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#ifndef CAFFE2_OPERATORS_GELU_OP_H_
#define CAFFE2_OPERATORS_GELU_OP_H_
#include "caffe2/core/common.h"
#include "caffe2/core/context.h"
#include "caffe2/core/export_caffe2_op_to_c10.h"
#include "caffe2/core/operator.h"
#include "caffe2/operators/elementwise_ops.h"
C10_DECLARE_EXPORT_CAFFE2_OP_TO_C10(Gelu);
namespace caffe2 {
namespace gelu_utils {
constexpr float kFastCoeff = 0.044715f;
} // namespace gelu_utils
template <class Context>
struct GeluFunctor {
explicit GeluFunctor(OperatorBase& op)
: fast_gelu(op.GetSingleArgument<bool>("fast_gelu", false)) {}
template <typename T>
bool operator()(const int N, const T* X, T* Y, Context* context) const;
const bool fast_gelu;
};
template <class Context>
struct GeluGradientFunctor {
explicit GeluGradientFunctor(OperatorBase& op)
: fast_gelu(op.GetSingleArgument<bool>("fast_gelu", false)) {}
template <typename T>
bool Forward(
const std::vector<int>& dY_dims,
const std::vector<int>& X_dims,
const T* dY,
const T* X,
T* dX,
Context* context) const;
const bool fast_gelu;
};
template <class Context>
using GeluOp = UnaryElementwiseWithArgsOp<
TensorTypes<float>,
Context,
GeluFunctor<Context>>;
template <class Context>
using GeluGradientOp = BinaryElementwiseWithArgsOp<
TensorTypes<float>,
Context,
GeluGradientFunctor<Context>>;
} // namespace caffe2
#endif // CAFFE2_OPERATORS_GELU_OP_H_
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