06 October 2025 11:30:12 AM

PRIME_MPI
  C++/MPI version

  An MPI example program to count the number of primes.
  The number of processes is 4

         N        Pi          Time

         1         0     0.000128417
         2         1       9.292e-06
         4         2       4.908e-06
         8         4       6.124e-06
        16         6       5.613e-06
        32        11        6.77e-06
        64        18       7.538e-06
       128        31      1.5302e-05
       256        54      4.5875e-05
       512        97     0.000131465
      1024       172     0.000445912
      2048       309      0.00131079
      4096       564      0.00323863
      8192      1028      0.00895331
     16384      1900       0.0241903
     32768      3512       0.0793415
     65536      6542        0.361191
    131072     12251         1.76143
    262144     23000         4.18866

PRIME_MPI - Master process:
  Normal end of execution.

06 October 2025 11:30:18 AM