On Jul 22, 2009, at 10:05 AM, vipin kumar wrote:
> Actually requirement is how a C/C++ program running in "master" node
> should find out whether "slave" node is reachable (as we check this
> using "ping" command) or not ? Because IP address may change at any
> time, that's why I am trying to achieve this using "host name" of
> the "slave" node. How this can be done?
Are you asking to find out this information before issuing "mpirun"?
Open MPI does assume that the nodes you are trying to use are reachable.