#undef KRANC_DIFF_FUNCTIONS #define KRANC_C #include "Differencing.h" #include "GenericFD.h" #undef KRANC_GFOFFSET3D #define KRANC_GFOFFSET3D(u,i,j,k) I3D(u,i,j,k) /* Define macros used in calculations */ #define INITVALUE (42) #define INV(x) ((CCTK_REAL)1.0 / (x)) #define SQR(x) ((x) * (x)) #define CUB(x) ((x) * SQR(x)) #define QAD(x) (SQR(SQR(x))) CAKERNEL_initial_gaussian_Begin /* Include user-supplied include files */ /* Initialise finite differencing variables */ CCTK_REAL /*const*/ dx CCTK_ATTRIBUTE_UNUSED = params.cagh_dx; CCTK_REAL /*const*/ dy CCTK_ATTRIBUTE_UNUSED = params.cagh_dy; CCTK_REAL /*const*/ dz CCTK_ATTRIBUTE_UNUSED = params.cagh_dz; CCTK_REAL /*const*/ dt CCTK_ATTRIBUTE_UNUSED = params.cagh_dt; CCTK_REAL /*const*/ t CCTK_ATTRIBUTE_UNUSED = params.cagh_time; CCTK_REAL /*const*/ dxi CCTK_ATTRIBUTE_UNUSED = INV(dx); CCTK_REAL /*const*/ dyi CCTK_ATTRIBUTE_UNUSED = INV(dy); CCTK_REAL /*const*/ dzi CCTK_ATTRIBUTE_UNUSED = INV(dz); CCTK_REAL /*const*/ khalf CCTK_ATTRIBUTE_UNUSED = 0.5; CCTK_REAL /*const*/ kthird CCTK_ATTRIBUTE_UNUSED = 1/3.0; CCTK_REAL /*const*/ ktwothird CCTK_ATTRIBUTE_UNUSED = 2.0/3.0; CCTK_REAL /*const*/ kfourthird CCTK_ATTRIBUTE_UNUSED = 4.0/3.0; CCTK_REAL /*const*/ keightthird CCTK_ATTRIBUTE_UNUSED = 8.0/3.0; CCTK_REAL /*const*/ hdxi CCTK_ATTRIBUTE_UNUSED = 0.5 * dxi; CCTK_REAL /*const*/ hdyi CCTK_ATTRIBUTE_UNUSED = 0.5 * dyi; CCTK_REAL /*const*/ hdzi CCTK_ATTRIBUTE_UNUSED = 0.5 * dzi; /* Initialize predefined quantities */ CCTK_REAL /*const*/ p1odx CCTK_ATTRIBUTE_UNUSED = INV(dx); /* Assign local copies of arrays functions */ /* Calculate temporaries and arrays functions */ /* Copy local copies back to grid functions */ CAKERNEL_initial_gaussian_Computations_Begin /* Assign local copies of grid functions */ CCTK_REAL xL CCTK_ATTRIBUTE_UNUSED = I3D(x,0,0,0); /* Include user supplied include files */ /* Precompute derivatives */ /* Calculate temporaries and grid functions */ CCTK_REAL CCTK_ATTRIBUTE_UNUSED phiL = exp(-100.*SQR(xL + t)); /* Copy local copies back to grid functions */ I3D(phi,0,0,0) = phiL; CAKERNEL_initial_gaussian_Computations_End CAKERNEL_initial_gaussian_End