问题
I'm trying to run my program using torque scheduler using mpi run. Though in my pbs file I load all the library by
export LD_LIBRARY_PATH=/path/to/library
yet it gives error i.e.
error while loading shared libraries: libarmadillo.so.3:
cannot open shared object file: No such file or directory.
I guess error lies in variable LD_LIBRARY_PATH not set in all the nodes. How would I make it work?
回答1:
LD_LIBRARY_PATH is not exported automatically to MPI processes, spawned by mpirun. You should use
mpirun -x LD_LIBRARY_PATH ...
to push the value of LD_LIBRARY_PATH. Also make sure that the specified path exists on all nodes in the cluster and that libarmadillo.so.3 is available everywhere.
回答2:
On some systems, your environment isn't always propagated via mpirun. You should set all those variables in your .bashrc file.
来源：https://stackoverflow.com/questions/11368215/loading-shared-library-in-open-mpi-mpi-run