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#include <caffe2/ideep/ideep_utils.h>
using namespace caffe2;
namespace {
class IDEEPLRNOp final : public IDEEPOperator {
public:
USE_IDEEP_DEF_ALIASES();
USE_IDEEP_OPERATOR_FUNCTIONS();
IDEEPLRNOp(const OperatorDef& operator_def, Workspace* ws)
: IDEEPOperator(operator_def, ws),
size_(OperatorBase::GetSingleArgument<int>("size", 0)),
alpha_(OperatorBase::GetSingleArgument<float>("alpha", 0)),
beta_(OperatorBase::GetSingleArgument<float>("beta", 0)),
bias_(OperatorBase::GetSingleArgument<float>("bias", 1)),
pre_pad_((size_ - 1) / 2) {
DCHECK_GT(size_, 0);
DCHECK_EQ(size_ % 2, 1);
DCHECK_GT(alpha_, 0);
DCHECK_GT(beta_, 0);
}
~IDEEPLRNOp() override {}
bool RunOnDevice() override {
auto& X = Input(INPUT);
auto* Y = Output(OUTPUT);
ideep::lrn_forward::compute(X, *Y, size_, alpha_, beta_, bias_);
return true;
}
private:
const int size_;
const float alpha_;
const float beta_;
const float bias_;
const int pre_pad_;
INPUT_TAGS(INPUT);
OUTPUT_TAGS(OUTPUT);
};
class IDEEPLRNGradientOp final : public IDEEPOperator {
public:
USE_IDEEP_DEF_ALIASES();
USE_IDEEP_OPERATOR_FUNCTIONS();
IDEEPLRNGradientOp(const OperatorDef& operator_def, Workspace* ws)
: IDEEPOperator(operator_def, ws),
size_(OperatorBase::GetSingleArgument<int>("size", 0)),
alpha_(OperatorBase::GetSingleArgument<float>("alpha", 0)),
beta_(OperatorBase::GetSingleArgument<float>("beta", 0)),
bias_(OperatorBase::GetSingleArgument<float>("bias", 1)),
pre_pad_((size_ - 1) / 2) {
DCHECK_GT(size_, 0);
DCHECK_EQ(size_ % 2, 1);
DCHECK_GT(alpha_, 0);
DCHECK_GT(beta_, 0);
}
~IDEEPLRNGradientOp() override {}
bool RunOnDevice() override {
const auto& X = Input(INPUT);
const auto& Y = Input(FILTER);
const auto& dY = Input(OUTPUT_GRAD);
auto* dX = Output(INPUT_GRAD);
ideep::lrn_backward::compute(X, dY, Y, *dX, size_, alpha_, beta_, bias_);
return true;
}
private:
const int size_;
const float alpha_;
const float beta_;
const float bias_;
const int pre_pad_;
INPUT_TAGS(INPUT, FILTER, OUTPUT_GRAD);
OUTPUT_TAGS(INPUT_GRAD);
};
REGISTER_IDEEP_OPERATOR(LRN, IDEEPLRNOp);
REGISTER_IDEEP_OPERATOR(LRNGradient, IDEEPLRNGradientOp);
} // namespace
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