The master is ready Master done with stage 1 Master done with stage 2 factoring 100 randomly generated number(s) Factoring 100 numbers on 4 CPUs took 4.532498 Master done with stage 3 2: Total time in stage 2: 1.288270 2: Compute time : 0.307636 2: MPI_Recv time : 0.895390 2: MPI_Send time : 0.083106 3: Total time in stage 2: 0.405782 3: Compute time : 0.267836 3: MPI_Recv time : 0.035270 3: MPI_Send time : 0.100120 4: Total time in stage 2: 0.406076 4: Compute time : 0.208190 4: MPI_Recv time : 0.061556 4: MPI_Send time : 0.133818 1: Total time in stage 2: 2.042504 1: Compute time : 0.485924 1: MPI_Recv time : 1.420009 1: MPI_Send time : 0.132673