PlumpOS is described as 'mini linux distribution aimed at an easy way to add nodes to an openMosix cluster without a lot of work or even thought'. There are five alternatives to PlumpOS for Linux, CentOS and Knoppix. The best alternative is FlashMob ISO, which is both free and Open Source. Other great apps like PlumpOS are CHAOS (Free), ClusterKnoppix (Free), PelicanHPC (Free, Open Source) and Rocks (Free, Open Source).
FlashMob Computing started as a challenge. Could we convince enough people to bring their conventional computers to a single location in order to build a temporary supercomputer, one that could compete with the fastest and most expensive computers in the world?
Objective: Cluster platform :: To create a cluster platform capable of large-scale ad-hoc cluster deployment and to be the fastest, most compact, secure and straight-forward openMosix cluster platform available.
PelicanHPC is a Debian-based live CD image with a goal to make it simple to set up a high performance computing cluster. The front-end node (either a real computer or a virtual machine) boots from the CD image.
Rocks is an free Linux cluster distribution that enables end users to easily build computational clusters, grid endpoints and visualization tiled-display walls. 100's of researchers from around the world have used Rocks to deploy their own cluster.