We are trying to build Open MPI on a system that happens to have GPFS installed. This appears to cause Open MPI to detect gpfs.h and link against libgpfs.so. We are trying to build a central software stack for use on multiple clusters, some of which do not have GPFS. (It is our experience that this provokes an error, as libgpfs.so is not found on these clusters.) To accommodate this I want to build openmpi explicitly without linking against GPFS.
I tried to accomplish this with ./configure --with-io-romio-flags='--with-file-system=ufs+nfs' But gpfs was still linked. configure:397895: result: -lhwloc -ldl -lz -lpmi2 -lrt -lgpfs -lutil -lm -lfabric How can I tell Open MPI to not link against GPFS? ~jonathon p.s., I realize that I could just build on a system that does not have GPFS installed; but I am trying to genericize this to encapsulate in the Spack package. I also don't understand why the Spack package is detecting gpfs.h in the first place, as I thought Spack tries to isolate its build environment from the host system; but I'll ask them that in a separate message.
