FWIW, adding -L/usr/lib or -L/usr/lib64 is generally considered Bad, because it may usurp the default linker path order.
I note that you're using Open MPI 1.10.3 -- if you're unwilling/unable to upgrade to Open MPI 3.0.x, could you upgrade to Open MPI 1.10.7? We may well have fixed the issue in that time (i.e., do not have mpifort add -L/usr/lib64 to the command line). > On Nov 29, 2017, at 11:30 AM, Vanzo, Davide <davide.va...@vanderbilt.edu> > wrote: > > Thank you Åke, Reuti and Thomas for your replies. > > Just to clarify. The reason why /usr/lib64/libgfortran.so does not exist is > intentional because on our cluster we use a minimal CentOS installation and > all libraries are provided through the software stack built via EasyBuild on > a non-system path. > > The output of `mpifort -show` shows the correct executable for `gfortran` ( I > checked with `which gfortran`): > > $ mpifort multitask_mpi.f90 -show > gfortran multitask_mpi.f90 > -I/accre/arch/easybuild/software/Compiler/GCC/5.4.0-2.26/OpenMPI/1.10.3/include > -I/accre/arch/easybuild/software/Compiler/GCC/5.4.0-2.26/OpenMPI/1.10.3/lib > -L/usr/lib64 -Wl,-rpath -Wl,/usr/lib64 -Wl,-rpath > -Wl,/accre/arch/easybuild/software/Compiler/GCC/5.4.0-2.26/OpenMPI/1.10.3/lib > -Wl,--enable-new-dtags > -L/accre/arch/easybuild/software/Compiler/GCC/5.4.0-2.26/OpenMPI/1.10.3/lib > -lmpi_usempif08 -lmpi_usempi_ignore_tkr -lmpi_mpifh -lmpi > > > If I try to compile the source code with the explicit command after removing > the `-L/usr/lib64` flag it compiles, links and executes correctly. > > For the sake of testing I have built OpenMPI in the same exact way on another > machine with the same minimal OS. The only difference (at least that I am > aware of) is the root prefix of the installation path. In this case it works > correctly even without removing `-L/usr/lib64`. > > To try to better understand, I have launched `mpifort -v`. Below you can find > the paths in COMPILER_PATH and LIBRARY_PATH for both systems. > Take into account that on the broken system `/accre/arch` is a symlink to > `/gpfs22/accre/optimized/haswell`. But I do not see how this can be the > problem... > > > Working system: > > COMPILER_PATH > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/libexec/gcc/x86_64-unknown-linux-gnu/5.4.0/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/libexec/gcc/x86_64-unknown-linux-gnu/5.4.0/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/libexec/gcc/x86_64-unknown-linux-gnu/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib/gcc/x86_64-unknown-linux-gnu/5.4.0/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib/gcc/x86_64-unknown-linux-gnu/ > > LIBRARY_PATH > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib64/../lib64/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib/../lib64/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib/gcc/x86_64-unknown-linux-gnu/5.4.0/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib/gcc/x86_64-unknown-linux-gnu/5.4.0/../../../../lib64/ > /lib/../lib64/ > /usr/lib/../lib64/ > /accre/arch/easybuild/software/Compiler/GCC/5.4.0-2.26/OpenMPI/1.10.3/lib/ > /accre/arch/easybuild/software/Compiler/GCC/5.4.0-2.26/hwloc/1.11.3/lib/ > /accre/arch/easybuild/software/Compiler/GCCcore/5.4.0/numactl/2.0.11/lib/ > /accre/arch/easybuild/software/Compiler/GCCcore/5.4.0/binutils/2.26/lib/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib64/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib/gcc/x86_64-unknown-linux-gnu/5.4.0/../../../ > /lib/ > /usr/lib/ > > > Broken system: > > COMPILER_PATH > /gpfs22/accre/optimized/haswell/easybuild/software/Core/GCCcore/5.4.0/bin/../libexec/gcc/x86_64-unknown-linux-gnu/5.4.0/ > /gpfs22/accre/optimized/haswell/easybuild/software/Core/GCCcore/5.4.0/bin/../libexec/gcc/ > > LIBRARY_PATH > /gpfs22/accre/optimized/haswell/easybuild/software/Core/GCCcore/5.4.0/bin/../lib/gcc/x86_64-unknown-linux-gnu/5.4.0/ > /gpfs22/accre/optimized/haswell/easybuild/software/Core/GCCcore/5.4.0/bin/../lib/gcc/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib64/../lib64/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib/../lib64/ > /gpfs22/accre/optimized/haswell/easybuild/software/Core/GCCcore/5.4.0/bin/../lib/gcc/x86_64-unknown-linux-gnu/5.4.0/../../../../lib64/ > /lib/../lib64/ > /usr/lib/../lib64/ > /accre/arch/easybuild/software/Compiler/GCC/5.4.0-2.26/OpenMPI/1.10.3/lib/ > /accre/arch/easybuild/software/Compiler/GCC/5.4.0-2.26/hwloc/1.11.3/lib/ > /accre/arch/easybuild/software/Compiler/GCCcore/5.4.0/numactl/2.0.11/lib/ > /accre/arch/easybuild/software/Compiler/GCCcore/5.4.0/binutils/2.26/lib/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib64/ > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib/ > /gpfs22/accre/optimized/haswell/easybuild/software/Core/GCCcore/5.4.0/bin/../lib/gcc/x86_64-unknown-linux-gnu/5.4.0/../../../ > /lib/ > /usr/lib/ > > > > -- > Davide Vanzo, PhD > Application Developer > Adjunct Assistant Professor of Chemical and Biomolecular Engineering > Advanced Computing Center for Research and Education (ACCRE) > Vanderbilt University - Hill Center 201 > (615)-875-9137 > www.accre.vanderbilt.edu > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users -- Jeff Squyres jsquy...@cisco.com _______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users
