From dblank at brynmawr.edu  Mon Oct  3 10:49:26 2005
From: dblank at brynmawr.edu (Douglas S. Blank)
Date: Mon Oct  3 10:49:31 2005
Subject: [Beowulf] dispatch command updated
Message-ID: <434144F6.8060407@brynmawr.edu>

Beowulf users,

Just a short note on a new dispatch command. It replaces the old 
dispatch and pdispatch commands. It works as follows.

dispatch [[flags]* [includes]* [excludes]*]* [command]+

The flags:

-p run in parallel
-d debug mode. don't actually do anything, just print out what it would do
-r report format (output all on one line per node)
-c add color to output
-u allow duplicate node numbers

The [includes] and [excludes] are either a single node number, a range, 
or a list:

singles: dispatch 2 4 6 7 uptime
range  : dispatch 1-48 uptime
list   : dispatch 2,3,4 uptime

includes are given by a positive prefix or none, excludes by a negative 
prefix. The set of nodes is built up in a left-to-right order.

dispatch 1-48 -10-20 15 uptime

This example will add all of the nodes, remove 10-20, and then add back 
in 15.

The old version:
    dispatch 1 48 -i 29,35,48 ls -al

The new version:
    dispatch 1-48 -29,35,48 ls -al

Other examples:
    dispatch -p -r 1 2 3 10-20 -15 30-40 -25 uname -a

-- 
Douglas S. Blank,         Assistant Professor
dblank@brynmawr.edu,            (610)526-6501
Bryn Mawr College,   Computer Science Program
101 North Merion Ave,       Park Science Bld.
Bryn Mawr, PA 19010  dangermouse.brynmawr.edu