Hi Jeff, The command "env | grep OMPI" output nothing but a blank line from my script. Anything I should set for mpirun?
On the other hand, you may get reminded that I found you discussed some similar issue with Jonathan Dursi. The difference is that when I tried with --mca btl_sm_num_fifos #(np-1), it does not work with me, and I did find those files in the tmp directory that sm mmaped in(shared_mem_pool.ibnode001, etc), but for some mysterious reason, it hang at MPI_Init, so these files are created when we call MPI_Init? Thanks, Yiguang
