Terry Frankcombe wrote: > Having just downloaded and installed Open MPI 1.3 with ifort and gcc, I > merrily went off to compile my application. > > In my final link with mpif90 I get the error: > > /usr/bin/ld: cannot find -lnuma > > Adding --showme reveals that > > -I/home/terry/bin/Local/include -pthread -I/home/terry/bin/Local/lib > > is added to the compile early in the aggregated ifort command, and > > -L/home/terry/bin/Local/lib -lmpi_f90 -lmpi_f77 -lmpi -lopen-rte > -lopen-pal -lpbs -lnuma -ldl -Wl,--export-dynamic -lnsl -lutil -lm -ldl > > is added to the end. > > I note than when compiling Open MPI -lnuma was visible in the gcc > arguments, with no added -L. > > On this system libnuma.so exists in /usr/lib64. My (somewhat long!) > configure command was > > ./configure --enable-static --disable-shared > --prefix=/home/terry/bin/Local --enable-picky --disable-heterogeneous > --without-slurm --without-alps --without-xgrid --without-sge > --without-loadleveler --without-lsf F77=ifort > > > Should mpif90 have bundled a -L/usr/lib64 in there somewhere? > > Regards > Terry > >
I had the same exact problem with my PGI compilers, (no problems reported yet with my intel compilers). I have a fix for you. You would think that the compiler would automatically look in /usr/lib64, since that's one of the system's default lib directories, but the PGI compilers don't for some reason. A quick fix is to do OMPI_LDFLAGS="-L/usr/lib64" or OMPI_MPIF90_LDFLAGS="-L/usr/lib64" A more permanent fix is to edit INSTALL_DIR/share/openmpi/mpif90-wrapper-data.txt and change linker_flags= to linker_flags=-L/usr/lib64 In my case, I also had to add the OpenMPI lib directory for the PGI compilers, too. You may or may not need to add them, too: linker_flags=-L/usr/lib64 -L/usr/local/openmpi/pgi/x86_64/lib You may want to test all your compilers and makea similar change to all your *wrapper-data.txt files Not sure if this is a problem with the compilers not picking up the system's lib dirs, or an OpenMPI configuration/build problem. -- Prentice
