GEL is a general-purpose parallel scripting language for describing workflows. It features explicit parallel constructs which allow for efficient parallel execution on clusters, Grids and SMP machines. There is GEL support for Condor Grids, and SGE, PBS and LSF-based clusters.
Wildfire/GEL provides an integrated solution for building and executing workflows. Wildfire runs as an application on desktop and laptop platforms, and the GEL workflows can either run on the same machine or remotely on the Grid or on a cluster."