openMosix

openMosix Official

openMosix is a free cluster management system that provides single-system image (SSI) capabilities, e.g. automatic work distribution among nodes. It allows program processes (not threads) to migrate to machines in the node's network that would be able to run that process faster (process migration). It is particularly useful for running parallel and intensive input/output (I/O) applications. It is released as a Linux kernel patch, but is also available on specialized LiveCDs.

openMosix was originally forked from MOSIX by Moshe Bar on February 10, 2002 when MOSIX became proprietary software.

openMosix is considered stable on Linux kernel 2.4.x for the x86 architecture, while porting to Linux 2.6 kernel is still under development. Support for the 64-bit AMD64 architecture only starts with the 2.6 version.

On July 15, 2007, Bar announced that the openMOSIX project will reach its end of life on March 1, 2008, due to the decreasing need for SSI clustering as low-cost multi-core processors increase in availability.

Computer Cluster

top500.org

beowulf.org

clusterknoppix

bccd.cs.uni.edu

ParallelKnoppix

openmosix

OpenSSI

chaos

A computer cluster is a group of loosely coupled computers that work together closely so that in many respects they can be viewed as though they are a single computer. The components of a cluster are commonly, but not always, connected to each other through fast local area networks. Clusters are usually deployed to improve performance and/or availability over that provided by a single computer, while typically being much more cost-effective than single computers of comparable speed or availability.



The TOP500 organization's semiannual list of the 500 fastest computers usually includes many clusters. TOP500 is a collaboration between the University of Mannheim, the University of Tennessee, and the National Energy Research Scientific Computing Center at Lawrence Berkeley National Laboratory. As of June 2007, the top supercomputer is the Department of Energy's IBM BlueGene/L system with performance of 280.6 TFlops.

Top500:

373 Clusters (74,60 %)

107 MPPs (21,40%)

20 Constellations (4,00%)