MPI in a Nutshell

• Initialization and termination

  • MPI_Init, MPI_Finalize

• Node information

  • MPI_Comm_Rank, MPI_Comm_Size

• Fan Out and Fan In

  • MPI_Bcast, MPI_Reduce

• Blocking messages

  • MPI_Send, MPI_Recv

• Non-blocking messages

  • MPI_Isend, MPI_Irecv, MPI_Wait, MPI_Test

• Lots more

Notes: