11 May 2025 08:10:52 PM 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 6.3728e-05 2 1 6.569e-06 4 2 2.977e-06 8 4 2.884e-06 16 6 2.777e-06 32 11 2.906e-06 64 18 3.802e-06 128 31 6.637e-06 256 54 1.6809e-05 512 97 5.3022e-05 1024 172 0.000175924 2048 309 0.000596438 4096 564 0.00236222 8192 1028 0.00892614 16384 1900 0.0282556 32768 3512 0.0752768 65536 6542 0.28169 131072 12251 1.07135 262144 23000 4.04486 PRIME_MPI - Master process: Normal end of execution. 11 May 2025 08:10:58 PM