Hi, Anyone with any experience running large simulations using MASON on different OS/JVM combinations? My gut instinct tells me an X-less Linux box running a recent Sun JVM would be my best bet for speed, but I'm an OS agnostic. To date the largest ABM I have helped build runs in Repast 3 (not my choice, I might add ;) and it's only possible to test it on Windows. There are Java benchmarks out there I know, but none that I can see based around (GUI-less) MASON ABMs. Regards, Dr Matthew Berryman Defence and Systems Institute Bldg. W (MLK-05) University of South Australia Mawson Lakes SA 5095 t +61 8 8302 5882 f +61 8 8302 5344 m +61 413 458 594 CRICOS Provider Number: 00121B