System: 2 x dual core (i.e. 4 cores in total), Opteron 2212, 64 bit mode ./simple.opt -size 1000 1000 1000: 38.61s ./simple.opt -size 2000 2000 2000: 359.765s ./simple.opt -size 3000 3000 3000: 1483.759 Cluster: Size Workers Time 1000 1000 1000 1 45.174 2000 2000 2000 1 382.874 3000 3000 3000 1 1847.225 1000 1000 1000 2 24.407 2000 2000 2000 2 206.426 3000 3000 3000 2 849.089 1000 1000 1000 4 20.842 2000 2000 2000 4 144.718 3000 3000 3000 4 576.02