al_init.c File Reference

ArrayLib Initialization routines. More...

#include "al_hidden.h"

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Functions
int	AL_Init (int *argc, char ***argv)
int	AL_Initialized ()

Variables
static int	AL_initialized = AL_FALSE

Detailed Description

ArrayLib Initialization routines.

ArrayLib Initialization routines

Authors

A. Malagoli (University of Chicago)

Date

Jul 17, 1999

Definition in file al_init.c.

Function Documentation

int AL_Init	(	int *	argc,
		char ***	argv
	)

Initialize the AL Tool. It contains a call to MPI_Init().

Parameters

[in]	argc	integer pointer to number of arguments
[in]	argv	pointer to argv list

Definition at line 18 of file al_init.c.

{
  int myrank, nproc, errcode;
  int flag;

  errcode = MPI_Initialized(&flag);

  if( !flag ) 
    errcode = MPI_Init(argc, argv);

  MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
  MPI_Comm_size(MPI_COMM_WORLD, &nproc);

#ifdef DEBUG
  printf("AL_Init: Called MPI_init from C: %d\n",errcode);
#endif

  /* Initialize the SZ pointers stack */
  AL_Init_stack_();

  /* Synchronize just in case */
  MPI_Barrier(MPI_COMM_WORLD);

  AL_initialized = AL_TRUE;

  return errcode;
}

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int AL_Initialized

(

)

Test whether or not AL was initialized

Returns

This function returns AL_TRUE if AL is initialized, AL_FALSE otherwise.

Definition at line 53 of file al_init.c.

{
  return AL_initialized;
}

Variable Documentation

int AL_initialized = AL_FALSE

static

Definition at line 15 of file al_init.c.