I'm having some trouble making multiple copies of George's new fatorer run on a dual P4 Xeon. To make it easier to run a number og prp/sieve/factoring jobs on a bunch of machines, I've created some scripts to start the programs on a given machine.
My scripts for starting the new factorer looks like this:
Code:
#! /bin/sh
cd ~/17orbust/p-1_1
./mprime -A1 &
and
Code:
#! /bin/sh
cd ~/17orbust/p-1_2
./mprime -A2 &
(I left out the parts that just makes it easier for me to keep track of which jobs run on which machines and vice versa)

When I try to run these two scripts on the same machine (called shannon), the following happens:
Code:
grove@galois > ./on shannon p-1_1
grove@galois > ./on shannon p-1_2
grove@galois > Another mprime is already running!
What am I doing wrong? Or is it just totally impossible to run multiple copies?