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
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

© on Tue Oct 7 1997