| | |
| | | |
| | | __global__ void forward_maxpool_layer_kernel(int n, int in_h, int in_w, int in_c, int stride, int size, int pad, float *input, float *output, int *indexes) |
| | | { |
| | | int h = (in_h + 2*pad)/stride; |
| | | int w = (in_w + 2*pad)/stride; |
| | | int h = (in_h + pad - size) / stride + 1; |
| | | int w = (in_w + pad - size) / stride + 1; |
| | | int c = in_c; |
| | | |
| | | int id = (blockIdx.x + blockIdx.y*gridDim.x) * blockDim.x + threadIdx.x; |
| | |
| | | id /= c; |
| | | int b = id; |
| | | |
| | | int w_offset = -pad; |
| | | int h_offset = -pad; |
| | | int w_offset = -pad / 2; |
| | | int h_offset = -pad / 2; |
| | | |
| | | int out_index = j + w*(i + h*(k + c*b)); |
| | | float max = -INFINITY; |
| | |
| | | |
| | | __global__ void backward_maxpool_layer_kernel(int n, int in_h, int in_w, int in_c, int stride, int size, int pad, float *delta, float *prev_delta, int *indexes) |
| | | { |
| | | int h = (in_h + 2*pad)/stride; |
| | | int w = (in_w + 2*pad)/stride; |
| | | int h = (in_h + pad - size) / stride + 1; |
| | | int w = (in_w + pad - size) / stride + 1; |
| | | int c = in_c; |
| | | int area = (size-1)/stride; |
| | | |
| | |
| | | id /= in_c; |
| | | int b = id; |
| | | |
| | | int w_offset = -pad; |
| | | int h_offset = -pad; |
| | | int w_offset = -pad / 2; |
| | | int h_offset = -pad / 2; |
| | | |
| | | float d = 0; |
| | | int l, m; |