/*  File produced by Kranc */

#define KRANC_C

#include <assert.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "cctk.h"
#include "cctk_Arguments.h"
#include "cctk_Parameters.h"
#include "GenericFD.h"
#include "Differencing.h"
#include "cctk_Loop.h"
#include "loopcontrol.h"
#include "OpenCLRunTime.h"
#include "vectors.h"

/* Define macros used in calculations */
#define INITVALUE (42)
#define ScalarINV(x) ((CCTK_REAL)1.0 / (x))
#define ScalarSQR(x) ((x) * (x))
#define ScalarCUB(x) ((x) * ScalarSQR(x))
#define ScalarQAD(x) (ScalarSQR(ScalarSQR(x)))
#define INV(x) (kdiv(ToReal(1.0),x))
#define SQR(x) (kmul(x,x))
#define CUB(x) (kmul(x,SQR(x)))
#define QAD(x) (SQR(SQR(x)))

static void WT_CL_Gaussian_Body(cGH const * restrict const cctkGH, int const dir, int const face, CCTK_REAL const normal[3], CCTK_REAL const tangentA[3], CCTK_REAL const tangentB[3], int const imin[3], int const imax[3], int const n_subblock_gfs, CCTK_REAL * restrict const subblock_gfs[])
{
  DECLARE_CCTK_ARGUMENTS;
  DECLARE_CCTK_PARAMETERS;
  
  char const *const source =
  "\n"
  "/* Include user-supplied include files */\n"
  "\n"
  "/* Initialise finite differencing variables */\n"
  "ptrdiff_t const di = 1;\n"
  "ptrdiff_t const dj = CCTK_GFINDEX3D(cctkGH,0,1,0) - CCTK_GFINDEX3D(cctkGH,0,0,0);\n"
  "ptrdiff_t const dk = CCTK_GFINDEX3D(cctkGH,0,0,1) - CCTK_GFINDEX3D(cctkGH,0,0,0);\n"
  "ptrdiff_t const cdi = sizeof(CCTK_REAL) * di;\n"
  "ptrdiff_t const cdj = sizeof(CCTK_REAL) * dj;\n"
  "ptrdiff_t const cdk = sizeof(CCTK_REAL) * dk;\n"
  "CCTK_REAL_VEC const dx = ToReal(CCTK_DELTA_SPACE(0));\n"
  "CCTK_REAL_VEC const dy = ToReal(CCTK_DELTA_SPACE(1));\n"
  "CCTK_REAL_VEC const dz = ToReal(CCTK_DELTA_SPACE(2));\n"
  "CCTK_REAL_VEC const dt = ToReal(CCTK_DELTA_TIME);\n"
  "CCTK_REAL_VEC const t = ToReal(cctk_time);\n"
  "CCTK_REAL_VEC const dxi = INV(dx);\n"
  "CCTK_REAL_VEC const dyi = INV(dy);\n"
  "CCTK_REAL_VEC const dzi = INV(dz);\n"
  "CCTK_REAL_VEC const khalf = ToReal(0.5);\n"
  "CCTK_REAL_VEC const kthird = ToReal(1.0/3.0);\n"
  "CCTK_REAL_VEC const ktwothird = ToReal(2.0/3.0);\n"
  "CCTK_REAL_VEC const kfourthird = ToReal(4.0/3.0);\n"
  "CCTK_REAL_VEC const keightthird = ToReal(8.0/3.0);\n"
  "CCTK_REAL_VEC const hdxi = kmul(ToReal(0.5), dxi);\n"
  "CCTK_REAL_VEC const hdyi = kmul(ToReal(0.5), dyi);\n"
  "CCTK_REAL_VEC const hdzi = kmul(ToReal(0.5), dzi);\n"
  "\n"
  "/* Initialize predefined quantities */\n"
  "CCTK_REAL_VEC const p1o12dx = kdiv(ToReal(0.0833333333333333333333333333333),dx);\n"
  "CCTK_REAL_VEC const p1o12dy = kdiv(ToReal(0.0833333333333333333333333333333),dy);\n"
  "CCTK_REAL_VEC const p1o12dz = kdiv(ToReal(0.0833333333333333333333333333333),dz);\n"
  "CCTK_REAL_VEC const p1o144dxdy = kdiv(ToReal(0.00694444444444444444444444444444),kmul(dy,dx));\n"
  "CCTK_REAL_VEC const p1o144dxdz = kdiv(ToReal(0.00694444444444444444444444444444),kmul(dz,dx));\n"
  "CCTK_REAL_VEC const p1o144dydz = kdiv(ToReal(0.00694444444444444444444444444444),kmul(dz,dy));\n"
  "CCTK_REAL_VEC const pm1o12dx2 = kdiv(ToReal(-0.0833333333333333333333333333333),kmul(dx,dx));\n"
  "CCTK_REAL_VEC const pm1o12dy2 = kdiv(ToReal(-0.0833333333333333333333333333333),kmul(dy,dy));\n"
  "CCTK_REAL_VEC const pm1o12dz2 = kdiv(ToReal(-0.0833333333333333333333333333333),kmul(dz,dz));\n"
  "\n"
  "/* Assign local copies of arrays functions */\n"
  "\n"
  "\n"
  "\n"
  "/* Calculate temporaries and arrays functions */\n"
  "\n"
  "/* Copy local copies back to grid functions */\n"
  "\n"
  "/* Loop over the grid points */\n"
  "#pragma omp parallel\n"
  "LC_LOOP3VEC(WT_CL_Gaussian,\n"
  "  i,j,k, imin[0],imin[1],imin[2], imax[0],imax[1],imax[2],\n"
  "  cctk_ash[0],cctk_ash[1],cctk_ash[2],\n"
  "  CCTK_REAL_VEC_SIZE)\n"
  "{\n"
  "  ptrdiff_t const index = di*i + dj*j + dk*k;\n"
  "  \n"
  "  /* Assign local copies of grid functions */\n"
  "  \n"
  "  CCTK_REAL_VEC rL = vec_load(r[index]);\n"
  "  \n"
  "  \n"
  "  /* Include user supplied include files */\n"
  "  \n"
  "  /* Precompute derivatives */\n"
  "  \n"
  "  /* Calculate temporaries and grid functions */\n"
  "  CCTK_REAL_VEC uL = \n"
  "    kmul(kexp(kdiv(kmul(kmul(rL,rL),ToReal(-0.5)),ToReal(ScalarSQR(width)))),ToReal(amplitude));\n"
  "  \n"
  "  CCTK_REAL_VEC rhoL = ToReal(0);\n"
  "  \n"
  "  /* Copy local copies back to grid functions */\n"
  "  vec_store_partial_prepare(i,lc_imin,lc_imax);\n"
  "  vec_store_nta_partial(rho[index],rhoL);\n"
  "  vec_store_nta_partial(u[index],uL);\n"
  "}\n"
  "LC_ENDLOOP3VEC(WT_CL_Gaussian);\n"
  ""
  ;
  
  char const *const groups[] = {
    "grid::coordinates",
    "ML_WaveToy_CL::WT_rho",
    "ML_WaveToy_CL::WT_u",
    NULL};
  
  static struct OpenCLKernel *kernel = NULL;
  char const *const sources[] = {differencing, source, NULL};
  OpenCLRunTime_CallKernel(cctkGH, CCTK_THORNSTRING, "WT_CL_Gaussian",
                           sources, groups, NULL, NULL, NULL, -1,
                           imin, imax, &kernel);
  
}

extern "C" void WT_CL_Gaussian(CCTK_ARGUMENTS)
{
  DECLARE_CCTK_ARGUMENTS;
  DECLARE_CCTK_PARAMETERS;
  
  
  if (verbose > 1)
  {
    CCTK_VInfo(CCTK_THORNSTRING,"Entering WT_CL_Gaussian_Body");
  }
  
  if (cctk_iteration % WT_CL_Gaussian_calc_every != WT_CL_Gaussian_calc_offset)
  {
    return;
  }
  
  const char *const groups[] = {
    "grid::coordinates",
    "ML_WaveToy_CL::WT_rho",
    "ML_WaveToy_CL::WT_u"};
  GenericFD_AssertGroupStorage(cctkGH, "WT_CL_Gaussian", 3, groups);
  
  
  GenericFD_LoopOverEverything(cctkGH, WT_CL_Gaussian_Body);
  
  if (verbose > 1)
  {
    CCTK_VInfo(CCTK_THORNSTRING,"Leaving WT_CL_Gaussian_Body");
  }
}