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.
GXP is a parallel shell for clusters, supercomputers, and distributed systems, also supporting parallel/distributed make.
sshfsmux is a FUSE-based file system that allows a node to mount multiple hosts via ssh on the same mount point.
paratrac is a FUSE-based file system profiling tool
mdoch is a work-in-progress to writing molecular dynamics simulations in Chapel programming language, which also helps evaluate Chapel itself.