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#include <algorithm>
#include <vector>
#include "caffe/layer.hpp"
#include "caffe/vision_layers.hpp"
namespace caffe {
template <typename Dtype>
__global__ void ThresholdForward(const int n, const Dtype threshold,
const Dtype* in, Dtype* out) {
CUDA_KERNEL_LOOP(index, n) {
out[index] = in[index] > threshold ? 1 : 0;
}
}
template <typename Dtype>
void ThresholdLayer<Dtype>::Forward_gpu(const vector<Blob<Dtype>*>& bottom,
const vector<Blob<Dtype>*>& top) {
const Dtype* bottom_data = bottom[0]->gpu_data();
Dtype* top_data = top[0]->mutable_gpu_data();
const int count = bottom[0]->count();
// NOLINT_NEXT_LINE(whitespace/operators)
ThresholdForward<Dtype><<<CAFFE_GET_BLOCKS(count), CAFFE_CUDA_NUM_THREADS>>>(
count, threshold_, bottom_data, top_data);
CUDA_POST_KERNEL_CHECK;
}
INSTANTIATE_LAYER_GPU_FORWARD(ThresholdLayer);
} // namespace caffe
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