OVIS
OVIS, a software tool developed by Sandia National Laboratories that provides real-time monitoring of computational computer clusters, is now available as open source. It offers a statistical approach to computational platform monitoring and analysis, observing the overall statistical properties and environmental effects of a cluster, characterizing individual device behaviors and comparing them to a large number of statistically similar devices. Also, it addresses the issue of aberrant node detection, and allows the system builder to visualize the spatial distribution of a particular characteristic over the entire system.