As a research group working on system softawre, we have a great deal of interest in publishing open source software, both as a research output and for making everybody's research more efficient. We will be adding more in future.
MassiveThreads (old) is a high performance multithreading library supporting millions of threads with Pthreads-compatible API.
GXP (old) is a parallel shell for clusters, supercomputers, and distributed systems, also supporting parallel/distributed make.
sshfsmux]([[http://code.google.com/p/sshfsmux/) is a FUSE-based file system that allows a node to mount multiple hosts via ssh on the same mount point.
paratrac(old) is a FUSE-based file system profiling tool
textshot(old) is a simple wrapper around jumpshot-4 (slog2) performance visualizer, supporting super simple text-based log format.
cpulock(old) is a utility to run multiple processes (multithreaded or not), assigning a set of CPUs exclusively to each process.
smart-gnuplotter(old) is a python library to draw tons of gnuplot graphs easily; useful to automate producing tex papers/slides containing lots of graphs.