On Tue, Nov 11, 2008 at 7:12 AM, <[EMAIL PROTECTED]> wrote:
> Thanks john, i would like to send simple programs (jobs) to the nodes
> (diskless cpu server) of a 9grid from terminal, and get responses from
> them. How can i do it?
>
suppose you have a list of nodes
cpu% NODES=(a b c d)
cpu% echo $NODES
a b c d
cpu% for (i in $NODES) {
cpu -h $i -c some-command&
}
Go ahead. Try it!
for (i in $NODES) {
cpu -h $i -c date&
}
OK, now suppose you have what in the high end business is still called
an 'input deck'. It's in a weird place. You get to it by saying
some-command -i input-file
for (i in $NODES) {
cpu -h $i -c some-command -i your-file&
}
This will work whether there is a mount on those nodes for your home
directory or not. Comes free with cpu.
What if you for whatever reason want a ps to show all the proces on
all the nodes you're running on.
for (i in $NODES) {
import -a $i .com /proc /proc
}
Your /proc is now the unified /proc of all your nodes. (I used to do
this all the time with my plan 9 minicluster)
That way, if you want to kill all the some-commands running on ALL your nodes:
slay some-command | rc
The point being that you only need to run this command on the
front-end, not on each node.
You just can't even try to do this sort of thing with ssh.
ron
