#ifdef CPU_ONLY
STUB_GPU(LogLayer);
-#else
-
-template <typename Dtype>
-void LogLayer<Dtype>::Forward_gpu(const vector<Blob<Dtype>*>& bottom,
- const vector<Blob<Dtype>*>& top) {
- const int count = bottom[0]->count();
- const Dtype* bottom_data = bottom[0]->gpu_data();
- Dtype* top_data = top[0]->mutable_gpu_data();
- if (input_scale_ == Dtype(1) && input_shift_ == Dtype(0)) {
- caffe_gpu_log(count, bottom_data, top_data);
- } else {
- caffe_copy(count, bottom_data, top_data);
- if (input_scale_ != Dtype(1)) {
- caffe_gpu_scal(count, input_scale_, top_data);
- }
- if (input_shift_ != Dtype(0)) {
- caffe_gpu_add_scalar(count, input_shift_, top_data);
- }
- caffe_gpu_log(count, top_data, top_data);
- }
- if (base_scale_ != Dtype(1)) {
- caffe_gpu_scal(count, base_scale_, top_data);
- }
-}
-
-template <typename Dtype>
-void LogLayer<Dtype>::Backward_gpu(const vector<Blob<Dtype>*>& top,
- const vector<bool>& propagate_down, const vector<Blob<Dtype>*>& bottom) {
- if (!propagate_down[0]) { return; }
- const int count = bottom[0]->count();
- const Dtype* bottom_data = bottom[0]->gpu_data();
- const Dtype* top_diff = top[0]->gpu_diff();
- Dtype* bottom_diff = bottom[0]->mutable_gpu_diff();
- caffe_copy(count, bottom_data, bottom_diff);
- if (input_scale_ != Dtype(1)) {
- caffe_gpu_scal(count, input_scale_, bottom_diff);
- }
- if (input_shift_ != Dtype(0)) {
- caffe_gpu_add_scalar(count, input_shift_, bottom_diff);
- }
- caffe_gpu_powx(count, bottom_diff, Dtype(-1), bottom_diff);
- if (backward_num_scale_ != Dtype(1)) {
- caffe_gpu_scal(count, backward_num_scale_, bottom_diff);
- }
- caffe_gpu_mul(count, top_diff, bottom_diff, bottom_diff);
-}
-
#endif
INSTANTIATE_CLASS(LogLayer);
--- /dev/null
+#include <algorithm>
+#include <vector>
+
+#include "caffe/layer.hpp"
+#include "caffe/neuron_layers.hpp"
+#include "caffe/util/math_functions.hpp"
+
+namespace caffe {
+
+template <typename Dtype>
+void LogLayer<Dtype>::Forward_gpu(const vector<Blob<Dtype>*>& bottom,
+ const vector<Blob<Dtype>*>& top) {
+ const int count = bottom[0]->count();
+ const Dtype* bottom_data = bottom[0]->gpu_data();
+ Dtype* top_data = top[0]->mutable_gpu_data();
+ if (input_scale_ == Dtype(1) && input_shift_ == Dtype(0)) {
+ caffe_gpu_log(count, bottom_data, top_data);
+ } else {
+ caffe_copy(count, bottom_data, top_data);
+ if (input_scale_ != Dtype(1)) {
+ caffe_gpu_scal(count, input_scale_, top_data);
+ }
+ if (input_shift_ != Dtype(0)) {
+ caffe_gpu_add_scalar(count, input_shift_, top_data);
+ }
+ caffe_gpu_log(count, top_data, top_data);
+ }
+ if (base_scale_ != Dtype(1)) {
+ caffe_gpu_scal(count, base_scale_, top_data);
+ }
+}
+
+template <typename Dtype>
+void LogLayer<Dtype>::Backward_gpu(const vector<Blob<Dtype>*>& top,
+ const vector<bool>& propagate_down, const vector<Blob<Dtype>*>& bottom) {
+ if (!propagate_down[0]) { return; }
+ const int count = bottom[0]->count();
+ const Dtype* bottom_data = bottom[0]->gpu_data();
+ const Dtype* top_diff = top[0]->gpu_diff();
+ Dtype* bottom_diff = bottom[0]->mutable_gpu_diff();
+ caffe_copy(count, bottom_data, bottom_diff);
+ if (input_scale_ != Dtype(1)) {
+ caffe_gpu_scal(count, input_scale_, bottom_diff);
+ }
+ if (input_shift_ != Dtype(0)) {
+ caffe_gpu_add_scalar(count, input_shift_, bottom_diff);
+ }
+ caffe_gpu_powx(count, bottom_diff, Dtype(-1), bottom_diff);
+ if (backward_num_scale_ != Dtype(1)) {
+ caffe_gpu_scal(count, backward_num_scale_, bottom_diff);
+ }
+ caffe_gpu_mul(count, top_diff, bottom_diff, bottom_diff);
+}
+
+INSTANTIATE_LAYER_GPU_FUNCS(LogLayer);
+
+} // namespace caffe