From LQWiki

ClusterKnoppix is a modified Knoppix distro using the OpenMosix kernel.

Features:

• OpenMosix terminal server - uses PXE, DHCP and tftp to boot GNU/Linux clients via the network.
• No cdrom drive/hard disk/floppy needed for the clients
• openMosix auto discovery - new nodes automatically join the cluster (no configuration needed)
• Cluster Management tools - openMosix userland/openMosixview Every node has root access to every other node via ssh/RSAkeys
• MFS/dfsa support - all nodes access to all node file systems on top of this cluster file system
• Every node can run full blown X (PC-room/demo setup) or console only (more memory available)

• bofh.be/clusterknoppix Official website

(distribution description from Homepage)