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