> On Apr 7, 2017, at 2:57 PM, Manav Bhatia <bhatiama...@gmail.com> wrote: > > 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.
Did it at least stop at the function so you do an up and print all the arguments passed in? > > 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. Yeah I forgot it might not have them. Barry > > Thoughts? > > Regards, > Manav > >> On Apr 7, 2017, at 2:40 PM, Barry Smith <bsm...@mcs.anl.gov> wrote: >> >> >>> On Apr 7, 2017, at 1:46 PM, Manav Bhatia <bhatiama...@gmail.com> 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) >>> >> >
