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https://github.com/NVIDIA/TensorRT-LLM.git
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72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
/*
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* Copyright (c) 2022-2024, 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/runtime/iGptDecoderBatched.h"
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#include "tensorrt_llm/runtime/iStatefulGptDecoder.h"
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namespace tensorrt_llm::runtime
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{
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class GptDecoderBatched;
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//! GPT decoder class with support for in-flight batching and stateful interface
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class StatefulGptDecoderBatched : public IStatefulGptDecoder
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{
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public:
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using CudaStreamPtr = std::shared_ptr<CudaStream>;
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using TensorPtr = ITensor::SharedPtr;
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using DecoderFinishedEventPtr = std::unique_ptr<decoder_batch::DecoderFinishedEvent const>;
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StatefulGptDecoderBatched(
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CudaStreamPtr stream, SpeculativeDecodingMode const& speculativeDecodingMode, nvinfer1::DataType dtype);
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~StatefulGptDecoderBatched() override;
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// IStatefulGptDecoder implementation
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void setup(executor::DecodingMode const& mode, SizeType32 maxBatchSize, SizeType32 maxBeamWidth,
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SizeType32 maxAttentionWindow, SizeType32 sinkTokenLength, SizeType32 maxSequenceLength,
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SizeType32 maxTokensPerStep, nvinfer1::DataType dtype, ModelConfig const& modelConfig,
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WorldConfig const& worldConfig) override;
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void newBatch(GenerationInput const& inputs, GenerationOutput const& outputs, SamplingConfig const& samplingConfig,
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ModelConfig const& modelConfig) override;
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void forwardAsync(decoder::Output& output, decoder::Input const& input) override;
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void forwardSync() override;
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[[nodiscard]] TensorPtr getIds() const override;
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[[nodiscard]] TensorPtr getGatheredIds() const override;
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void finalize(SamplingConfig const& samplingConfig) const override;
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[[nodiscard]] TensorPtr getCumLogProbs() const override;
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[[nodiscard]] TensorPtr getLogProbs() const override;
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[[nodiscard]] TensorPtr getNewTokens(SizeType32 iter = 0) const override;
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[[nodiscard]] TensorPtr getNbFinished() const override;
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private:
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std::unique_ptr<GptDecoderBatched> mDecoder;
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// only used for IStatefulGptDecoder
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DecoderFinishedEventPtr mDecoderFinishEvent;
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CudaEvent mForwardEvent;
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TensorPtr mFinishedSum;
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TensorPtr mBatchSlotsSetup; // [maxBatchSize], int32_t, address map, pinned
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TensorPtr mBatchSlotsDecoder; // [maxTokensPerEngineStep, maxBatchSize], int32_t, address map, pinned
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};
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} // namespace tensorrt_llm::runtime
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