/*  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"

/* 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)))

static void initial_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;
  
  
  /* Include user-supplied include files */
  
  /* Initialise finite differencing variables */
  ptrdiff_t /*const*/ di CCTK_ATTRIBUTE_UNUSED  = 1;
  ptrdiff_t /*const*/ dj CCTK_ATTRIBUTE_UNUSED  = CCTK_GFINDEX3D(cctkGH,0,1,0) - CCTK_GFINDEX3D(cctkGH,0,0,0);
  ptrdiff_t /*const*/ dk CCTK_ATTRIBUTE_UNUSED  = CCTK_GFINDEX3D(cctkGH,0,0,1) - CCTK_GFINDEX3D(cctkGH,0,0,0);
  ptrdiff_t /*const*/ cdi CCTK_ATTRIBUTE_UNUSED  = sizeof(CCTK_REAL) * di;
  ptrdiff_t /*const*/ cdj CCTK_ATTRIBUTE_UNUSED  = sizeof(CCTK_REAL) * dj;
  ptrdiff_t /*const*/ cdk CCTK_ATTRIBUTE_UNUSED  = sizeof(CCTK_REAL) * dk;
  CCTK_REAL /*const*/ dx CCTK_ATTRIBUTE_UNUSED  = ToReal(CCTK_DELTA_SPACE(0));
  CCTK_REAL /*const*/ dy CCTK_ATTRIBUTE_UNUSED  = ToReal(CCTK_DELTA_SPACE(1));
  CCTK_REAL /*const*/ dz CCTK_ATTRIBUTE_UNUSED  = ToReal(CCTK_DELTA_SPACE(2));
  CCTK_REAL /*const*/ dt CCTK_ATTRIBUTE_UNUSED  = ToReal(CCTK_DELTA_TIME);
  CCTK_REAL /*const*/ t CCTK_ATTRIBUTE_UNUSED  = ToReal(cctk_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*/ p1o12dx CCTK_ATTRIBUTE_UNUSED  = 0.0833333333333333333333333333333*INV(dx);
  CCTK_REAL /*const*/ p1o12dy CCTK_ATTRIBUTE_UNUSED  = 0.0833333333333333333333333333333*INV(dy);
  CCTK_REAL /*const*/ p1o12dz CCTK_ATTRIBUTE_UNUSED  = 0.0833333333333333333333333333333*INV(dz);
  CCTK_REAL /*const*/ p1o144dxdy CCTK_ATTRIBUTE_UNUSED  = 0.00694444444444444444444444444444*INV(dx*dy);
  CCTK_REAL /*const*/ p1o144dxdz CCTK_ATTRIBUTE_UNUSED  = 0.00694444444444444444444444444444*INV(dx*dz);
  CCTK_REAL /*const*/ p1o144dydz CCTK_ATTRIBUTE_UNUSED  = 0.00694444444444444444444444444444*INV(dy*dz);
  CCTK_REAL /*const*/ p1o2dx CCTK_ATTRIBUTE_UNUSED  = 0.5*INV(dx);
  CCTK_REAL /*const*/ p1o2dy CCTK_ATTRIBUTE_UNUSED  = 0.5*INV(dy);
  CCTK_REAL /*const*/ p1o2dz CCTK_ATTRIBUTE_UNUSED  = 0.5*INV(dz);
  CCTK_REAL /*const*/ p1o4dxdy CCTK_ATTRIBUTE_UNUSED  = 0.25*INV(dx*dy);
  CCTK_REAL /*const*/ p1o4dxdz CCTK_ATTRIBUTE_UNUSED  = 0.25*INV(dx*dz);
  CCTK_REAL /*const*/ p1o4dydz CCTK_ATTRIBUTE_UNUSED  = 0.25*INV(dy*dz);
  CCTK_REAL /*const*/ p1odx2 CCTK_ATTRIBUTE_UNUSED  = INV(SQR(dx));
  CCTK_REAL /*const*/ p1ody2 CCTK_ATTRIBUTE_UNUSED  = INV(SQR(dy));
  CCTK_REAL /*const*/ p1odz2 CCTK_ATTRIBUTE_UNUSED  = INV(SQR(dz));
  CCTK_REAL /*const*/ pm1o12dx2 CCTK_ATTRIBUTE_UNUSED  = -0.0833333333333333333333333333333*INV(SQR(dx));
  CCTK_REAL /*const*/ pm1o12dy2 CCTK_ATTRIBUTE_UNUSED  = -0.0833333333333333333333333333333*INV(SQR(dy));
  CCTK_REAL /*const*/ pm1o12dz2 CCTK_ATTRIBUTE_UNUSED  = -0.0833333333333333333333333333333*INV(SQR(dz));
  
  /* Assign local copies of arrays functions */
  
  
  
  /* Calculate temporaries and arrays functions */
  
  /* Copy local copies back to grid functions */
  
  /* Loop over the grid points */
  #pragma omp parallel
  CCTK_LOOP3(initial_gaussian,
    i,j,k, imin[0],imin[1],imin[2], imax[0],imax[1],imax[2],
    cctk_ash[0],cctk_ash[1],cctk_ash[2])
  {
    ptrdiff_t /*const*/ index CCTK_ATTRIBUTE_UNUSED  = di*i + dj*j + dk*k;
    
    /* Assign local copies of grid functions */
    
    CCTK_REAL xL CCTK_ATTRIBUTE_UNUSED = x[index];
    
    
    /* Include user supplied include files */
    
    /* Precompute derivatives */
    
    /* Calculate temporaries and grid functions */
    CCTK_REAL CCTK_ATTRIBUTE_UNUSED phiL = exp(-100.*SQR(xL + t));
    
    CCTK_REAL CCTK_ATTRIBUTE_UNUSED piL = -200.*(xL + 
      t)*exp(-100.*SQR(xL + t));
    
    CCTK_REAL CCTK_ATTRIBUTE_UNUSED xCopyL = xL;
    
    /* Copy local copies back to grid functions */
    phi[index] = phiL;
    pi[index] = piL;
    xCopy[index] = xCopyL;
  }
  CCTK_ENDLOOP3(initial_gaussian);
}

extern "C" void initial_gaussian(CCTK_ARGUMENTS)
{
  DECLARE_CCTK_ARGUMENTS;
  DECLARE_CCTK_PARAMETERS;
  
  
  if (verbose > 1)
  {
    CCTK_VInfo(CCTK_THORNSTRING,"Entering initial_gaussian_Body");
  }
  
  if (cctk_iteration % initial_gaussian_calc_every != initial_gaussian_calc_offset)
  {
    return;
  }
  
  const char *const groups[] = {
    "grid::coordinates",
    "WaveHost::phi_g",
    "WaveHost::pi_g",
    "WaveHost::xCopy_g"};
  GenericFD_AssertGroupStorage(cctkGH, "initial_gaussian", 4, groups);
  
  
  GenericFD_LoopOverEverything(cctkGH, initial_gaussian_Body);
  
  if (verbose > 1)
  {
    CCTK_VInfo(CCTK_THORNSTRING,"Leaving initial_gaussian_Body");
  }
}