Basic HTML version of Foils prepared 19 September 98

Foil 25 The Six Fundamental MPI routines

From MPI Message Passing Interface Computational Science for Simulations -- Fall Semester 1998. by Geoffrey C. Fox, Nancy McCracken
MPI_Init (argc, argv) -- initialize
MPI_Comm_rank (comm, rank) -- find process label (rank) in group
MPI_Comm_size(comm, size) -- find total number of processes
MPI_Send (sndbuf,count,datatype,dest,tag,comm) -- send a message
MPI_Recv (recvbuf,count,datatype,source,tag,comm,status) -- receive a message
MPI_Finalize( ) -- End Up

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