CHAOS (Clustered High Availability Operating System) is a Linux distribution produced within the Livermore Computing center at the
Lawrence Livermore National Laboratory. It augments the standard
Red Hat Enterprise Linux distribution with kernel modifications and user-space tools to support HPC (
high-performance computing)
clustering. This means that it helps to bring multiple computers together to run as one; numerously increasing the power of an everyday computer. It is used on Linux clusters within the Livermore Computing center.