# Interface definition for thorn Diffusion3D
# $Header$

implements: evolve_data

public:

CCTK_REAL field type=GF dim=3 timelevels=2
{
   u
}

private:

CCTK_REAL stencil type=GF timelevels=1
{
   cc, ce, cw, cn, cs, ct, cb, rhs
} "Stencil coeffients"

CCTK_REAL cgworkspace type=GF timelevels=1
{
   p, Ap, w, As
} "Grid functions needed by CG solver"