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#ifndef CAFFE2_OPERATORS_LENGTHS_TOP_K_OP_H_
#define CAFFE2_OPERATORS_LENGTHS_TOP_K_OP_H_
#include "caffe2/core/context.h"
#include "caffe2/core/logging.h"
#include "caffe2/core/operator.h"
#include "caffe2/operators/conv_pool_op_base.h"
#include "caffe2/utils/math.h"
namespace caffe2 {
template <typename T, class Context>
class LengthsTopKOp : public Operator<Context> {
public:
USE_OPERATOR_CONTEXT_FUNCTIONS;
template <class... Args>
explicit LengthsTopKOp(Args&&... args)
: Operator<Context>(std::forward<Args>(args)...),
OP_SINGLE_ARG(int, "k", k_, -1) {
CAFFE_ENFORCE_GE(k_, 1, "k argument must be >= 1");
}
bool RunOnDevice() override;
protected:
int k_;
INPUT_TAGS(X_IN, Y_IN);
OUTPUT_TAGS(TOPK_VALUES_OUT, TOPK_INDICES_OUT);
};
template <typename T, class Context>
class LengthsTopKGradientOp : public Operator<Context> {
public:
template <class... Args>
explicit LengthsTopKGradientOp(Args&&... args)
: Operator<Context>(std::forward<Args>(args)...),
OP_SINGLE_ARG(int, "k", k_, -1) {
CAFFE_ENFORCE_GE(k_, 1, "k argument must be >= 1");
}
USE_OPERATOR_CONTEXT_FUNCTIONS;
bool RunOnDevice() override;
protected:
int k_;
INPUT_TAGS(LENGTH_IN, INDICES_IN, DER_TOPK_IN);
OUTPUT_TAGS(DER_X_OUT);
};
} // namespace caffe2
#endif // CAFFE2_OPERATORS_LENGTHS_TOP_K_OP_H_
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