Kitten Lightweight Kernel
Kitten is a current-generation lightweight kernel (LWK) compute node operating system designed for large-scale parallel computing systems. Kitten is the latest in a long line of successful LWKs, including SUNMOS, Puma, Cougar, and Catamount. Kitten distinguishes itself from these prior LWKs by providing a Linux-compatible user environment, a more modern and extendable open-source codebase, and a virtual machine monitor capability via Palacios that allows full-featured guest operating systems to be loaded on-demand.