| | |
| | | shortcut_kernel<<<cuda_gridsize(size), BLOCK>>>(size, minw, minh, minc, stride, sample, batch, w1, h1, c1, add, w2, h2, c2, out); |
| | | check_error(cudaPeekAtLastError()); |
| | | } |
| | | |
| | | __global__ void smooth_l1_kernel(int n, float *pred, float *truth, float *delta) |
| | | { |
| | | int i = (blockIdx.x + blockIdx.y*gridDim.x) * blockDim.x + threadIdx.x; |
| | | if(i < n){ |
| | | float diff = truth[i] - pred[i]; |
| | | if(abs(diff) > 1) delta[i] = diff; |
| | | else delta[i] = (diff > 0) ? 1 : -1; |
| | | } |
| | | } |
| | | |
| | | extern "C" void smooth_l1_gpu(int n, float *pred, float *truth, float *delta) |
| | | { |
| | | smooth_l1_kernel<<<cuda_gridsize(n), BLOCK>>>(n, pred, truth, delta); |
| | | check_error(cudaPeekAtLastError()); |
| | | } |