Running models in parallel as apposed sequentially.

I'm currently developing a large seagrass growth model for Tampa Bat Fl.  I have created a unit model and have coupled it to a hexagon grid. For the detail that I need I use 1000000 hexagons which will make the model run for ever.  However i am considering dividing up the Bay into 10 to 20 more locallized hexagon  grids that I could run in paralell using the a single unit model.  Is there any way to do this within SIMILE or am I going to have to be more creative.