Hi, > Am 28.11.2017 um 15:58 schrieb Vanzo, Davide <davide.va...@vanderbilt.edu>: > > Hello all, > I am having a very weird problem with mpifort that I cannot understand. > I am building OpenMPI 1.10.3 with GCC 5.4.0 with EasyBuild and everything > goes fine until I try to use mpifort to build any MPI Fortran code, which > fails with the error log you see below. > The thing I do not understand is why the linker searches for libgfortran.so > in /usr/lib64 instead of the actual GCC installation path, where the file is > actually located. Both LD_LIBRARY_PATH and LIBRARY_PATH contain the correct > path to the library. The gfortran compiler works correctly for compiling > serial code. > Attached you can also find the ourput of the same command with LD_DEBUG=1. > Any idea what is going wrong?
Although 1.10.3 is outdated and the use of a newer Open MPI version advisable, the culprit seems to lie in: > cannot open /usr/lib64/libgfortran.so: No such file or directory Does this symbolic link exist? Does it point to your installed one too? Maybe the developer package of GCC 5.4.0 is missing. Hence it looks for libgfortran.so somewhere else and finds only a broken symbolic link. -- Reuti > Thank you for your help! > > $ ll /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib64/libgfortran.so > lrwxrwxrwx 1 buildbot buildbot 20 Nov 27 18:44 > /accre/arch/easybuild/software/Core/GCCcore/5.4.0/lib64/libgfortran.so -> > libgfortran.so.3.0.0 > > $ mpifort multitask_mpi.f90 > /accre/arch/easybuild/software/Compiler/GCCcore/5.4.0/binutils/2.26/bin/ld.gold: > error: cannot open /usr/lib64/libgfortran.so: No such file or directory > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_date_and_time' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_st_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_transfer_integer_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_string_trim' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_transfer_character_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_transfer_integer_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_transfer_integer_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_transfer_character_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_transfer_integer_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_transfer_character_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_transfer_character_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_string_trim' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function timestamp_: error: undefined > reference to '_gfortran_st_write_done' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function p0_receive_output_: error: > undefined reference to '_gfortran_st_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function p0_receive_output_: error: > undefined reference to '_gfortran_st_write_done' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function p0_receive_output_: error: > undefined reference to '_gfortran_st_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function p0_receive_output_: error: > undefined reference to '_gfortran_st_write_done' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function p0_receive_output_: error: > undefined reference to '_gfortran_st_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function p0_receive_output_: error: > undefined reference to '_gfortran_st_write_done' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function MAIN__: error: undefined reference > to '_gfortran_stop_string' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function MAIN__: error: undefined reference > to '_gfortran_transfer_real_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function MAIN__: error: undefined reference > to '_gfortran_stop_string' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function MAIN__: error: undefined reference > to '_gfortran_transfer_real_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function MAIN__: error: undefined reference > to '_gfortran_stop_string' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function MAIN__: error: undefined reference > to '_gfortran_transfer_real_write' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function MAIN__: error: undefined reference > to '_gfortran_stop_string' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function main: error: undefined reference > to '_gfortran_set_args' > /tmp/ccpSxqE6.o:multitask_mpi.f90:function main: error: undefined reference > to '_gfortran_set_options' > collect2: error: ld returned 1 exit status > -- > 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 > <ld_debug.out>_______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users
