MonPaaS is a monitoring service for OpenStack based on Nagios
XML Data Stream Broker/Replicator
Distributed Computing with JavaScript
shared memory allocator
Networking framework for Java applications
C.H.A.O.S. is a Linux distro made for clusters.
Cross-platform grid computing solution
TuCSoN tuple-based coordination middleware
TaskManager manages calculation jobs in a computer cluster environment
Batch system monitoring and archiving