Linux Certif

Toute la documentation sur la certification Linux LPI

wwmpirun

NAME

wwmpirun

DESCRIPTION

wwmpirun Is a wrapper for the systems mpirun command. It first locates the number of idle CPU's requested and then wraps the mpirun command so that the user doesn't have to locate free nodes to run jobs by hand.

OPTIONS

--np

Define the number of processes that you wish to launch. This is a required option.

-m --master

How many (if any) jobs do you wish to launch on the master. This is assumed to be none unless you are running a lam enviornment which requires the current node to be included (usually the master).

-l --lam

Use the LAM-MPI runtime enviornment (eg. lamboot/lamhalt).

-h --help

Show the help screen.

ENVIORNMENT

MPIRUN

The actual mpirun command that is intended to be wrapped. If undefined, this will default to 'mpirun' and will use the first one in the default path.

NODES

The NODES enviornment variable will limit which nodes are displayed. It can be used either as a list of nodes, seperated by commas, or pointed to a file which contains a list of node names. You can set it with the following syntax:

for bash:

export NODES=node0000,node0001,node0010,node0011

for (t)csh:

setenv NODES /path/to/node/list/file

AUTHOR

Warewulf is written and maintained by Greg M. Kurtzer <gmk@lbl.gov>, and hosted by Lawrence Berkeley National Labratory (http://www.lbl.gov).

http://warewulf-cluster.org/