Are they using a different version of gfortran to compile / link their application than what was used to compile / build Open MPI?
FWIW: it's typically easier to use the same compilers to build Open MPI as the application. On Jun 14, 2011, at 12:02 PM, Michael Cugley wrote: > I do IT support for people who are using OpenMPI for research. However, they > are reporting the following warnings when compiling code with mpif90: > > /usr/bin/ld: warning: libgfortran.so.1, needed by > /usr/lib64/openmpi/1.4-gcc/lib/libmpi_f90.so, may conflict with > libgfortran.so.3 > > Running ldd on the resulting executable gives: > > libmpi_f90.so.0 => /usr/lib64/openmpi/1.4-gcc/lib/libmpi_f90.so.0 > (0x00002b5aac251000) > libmpi_f77.so.0 => /usr/lib64/openmpi/1.4-gcc/lib/libmpi_f77.so.0 > (0x00002b5aac454000) > libmpi.so.0 => /usr/lib64/openmpi/1.4-gcc/lib/libmpi.so.0 > (0x0000003df3600000) > libopen-rte.so.0 => /usr/lib64/openmpi/1.4-gcc/lib/libopen-rte.so.0 > (0x0000003df1a00000) > libopen-pal.so.0 => /usr/lib64/openmpi/1.4-gcc/lib/libopen-pal.so.0 > (0x0000003df1e00000) > libdl.so.2 => /lib64/libdl.so.2 (0x0000003df2e00000) > libnsl.so.1 => /lib64/libnsl.so.1 (0x0000003df2200000) > libutil.so.1 => /lib64/libutil.so.1 (0x0000003dff400000) > libgfortran.so.3 => /usr/lib64/libgfortran.so.3 (0x00002b5aac6a3000) > libm.so.6 => /lib64/libm.so.6 (0x0000003df2a00000) > libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003e02c00000) > libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003df3200000) > libc.so.6 => /lib64/libc.so.6 (0x0000003df2600000) > libgfortran.so.1 => /usr/lib64/libgfortran.so.1 (0x00002b5aac999000) > /lib64/ld-linux-x86-64.so.2 (0x0000003df1600000) > > It looks like there are attempts to link to two versions of libgfortran, > which aren't compatible. > > I'm not familiar with OpenMPI myself, but the people using it would like to > know how these warnings can be dealt with. > > -- > Michael Cugley > School of Engineering IT Support > m.cug...@eng.gla.ac.uk > > Please direct IT support queries to itsupp...@eng.gla.ac.uk > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
