Forcing multiple threads to use multiple CPUs when they are available

Question

I\'m writing a Java program which uses a lot of CPU because of the nature of what it does. However, lots of it can run in parallel, and I have made my program multi-threade

Answer 1

JVM performance tuning has been mentioned before in Why does this Java code not utilize all CPU cores?. Note that this only applies to the JVM, so your application must already be using threads (and more or less "correctly" at that):

http://ch.sun.com/sunnews/events/2009/apr/adworkshop/pdf/5-1-Java-Performance.pdf