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cudnn_lrn_layer.cpp
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cudnn_lrn_layer.cpp
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#ifdef USE_CUDNN
#include <vector>
#include "caffe/layers/cudnn_lrn_layer.hpp"
namespace caffe {
template <typename Dtype>
void CuDNNLRNLayer<Dtype>::LayerSetUp(const vector<Blob<Dtype>*>& bottom,
const vector<Blob<Dtype>*>& top) {
LRNLayer<Dtype>::LayerSetUp(bottom, top);
CUDNN_CHECK(cudnnCreate(&handle_));
CUDNN_CHECK(cudnnCreateLRNDescriptor(&norm_desc_));
cudnn::createTensor4dDesc<Dtype>(&bottom_desc_);
cudnn::createTensor4dDesc<Dtype>(&top_desc_);
// create a LRN handle
handles_setup_ = true;
size_ = this->layer_param().lrn_param().local_size();
alpha_ = this->layer_param().lrn_param().alpha();
beta_ = this->layer_param().lrn_param().beta();
k_ = this->layer_param().lrn_param().k();
}
template <typename Dtype>
void CuDNNLRNLayer<Dtype>::Reshape(const vector<Blob<Dtype>*>& bottom,
const vector<Blob<Dtype>*>& top) {
LRNLayer<Dtype>::Reshape(bottom, top);
cudnn::setTensor4dDesc<Dtype>(&bottom_desc_, bottom[0]->num(),
this->channels_, this->height_, this->width_);
cudnn::setTensor4dDesc<Dtype>(&top_desc_, bottom[0]->num(),
this->channels_, this->height_, this->width_);
CUDNN_CHECK(cudnnSetLRNDescriptor(norm_desc_, size_, alpha_, beta_, k_));
}
template <typename Dtype>
CuDNNLRNLayer<Dtype>::~CuDNNLRNLayer() {
// Check that handles have been setup before destroying.
if (!handles_setup_) { return; }
cudnnDestroyTensorDescriptor(bottom_desc_);
cudnnDestroyTensorDescriptor(top_desc_);
// destroy LRN handle
cudnnDestroy(handle_);
}
INSTANTIATE_CLASS(CuDNNLRNLayer);
} // namespace caffe
#endif