Can you provide a sample of the valgrind output ? I do not believe there should be any hex there
Cheers, Gilles On Friday, September 30, 2016, Emani, Murali <ema...@llnl.gov> wrote: > Thanks Gilles,I’ve tried using these options but still cannot get the > trace in the source code. > > — > Murali > > > From: devel <devel-boun...@lists.open-mpi.org > <javascript:_e(%7B%7D,'cvml','devel-boun...@lists.open-mpi.org');>> on > behalf of Gilles Gouaillardet <gilles.gouaillar...@gmail.com > <javascript:_e(%7B%7D,'cvml','gilles.gouaillar...@gmail.com');>> > Reply-To: Open MPI Developers <devel@lists.open-mpi.org > <javascript:_e(%7B%7D,'cvml','devel@lists.open-mpi.org');>> > Date: Wednesday, September 28, 2016 at 3:22 PM > To: Open MPI Developers <devel@lists.open-mpi.org > <javascript:_e(%7B%7D,'cvml','devel@lists.open-mpi.org');>> > Subject: Re: [OMPI devel] Memory trace using valgrind in OpenMPI > > Hi, > > you might want to rebuild Open MPI with the previous configure command > line, and append > --disable-dlopen CFLAGS='-g -O0' > > by default, components are built into their own lib (for example > mca_btl_tcp.so) which is dlopen'ed and dlclose'd at runtime, and that might > not be supported by post mortem tools > > Cheers, > > Gilles > > On Thursday, September 29, 2016, Emani, Murali <ema...@llnl.gov > <javascript:_e(%7B%7D,'cvml','ema...@llnl.gov');>> wrote: > >> Hi all, >> >> I am trying to perform memory allocation analysis in OpenMPI using >> *valgrind* and use *addr2line* to get the location in the source code in >> the application and the library. >> >> I have compiled OpenMPI with valgrind using >> >> ./configure —prefix=<*path>* —enable-debug —enable-mem-debug >> —enable-memchecker —with-valgrind=/*path-to-valgrind*/ >> >> I compile and run the sample code, myapp.c as >> mpicc –g myapp.c –o myapp >> mpirun –np <*num_processes*> valgrind *<valgrind-options>* ./myapp >> >> The valgrind output yields hex codes and I try to retrieve the line in >> the source code using *addr2line. *This yields the exact line in the >> source code of myapp.c but not in OpenMPI source. I was expecting it to >> get the exact location and line numbers in OpenMPI too as it is compiled >> with debug info enabled. >> >> Can someone provide any pointers if this is the correct way or/and how to >> achieve this? >> >> — >> Murali >> >>
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