Miguel Ángel Vázquez wrote: > Dear all, > > I am trying to run a C++ program which uses dynamic libraries under mpi. > > The compilation command looks like: > > mpiCC `pkg-config --cflags itpp` -o montecarlo montecarlo.cpp > `pkg-config --libs itpp` > > And it works if I executed it in one machine: > > mpirun -np 2 -H localhost montecarlo > > I tested this both in the "master node" and in the "compute nodes" and > it works. However, when I try to run it with two different machines: > > mpirun -np 2 -H localhost,hpcnode1 montecarlo > > The program claims that it can't find the shared libraries: > > montecarlo: error while loading shared libraries: libitpp.so.6: cannot > open shared object file: No such file or directory > > The LD_LIBRARY_PATH is set properly at every machine, any idea where the > problem is? I attached you the config.log and the result of the omp-info > --all > > Thank you in advance, > > Miguel
Miguel, Shells behave differently depending on whether it is an interactive login shell or a non-interactive shell. For example, the bash shell uses .bash_profile in case, but .bashrc in the other. Check the documentation for your shell and see what files it uses in each case, and make sure the non-login config file has the necessary settings for your MPI jobs. It sounds like your login shell environment is okay, but your non-login environment isn't setup correctly. This is a common problem. I use bash, and to keep it simple, my .bash_profile is just a symbolic link to .bashrc. That way, both shell types have the same environment. This isn't always a good idea, but in my case it's fine. -- Prentice
