P4 is a self-organizing, peer-to-peer overlay network similar to Gnutella and Freenet. It differs in that it provides an API for developing applications on top of the network and handles the networking and export functionality for unicast, multicast, user and plugin discovery, and strong encryption and authentication. This frees developers from worrying about networking and allows them to focus on building real functionality.
mmrun is a simple tool to distribute a list of computing jobs over a cluster of machines. It uses MPI to start jobs on the clients and monitor their progress (but does not require the clients to use MPI in any way). The status of all jobs can be monitored at any time by pointing a Web browser at the built-in Web server.
ClusterControl is a Web interface to simplify distributing and monitoring (bioinformatics) applications on Linux cluster systems. It is based on a modular concept that enables integration of command line oriented programs into the application framework of ClusterControl. The system enables integration of different applications accessed through one interface and executed on a distributed cluster system. It uses Apache, PHP, and OpenPBS or Sun Grid Engine.
ttmap passively analyzes values of TCP Timestamps in captured IP packets. After collecting enough data, it computes characteristic remote machine parameters. These values let it guess remote operating systems and identify unique machines behind a single IP address. For example, it can analyze remote IP load-balanced clusters.