Dear Open MPI developers,
I just want to point to a weird behavior of the configure procedure I
discovered. I am compiling Open MPI 1.7.4 with CUDA support (CUDA 6.0 RC) and
PGI 14.1
If I explicitly compile against a self-compiled version of HWLOC (1.8.1) using
this configure line
../configure CC=pgcc CXX=pgCC FC=pgf90 F90=pgf90
--prefix=/usr/local/Cluster-Users/fs395/openmpi-1.7.4/pgi-14.1_cuda-6.0RC
--enable-mpirun-prefix-by-default --with-fca=$FCA_DIR --with-mxm=$MXM_DIR
--with-knem=$KNEM_DIR
--with-hwloc=/usr/local/Cluster-Users/fs395/hwlock-1.8.1/gcc-4.4.7_cuda-6.0RC
--with-slurm=/usr/local/Cluster-Apps/slurm
--with-cuda=/usr/local/Cluster-Users/fs395/cuda/6.0-RC
make fails telling me that it cannot find "-lcudart".
If I compile without HWLOC using this configure line:
../configure CC=pgcc CXX=pgCC FC=pgf90 F90=pgf90
--prefix=/usr/local/Cluster-Users/fs395/openmpi-1.7.4/pgi-14.1_cuda-6.0RC
--enable-mpirun-prefix-by-default --with-fca=$FCA_DIR --with-mxm=$MXM_DIR
--with-knem=$KNEM_DIR --with-slurm=/usr/local/Cluster-Apps/slurm
--with-cuda=/usr/local/Cluster-Users/fs395/cuda/6.0-RC
make succeeds and I have Open MPI compiled properly.
$ mpif90 -show
pgf90
-I/usr/local/Cluster-Users/fs395/openmpi-1.7.4/pgi-14.1_cuda-6.0RC/include
-I/usr/local/Cluster-Users/fs395/openmpi-1.7.4/pgi-14.1_cuda-6.0RC/lib
-Wl,-rpath
-Wl,/usr/local/Cluster-Users/fs395/openmpi-1.7.4/pgi-14.1_cuda-6.0RC/lib
-L/usr/local/Cluster-Users/fs395/openmpi-1.7.4/pgi-14.1_cuda-6.0RC/lib
-lmpi_usempif08 -lmpi_usempi_ignore_tkr -lmpi_mpifh -lmpi
$ ompi_info --all | grep btl_openib_have_cuda_gdr
MCA btl: informational "btl_openib_have_cuda_gdr" (current
value: "true", data source: default, level: 5 tuner/detail, type: bool)
I wonder why the configure picks up lib instead of lib64. I will test the build
using real codes.
Cheers,
Filippo
--
Mr. Filippo SPIGA, M.Sc.
http://www.linkedin.com/in/filippospiga ~ skype: filippo.spiga
«Nobody will drive us out of Cantor's paradise.» ~ David Hilbert
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