lightgbm-org--lightgbm
wehub-resource-sync
60 行
1.8 KiB
C++
60 行
1.8 KiB
C++
/*!
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* Copyright (c) 2021-2026 Microsoft Corporation. All rights reserved.
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* Copyright (c) 2021-2026 The LightGBM developers. All rights reserved.
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* Licensed under the MIT License. See LICENSE file in the project root for license information.
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*/
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#ifndef LIGHTGBM_INCLUDE_LIGHTGBM_CUDA_CUDA_METADATA_HPP_
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#define LIGHTGBM_INCLUDE_LIGHTGBM_CUDA_CUDA_METADATA_HPP_
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#ifdef USE_CUDA
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#include <LightGBM/cuda/cuda_utils.hu>
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#include <LightGBM/meta.h>
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#include <vector>
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namespace LightGBM {
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class CUDAMetadata {
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public:
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explicit CUDAMetadata(const int gpu_device_id);
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~CUDAMetadata();
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void Init(const std::vector<label_t>& label,
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const std::vector<label_t>& weight,
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const std::vector<data_size_t>& query_boundaries,
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const std::vector<label_t>& query_weights,
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const std::vector<double>& init_score);
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void SetLabel(const label_t* label, data_size_t len);
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void SetWeights(const label_t* weights, data_size_t len);
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void SetQuery(const data_size_t* query, const label_t* query_weights, data_size_t num_queries);
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void SetInitScore(const double* init_score, data_size_t len);
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const label_t* cuda_label() const { return cuda_label_.RawData(); }
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const label_t* cuda_weights() const { return cuda_weights_.RawData(); }
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const data_size_t* cuda_query_boundaries() const { return cuda_query_boundaries_.RawData(); }
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const label_t* cuda_query_weights() const { return cuda_query_weights_.RawData(); }
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private:
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CUDAVector<label_t> cuda_label_;
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CUDAVector<label_t> cuda_weights_;
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CUDAVector<data_size_t> cuda_query_boundaries_;
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CUDAVector<label_t> cuda_query_weights_;
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CUDAVector<double> cuda_init_score_;
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};
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} // namespace LightGBM
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#endif // USE_CUDA
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#endif // LIGHTGBM_INCLUDE_LIGHTGBM_CUDA_CUDA_METADATA_HPP_
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