I just read this blog by the tech team at NY Times. These guys are good. They used Amazon's EC2 and Hadoop to run a massive grid job - ..blogs.nytimes.com/..hadoop. Of course it's all Java. There's more of this kind of stuff in my previous blog: ..got-cache?
And, a nice summary of the state of the art by Cliff Click - the original lead of HotSpot (correct?): ..blogs.azulsystems.com/cliff..
I loved this line from his blog. Haha:
More auto-parallelizing hardware tricks like the Run-Ahead Scout .. .. .. is more like a blind idiot without warmed-up caches & branch-predictors