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> 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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