HP-MPI User's Guide (11th Edition)

Understanding HP-MPI
MPI options
Chapter 3122
representing how many bits are to be matched. So, for
example, a mask of "11" would be equivalent to a mask
of "255.224.0.0".
If an IP and mask are given, then it is expected that
one and only one IP will match at each lookup. An error
or warning is printed as appropriate if there are no
matches, or too many. If no mask is specified, then the
IP matching will simply be done by the longest
matching prefix.
This functionality can also be accessed using the
environment variable MPI_NETADDR.
-subnet Allows the user to select which default interconnect
should be used for communication for TCP/IP. The
interconnect is chosen by using the subnet associated
with the hostname or IP address specified with
-subnet.
% $MPI_ROOT/bin/mpirun -subnet \
<hostname-or-IP-address>
This option will be deprecated in favor of -netaddr in a
future release.
Launching specifications options
Job launcher/scheduler
Options for LSF users
These options launch ranks as they are in appfile mode on the hosts
specified in the environment variable.
-lsb_hosts Launches the same executable across multiple hosts.
Uses the list of hosts in the environment variable
$LSB_HOSTS. Can be used with -np option.
-lsb_mcpu_hosts Launches the same executable across multiple hosts.
Uses the list of hosts in the environment variable
$LSB_MCPU_HOSTS. Can be used with -np option.
Options for prun users
-prun Enables start-up with Elan usage. Only supported
when linking with shared libraries. Some features like
mpirun -stdio processing are unavailable. The -np