Hi Barry, Thanks for the inputs.
I did try that, but the debugger (gdb) stepped right over the dgeev_ call, without getting inside the function. I am wondering if this has anything to do with the fact that the system lapack library might not have any debugging info in it. Thoughts? Regards, Manav > On Apr 7, 2017, at 2:40 PM, Barry Smith <[email protected]> wrote: > > >> On Apr 7, 2017, at 1:46 PM, Manav Bhatia <[email protected]> wrote: >> >> Hi, >> >> I have compile petsc on my Ubuntu machine (also Mac OS 10.12 separately) >> to link to the system lapack and blas libraries (shown below). >> >> I have created an interface class to dgeev in lapack to calculate the >> eigenvalues of a matrix. >> >> My application code links to multiple libraries: libMesh, petsc, slepc, >> hdf5, etc. >> >> If I test my interface inside this application code, I get junk results. > > This is easy to debug because you have a version that works. > > Run both versions in separate windows each in a debugger and put a break > point in the dgeev_ function. When it gets there check that it is the same > dgeev_ function in both cases and check that the inputs are the same then > step through both to see when things start to change between the two. > >> >> However, on the same machine, if I use the interface in a separate main() >> function without linking to any of the libraries except lapack and blas, >> then I get expected results. >> >> Also, this problem does not show up on Mac. >> >> I am not sure what could be causing this and don’t quite know where to >> start. Could Petsc have anything to do with this? >> >> Any insight would be greatly appreciated. >> >> Regards, >> Manav >> >> manav@manav1:~/test$ ldd /opt/local/lib/libpetsc.so >> linux-vdso.so.1 => (0x00007fff3e7a8000) >> libsuperlu_dist.so.5 => /opt/local/lib/libsuperlu_dist.so.5 >> (0x00007f721fbd1000) >> libparmetis.so => /opt/local/lib/libparmetis.so (0x00007f721f990000) >> libmetis.so => /opt/local/lib/libmetis.so (0x00007f721f718000) >> libsuperlu.so.5 => /opt/local/lib/libsuperlu.so.5 (0x00007f721f4a7000) >> libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 >> (0x00007f721f124000) >> liblapack.so.3 => /usr/lib/liblapack.so.3 (0x00007f721e92c000) >> libblas.so.3 => /usr/lib/libblas.so.3 (0x00007f721e6bd000) >> libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 >> (0x00007f721e382000) >> libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f721e079000) >> libmpi_mpifh.so.12 => /usr/lib/libmpi_mpifh.so.12 (0x00007f721de20000) >> libgfortran.so.3 => /usr/lib/x86_64-linux-gnu/libgfortran.so.3 >> (0x00007f721daf4000) >> libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f721d8f0000) >> libmpi.so.12 => /usr/lib/libmpi.so.12 (0x00007f721d61a000) >> libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 >> (0x00007f721d403000) >> libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 >> (0x00007f721d1e6000) >> libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f721ce1d000) >> /lib64/ld-linux-x86-64.so.2 (0x000055d739f1b000) >> libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 >> (0x00007f721cbcf000) >> libopen-pal.so.13 => /usr/lib/libopen-pal.so.13 (0x00007f721c932000) >> libquadmath.so.0 => /usr/lib/x86_64-linux-gnu/libquadmath.so.0 >> (0x00007f721c6f2000) >> libibverbs.so.1 => /usr/lib/libibverbs.so.1 (0x00007f721c4e3000) >> libopen-rte.so.12 => /usr/lib/libopen-rte.so.12 (0x00007f721c269000) >> libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 >> (0x00007f721c064000) >> libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 >> (0x00007f721be5e000) >> librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f721bc56000) >> libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f721ba52000) >> libhwloc.so.5 => /usr/lib/x86_64-linux-gnu/libhwloc.so.5 >> (0x00007f721b818000) >> libnuma.so.1 => /usr/lib/x86_64-linux-gnu/libnuma.so.1 >> (0x00007f721b60c000) >> libltdl.so.7 => /usr/lib/x86_64-linux-gnu/libltdl.so.7 >> (0x00007f721b402000) >> >
