When i use the function comm_spawn ,it can not to be work on an off-line host.
but it can run well when the network is connected using a fault configure.
on the page http://www.open-mpi.org/community/lists/users/2010/01/11825.php
it says"Shared memory doesn't extend between comm_spawn'd parent/child processes in Open MPI. Perhaps someday it will, but not yet."
How can i run comm_spawn on an off-line host?