symmetry_kernel.h

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#ifndef __BC_SYMMETRY_KERNEL__
#define __BC_SYMMETRY_KERNEL__
 
template< typename T >
__global__ void symmetry_apply_vector_kernel(const int * __restrict__ xmsk,
                                             const int * __restrict__ ymsk,
                                             const int * __restrict__ zmsk,
                                             T * __restrict__ x,
                                             T * __restrict__ y,
                                             T * __restrict__ z,
                                             const int m,
                                             const int n,
                                             const int l) {
 
  const int idx = blockIdx.x * blockDim.x + threadIdx.x;
  const int str = blockDim.x * gridDim.x;
 
  for (int i = idx; i < m; i += str) {
    const int k = (xmsk[i+1] - 1);
    x[k] = 0.0;
  }
 
  for (int i = idx ; i < n; i += str) {
    const int k = (ymsk[i+1] - 1);
    y[k] = 0.0;
  }
 
  for (int i = idx; i < l; i += str) {
    const int k = (zmsk[i+1] - 1);
    z[k] = 0.0;
  }
  
}
 
#endif // __BC_SYMMETRY_KERNEL__