Basic HTML version of Foils prepared 10 Oct 1995

Foil 11 MPI_Init -- Environment Management

From Fox Presentation Fall 1995 CPS615 Basic Simulation Track for Computational Science -- Fall Semester 95. by Geoffrey C. Fox
1 This MUST be called to set up MPI before any other MPI routines may be called
2 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
3 For Fortran: call MPI_INIT(mpierr)
  • nonzero (more pedantically values not equal to MPI_SUCCESS) values of mpierr represent errors
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© on Tue Oct 7 1997