MUSCLE

MUSCLE 2 – The Multiscale Coupling Library and Environment is a portable framework to do multiscale modeling and simulation on distributed computing resources. The generic coupling mechanism of MUSCLE is suitable for many types of multiscale applications, notably for multiscale models as defined by the MAPPER project or complex automata as defined in the COAST project.
Find MUSCLE at: http://apps.man.poznan.pl/trac/muscle