Separate HTML for Basic Foil 10 The Six Fundamental MPI routines

Basic HTML version of Foils prepared 10 Oct 1995

Foil 10 The Six Fundamental MPI routines

From Fox Presentation Fall 1995 CPS615 Basic Simulation Track for Computational Science -- Fall Semester 95. by Geoffrey C. Fox

call MPI_INIT(mpierr) -- initialize

call MPI_COMM_RANK (comm,rank,mpierr) -- find processor label (rank) in group

call MPI_COMM_SIZE(comm,size,mpierr) -- find total number of processors

call MPI_SEND (sndbuf,count,datatype,dest,tag,comm,mpierr) -- send a message

call MPI_RECV (recvbuf,count,datatype,source,tag,comm,status,mpierr) -- receive a message

call MPI_FINALIZE(mpierr) -- End Up