9 May 2025   9:26:48.192 PM
 
prime_mpi():
  FORTRAN90/MPI version
 
  An MPI example program to count the number of primes.
  The number of processes is        2
 
         N        Pi          Time
 
         1         0  0.915360E-04
         2         1  0.910000E-05
         4         2  0.379900E-05
         8         4  0.328000E-05
        16         6  0.425500E-05
        32        11  0.649300E-05
        64        18  0.107480E-04
       128        31  0.231800E-04
       256        54  0.681310E-04
       512        97  0.228441E-03
      1024       172  0.794410E-03
      2048       309  0.286478E-02
      4096       564  0.101166E-01
      8192      1028  0.195072E-01
     16384      1900  0.373070E-01
     32768      3512  0.129779    
     65536      6542  0.484682    
    131072     12251   1.82699    
    262144     23000   6.90528    
 
prime_mpi():
  Normal end of execution.
 
 9 May 2025   9:26:57.654 PM
 9 May 2025   9:26:57.964 PM
 
prime_mpi():
  FORTRAN90/MPI version
 
  An MPI example program to count the number of primes.
  The number of processes is        4
 
         N        Pi          Time
 
         1         0  0.101829E-03
         2         1  0.689400E-05
         4         2  0.357300E-05
         8         4  0.445600E-05
        16         6  0.440500E-05
        32        11  0.502600E-05
        64        18  0.791900E-05
       128        31  0.145440E-04
       256        54  0.361940E-04
       512        97  0.129675E-03
      1024       172  0.419328E-03
      2048       309  0.143056E-02
      4096       564  0.523961E-02
      8192      1028  0.180480E-01
     16384      1900  0.222069E-01
     32768      3512  0.666128E-01
     65536      6542  0.248810    
    131072     12251  0.939767    
    262144     23000   3.54249    
 
prime_mpi():
  Normal end of execution.
 
 9 May 2025   9:27:02.853 PM