MOSIX
- A kernel module to support clustered computing by migrating processes across a cluster. Source code, papers, mailing list, and bug archive.
- http://www.cs.huji.ac.il/labs/mosix/

Queue
- Load-balancing/distributed batch processing utility and local rsh replacement.
- http://www.gnuqueue.org/

Pooch
- Graphical software for distributing jobs to a network of Macintoshes.
- http://daugerresearch.com/pooch/

The ANTS Load Balancing System
- Source code and documentation.
- http://unthought.net/antsd/

ClusterIt
- Suite of tools for managing large clusters of machines including a variety of administration programs such as parallel rcp, parallel rsh, job scheduling, and simple barrier sync.
- http://www.garbled.net/clusterit.html

ARCH
- A C++-based object-oriented library of tools for parallel programming using MPI. Source code and documentation.
- ftp://ftp.tc.cornell.edu/pub/ARCH/ARCH.v.2/

APPS
- Asynchronous and Fault Tolerant Parallel Pattern Search. For PVM and MPI programs. Source code and documentation.
- http://csmr.ca.sandia.gov/projects/apps.html

The Globus Toolkit
- The Globus Toolkit provides software tools that make it easier to build computational grids and grid-based applications.
- http://www.globus.org/toolkit/

Scientific Computing Associates
- Sells virtual shared memory computing tools and clustering software.
- http://www.lindaspaces.com/

KAP/Pro Toolset
- OpenMP implementation and development tools. Product description and ordering information.
- http://www.kai.com/parallel

Etnus, Inc.
- Debugger and performance analysis tools for parallel programs. Product information and manuals.
- http://www.etnus.com/

CODE Visual Parallel Programming System
- CODE is a visual parallel programming system that composes sequential programs into parallel programs for shared-memory multiprocessors and workstations running MPI or PVM.
- http://www.cs.utexas.edu/users/code/