Have you ever been in a position where you needed to run an MPI application a few times, but not enough times to justify buying your own cluster? Do you have access to a few PCs, but can’t or don’t want to install any software such as Condor on them? Then maybe you could use Parallel Knoppix.
Parallel Knoppix is a bootable CD for running MPI applications on a network of workstations. It’s a Linux distribution that executes the common steps for determining hardware and configuring devices. As of this writing, there is no 64-bit version of it, though that may change in the future. The disc image can be downloaded from the project’s website, or may be purchased from LinuxCD.org.