Catamount Software Architecture with Dual Core Extensions
Suzanne M. Kelly, Ron Brightwell, John Van Dyke · 2005
Catamount is the light weight kernel operating system running on the compute nodes of Cray XT3 systems. It is designed to be a low overhead operating system for a parallel computing environment. Functionality is limited to the minimum set needed to run a scientific computation. The design choices and implementations will be presented. This paper is a reprise of the CUG 2005 paper, but includes a discussion of how dual-core support was added to the software in the fall/winter of 2005.