Hi Nurlan, This feature isn't implemented yet, but will be resolved together with the issue for multi-threading the Solver: https://issues.jboss.org/browse/JBRULES-681 I have a working design in my head and on paper here for the basic. Basically, a Move will be parallelized over CPU's and JVM's. The critical thing that made this hard is not breaking incremental score calculation (delta's), which would make it slower than single-threaded, not faster, but I 've found a way to do that. I 'll look into jgroups to do the JVM communication by default, but I 'll probably make that pluggable. Note: better optimizations algorithms usually beat adding more CPU's - but doing both is even better of course :) Op 13-03-12 05:20, Nurlan schreef: -- With kind regards, Geoffrey De Smet