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https://github.com/NVIDIA/TensorRT-LLM.git
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bca9a33b02
* Update TensorRT-LLM --------- Co-authored-by: Timur Abishev <abishev.timur@gmail.com> Co-authored-by: MahmoudAshraf97 <hassouna97.ma@gmail.com> Co-authored-by: Saeyoon Oh <saeyoon.oh@furiosa.ai> Co-authored-by: hattizai <hattizai@gmail.com>
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
/*
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* Copyright (c) 2024, NVIDIA CORPORATION. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "tensorrt_llm/layers/baseLayer.h"
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#include "tensorrt_llm/layers/decodingParams.h"
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#include "tensorrt_llm/runtime/common.h"
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#include <curand_kernel.h>
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namespace tensorrt_llm::layers
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{
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//! \brief Decoding layer for speculative decoding technique, when all tokens are generated, decoded and accepted in the
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//! engine.
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template <typename T>
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class ExplicitDraftTokensLayer : public BaseLayer
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{
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public:
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using Base = BaseLayer;
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using PathsVec = std::vector<std::vector<std::vector<runtime::SizeType32>>>;
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ExplicitDraftTokensLayer(DecoderDomain const& decoderDomain, std::shared_ptr<runtime::BufferManager> bufferManager);
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void setup(runtime::SizeType32 batchSize, runtime::SizeType32 beamWidth, BufferConstPtr batchSlots,
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std::shared_ptr<BaseSetupParams> const& setupParams) override;
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void forwardAsync(std::shared_ptr<BaseDecodingOutputs> const& outputs,
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std::shared_ptr<BaseDecodingInputs> const& inputs) override;
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//! @returns workspace needed for this layer in bytes
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[[nodiscard]] size_t getWorkspaceSize() const noexcept override;
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private:
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void allocateBuffer();
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void fillContextBuffers(
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SizeType32 batchSize, BufferConstPtr batchSlots, ExplicitDraftTokensSetupParams const& params);
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void convertPackedMask(ExplicitDraftTokensOutputs const& outputs, ExplicitDraftTokensInputs const& inputs);
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void splitInputDataToBatchSlots(ExplicitDraftTokensOutputs const& outputs, ExplicitDraftTokensInputs const& inputs);
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void packAcceptedPaths(ExplicitDraftTokensOutputs const& outputs, ExplicitDraftTokensInputs const& inputs);
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private:
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using Base::mDecoderDomain;
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SizeType32 mNumPaths;
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SizeType32 mMaxPathLength;
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size_t mScanWorkspaceSizeInBytes{0};
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size_t mReduceWorkspaceSizeInBytes{0};
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TensorPtr mRandomSeedsDevice;
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TensorPtr mCurandStatesDevice;
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BufferPtr mWorkspaceDevice;
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TensorPtr mGenerationLengthInclusiveSum;
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TensorPtr mMaxGenerationLength;
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TensorPtr mTemperatureDevice;
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TensorPtr mBestPathIndicesSlots;
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TensorPtr mLastDraftIndicesSlots;
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TensorPtr mTemperature;
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};
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} // namespace tensorrt_llm::layers
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