On Dec 19, 2013, at 2:57 PM, Tim Miller <btamil...@gmail.com> wrote:
> Hi All, > > I have a question similar (but not identical to) the one asked by Tom Fogel a > week or so back... > > I have a code that uses MPI_Comm_spawn to launch different processes. The > executables for these use libraries in non-standard locations, so what I've > done is add the directories containing them to my LD_LIBRARY_PATH environment > variable, and then calling mpirun with "-x LD_LIBRARY_PATH". This works well > for me on OpenMPI 1.6.3 and earlier. However, I've been playing with OpenMPI > 1.7.3 and this no longer seems to work. As soon as my code MPI_Comm_spawns, > all the spawned processes die complaining that they can't find the correct > libraries to start the executable. > > Has there been a way that exported variables are passed to spawned processes > between OpenMPI 1.6 and 1.7? Not intentionally, though it is possible that some bug crept into the code. If I understand correctly, the -x values are being seen by the original procs, but not by the comm_spawned ones? > Is there something else I'm doing wrong here? > > Best Regards, > Tim > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
