PVM with a Scyld cluster

[keith.mcdonald-fct at btinternet.com]

Robert Sands wrote:

I have a customer that is more familiar with using pvm rather 
than mpi so I need
some instructions on how to get pvm working with the SCYLD 
cluster.  Is there
anyone out there using pvm on a scyld cluster and if so can I get 
instructions
to get pvm to work with the cluster?

I found one way to run PVM.

On the Master, edit the inetd.conf and uncomment the rshd and 
rlogin parts. 
Issue
a 'killall -HUP inetd.conf' to re-read the file.

Prepare a suitable /etc/exports file to allow the nodes to have 
nfs access. 
You
will need to stop and restart nfs to re-read the new exports 
file.

Prepare a suitable .rhosts file in $HOME to rsh without a 
password.

The following commands should then be run:

bpsh <n> hostname <hostname> for each of your nodes. I do this 
for
friendliness though it is not necessary. You will need a suitable 
/etc/hosts 
file if
you use this method.

Mount the following:

bpsh -a mount -t nfs -n 192.168.1.1:/home /home (if not mounted 
already)
bpsh -a mount -t nfs -n 192.168.1.1:/etc /etc
bpsh -a mount -t nfs -n 192.168.1.1:/bin /bin
bpsh -a mount -t nfs -n 192.168.1.1:/usr /usr
bpsh -a mount -t nfs -n 192.168.1.1:/lib /lib

The -n flag stops any problems with mtab.

Run bpsh -a /usr/sbin/inetd

Start a pvm session on the master and then add your nodes by 
hostname. Once 
done,
check pvm>conf to see that all is in order.

This is very much the long way round and should really be 
scripted!

I hope that this helps,

Keith McDonald