basic.h File Reference

Some basic definitions and macros. More...

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Macros
#define	_MAX_STRING_SIZE_   500
#define	IERR   ierr=
#define	_DECLARE_IERR_   int ierr = 0;
#define	CHECKERR(ierr)   { if (ierr) return(ierr); }
#define	_MACHINE_ZERO_   1.0e-14
#define	_GetCoordinate_(dir, i, dim, ghosts, x, coord)
#define	_MIN_GRID_PTS_PER_PROC_   4

Detailed Description

Some basic definitions and macros.

Author

Debojyoti Ghosh

Definition in file basic.h.

Macro Definition Documentation

_MAX_STRING_SIZE_

#define _MAX_STRING_SIZE_   500

Maximum size of character strings

Definition at line 14 of file basic.h.

IERR

#define IERR   ierr=

Definition at line 16 of file basic.h.

_DECLARE_IERR_

#define _DECLARE_IERR_   int ierr = 0;

Definition at line 17 of file basic.h.

CHECKERR

#define CHECKERR

(

ierr

)

{ if (ierr) return(ierr); }

Definition at line 18 of file basic.h.

_MACHINE_ZERO_

#define _MACHINE_ZERO_   1.0e-14

Numbers smaller than this will be treated as zero

Definition at line 26 of file basic.h.

_GetCoordinate_

#define _GetCoordinate_	(		dir,
			i,
			dim,
			ghosts,
			x,
			coord
	)

Value:

{ \
    int arraycounter,offset = 0; \
    for (arraycounter = 0; arraycounter < dir; arraycounter++) offset += (dim[arraycounter]+2*ghosts); \
    coord = (x[offset+ghosts+i]); \
  }

Macro to get the spatial coordinate coord along the dir dimension of a grid point whose index in that dimension is i, in a grid of size dim with ghosts ghost points in each dimension. The array containing the spatial coordinates of the entire grid is x.

Definition at line 31 of file basic.h.

_MIN_GRID_PTS_PER_PROC_

#define _MIN_GRID_PTS_PER_PROC_   4

Minimum number of grid points per dimension per MPI rank

Definition at line 39 of file basic.h.