Catamount (operating system)

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The Cray XT3 supercomputer which uses Catamount on its compute nodes

Catamount is an operating system for supercomputers.[1]

Catamount is a lightweight kernel that provides basic functionality and aims for efficiency. The roots of Catamount go back to 1991 when SUNMOS was developed by Sandia National Laboratories and the University of New Mexico as a lightweight operating system. The Cray XT3 uses Catamount on compute nodes and Linux on server nodes.[1]

See also[edit]


  1. ^ a b An Evaluation of the Oak Ridge National Laboratory Cray XT3 by Sadaf R. Alam etal International Journal of High Performance Computing Applications February 2008 vol. 22 no. 1 52-80