24 October 2011 2:37:11.337 PM PRIME_MPI FORTRAN77/MPI version An MPI example program to count the number of primes. The number of processes is 8 N Pi Time 1 0 0.197940E-01 2 1 0.296550E-01 4 2 0.810814E-02 8 4 0.177479E-02 16 6 0.140667E-04 32 11 0.200272E-04 64 18 0.181198E-04 128 31 0.998974E-04 256 54 0.851154E-04 512 97 0.308990E-03 1024 172 0.980139E-03 2048 309 0.366783E-02 4096 564 0.133419E-01 8192 1028 0.276399E-01 16384 1900 0.598061E-01 32768 3512 0.227086 65536 6542 0.865634 131072 12251 3.34440 PRIME_MPI - Master process: Normal end of execution. 24 October 2011 2:37:15.947 PM