Process 2 is active. QUADRATURE - Master process: A program using MPI, to compute PI. The number of processes is 4 Process 0 is active. QUADRATURE - Master process: Number of intervals being used is 100 Process 1 is active. Process 3 is active. QUADRATURE - Master process: Estimate for PI is 3.14160 Error is 0.833333E-05 Elapsed wall clock seconds = 0.062786 QUADRATURE - Master process: Normal end of execution.