI Project
{+} http://www.open-mpi.org/

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