P1: 'Hello, world!' P2: 'Hello, world!' P3: 'Hello, world!' 11 May 2025 08:00:47 PM P0: HELLO_MPI - Master process: P0: C++/MPI version P0: An MPI example program. P0: The number of processes is 4 P0: 'Hello, world!' P0: Elapsed wall clock time = 1.664e-06 seconds. P0: HELLO_MPI: P0: Normal end of execution. 11 May 2025 08:00:47 PM