CCTK_CUDA_KERNEL initial_gaussian TYPE=gpu_cuda/3dblock STENCIL="0,0,0,0,0,0" TILE="8,8,8" SHARECODE=yes
{
  CCTK_CUDA_KERNEL_VARIABLE  cached=yes intent=out
  {
    phi
  }
  "phi"
  
  CCTK_CUDA_KERNEL_VARIABLE  cached=yes intent=in
  {
    x
  }
  "x"
}