Received from Rolf vandeVaart on Wed, Apr 29, 2015 at 11:14:15AM EDT: > > >-----Original Message----- > >From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Lev Givon > >Sent: Wednesday, April 29, 2015 10:54 AM > >To: us...@open-mpi.org > >Subject: [OMPI users] getting OpenMPI 1.8.4 w/ CUDA to look for absolute > >path to libcuda.so.1 > > > >I'm trying to build/package OpenMPI 1.8.4 with CUDA support enabled on Linux > >x86_64 so that the compiled software can be downloaded/installed as one of > >the dependencies of a project I'm working on with no further user > >configuration. I noticed that MPI programs built with the above will try to > >access /usr/lib/i386-linux-gnu/libcuda.so.1 (and obviously complain about it > >being the wrong ELF class) if /usr/lib/i386-linux-gnu precedes > >/usr/lib/x86_64-linux-gnu in one's ld.so cache. While one can get around this > >by modifying one's ld.so configuration (or tweaking LD_LIBRARY_PATH), is > >there some way to compile OpenMPI such that programs built with it (on > >x86_64) look for the full soname of libcuda.so.1 - i.e., > >/usr/lib/x86_64-linux-gnu/libcuda.so.1 - rather than fall back on ld.so? I > >tried setting the rpath of MPI programs built with the above (by modifying > >the OpenMPI compiler wrappers to include -Wl,-rpath - > >Wl,/usr/lib/x86_64-linux-gnu), but that doesn't seem to help. > > Hi Lev: > Any chance you can try Open MPI 1.8.5rc3 and see if you see the same behavior? > That code has changed a bit from the 1.8.4 series and I am curious if you will > still see the same issue. > > http://www.open-mpi.org/software/ompi/v1.8/downloads/openmpi-1.8.5rc3.tar.gz
The issue does not occur with 1.8.5rc3 using the same configure options as used with 1.8.4. Since 1.8.5 is almost ready for stable release, I'll switch over now. Thanks! -- Lev Givon Bionet Group | Neurokernel Project http://www.columbia.edu/~lev/ http://lebedov.github.io/ http://neurokernel.github.io/
