Scripted HTML version of Foils prepared 11 November 1996
Foil 11 MPI_Init -- Environment Management
From CPS615-Initial Lecture on MPI ending with discussion of basic MPI_SEND Delivered Lectures of CPS615 Basic Simulation Track for Computational Science -- 31 October 96. byGeoffrey C. Fox * Secs 72
This MUST be called to set up MPI before any other MPI routines may be called
For C: int MPI_Init(int *argc, char **argv[])
argc and argv[] are conventional C main routine arguments
As usual MPI_Init returns an error handle
For Fortran: call MPI_INIT(mpierr)
nonzero (more pedantically values not equal to MPI_SUCCESS) values of mpierr represent errors
Secs 72
