KeplerWeka 2.0 Build 20101008
Free plug-in for Kepler
Even though KeplerWeka provides a graphical user interface, normally used for modeling, workflows can also be executed from command-line.
KeplerWeka has the ability to run flows on grids and its inherent support for multi-core architectures.
Since the aforementioned project also needed some basic support for WEKA, it started out on creating WEKA actors (an actor is an atomic component in a Kepler workflow).
KeplerWeka is cross-platform and can be used on Linux, Mac OS X and Windows.