Peter and all, an easier option is to configure Open MPI with --mpirun-prefix-by-default this will automagically add rpath to the libs.
Cheers, Gilles On Thu, Sep 14, 2017 at 6:43 PM, Peter Kjellström <c...@nsc.liu.se> wrote: > On Wed, 13 Sep 2017 20:13:54 +0430 > Mahmood Naderan <mahmood...@gmail.com> wrote: > ... >> `/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../lib64/libc.a(strcmp.o)' >> can not be used when making an executable; recompile with -fPIE and >> relink with -pie collect2: ld returned 1 exit status >> >> >> With such an error, I thought it is better to forget static linking! >> (as it is related to libc) and work with the shared libs and >> LD_LIBRARY_PATH > > First, I think giving up on static linking is the right choice. > > If the main thing you were after was the convenience of a binary that > will run without the need to setup LD_LIBRARY_PATH correctly you should > have a look at passing -rpath to the linker. > > In short, "mpicc -Wl,-rpath=/my/lib/path helloworld.c -o hello", will > compile a dynamic binary "hello" with built in search path > to "/my/lib/path". > > With OpenMPI this will be added as a "runpath" due to how the wrappers > are designed. Both rpath and runpath works for finding "/my/lib/path" > wihtout LD_LIBRARY_PATH but the difference is in priority. rpath is > higher priority than LD_LIBRARY_PATH etc. and runpath is lower. > > You can check your rpath or runpath in a binary using the command > chrpath (package on rhel/centos/... is chrpath): > > $ chrpath hello > hello: RUNPATH=/my/lib/path > > If what you really wanted is the rpath behavior (winning over any > LD_LIBRARY_PATH in the environment etc.) then you need to modify the > openmpi wrappers (rebuild openmpi) such that it does NOT pass > "--enable-new-dtags" to the linker. > > /Peter > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users
