petsc-3.13.6 2020-09-29

DMStagGetCorners

return global element indices of the local region (excluding ghost points)

Synopsis

PetscErrorCode DMStagGetCorners(DM dm,PetscInt *x,PetscInt *y,PetscInt *z,PetscInt *m,PetscInt *n,PetscInt *p,PetscInt *nExtrax,PetscInt *nExtray,PetscInt *nExtraz)

Not Collective

Input Parameter

dm -the DMStag object

Output Parameters

	x,y,z	- starting element indices in each direction
	m,n,p	- element widths in each direction
	nExtrax,nExtray,nExtraz	- number of extra partial elements in each direction.

Notes

Arguments corresponding to higher dimensions are ignored for 1D and 2D grids. These arguments may be set to NULL in this case.

The number of extra partial elements is either 1 or 0. The value is 1 on right, top, and front non-periodic domain ("physical") boundaries, in the x, y, and z directions respectively, and otherwise 0.

Level

beginner

Location

src/dm/impls/stag/stagutils.c
Index of all DMSTAG routines
Table of Contents for all manual pages
Index of all manual pages