mirror of
https://github.com/NVIDIA/TensorRT-LLM.git
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81 lines
2.8 KiB
C++
81 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/cudaEvent.h"
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#include "tensorrt_llm/runtime/cudaStream.h"
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#include "tensorrt_llm/runtime/iTensor.h"
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#include "tensorrt_llm/runtime/modelConfig.h"
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#include "tensorrt_llm/runtime/worldConfig.h"
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#include <memory>
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#include <vector>
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namespace tensorrt_llm::batch_manager
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{
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class DecoderInputBuffers;
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class LlmRequest;
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} // namespace tensorrt_llm::batch_manager
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namespace tensorrt_llm::runtime
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{
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class SamplingConfig;
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namespace decoder
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{
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class DecoderState;
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}
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//! GPT decoder class with support for in-flight batching
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class IGptDecoderBatched
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{
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public:
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using CudaStreamPtr = std::shared_ptr<CudaStream>;
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using LlmRequestPtr = std::shared_ptr<tensorrt_llm::batch_manager::LlmRequest>;
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using RequestVector = std::vector<LlmRequestPtr>;
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using TensorPtr = std::shared_ptr<ITensor>;
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//! @brief Setup the decoder before calling `forward()`
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virtual void setup(executor::DecodingMode const& mode, SizeType32 maxNumSequences, SizeType32 maxBeamWidth,
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nvinfer1::DataType dtype, ModelConfig const& modelConfig, WorldConfig const& worldConfig)
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= 0;
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//! @brief Disable Lookahead decoding.
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virtual void disableLookahead(RequestVector const& genRequests, TensorPtr const& batchSlots) = 0;
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//! @brief Run one step for all requests without blocking the host process and return the token for synchronization.
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virtual CudaEvent forwardAsync(
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decoder::DecoderState const& decoderState, batch_manager::DecoderInputBuffers const& input)
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= 0;
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//! @brief Run one step for all requests and wait for completion on the host.
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virtual void forward(decoder::DecoderState const& decoderState, batch_manager::DecoderInputBuffers const& input)
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= 0;
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//! @brief Gather final beam search results for request `batchIdx`.
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//! Result will only be available after event returned
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[[nodiscard]] virtual CudaEvent finalize(decoder::DecoderState const& decoderState, SizeType32 batchSlot,
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SamplingConfig const& samplingConfig, bool streaming) const
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= 0;
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protected:
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IGptDecoderBatched() = default;
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virtual ~IGptDecoderBatched() = default;
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};
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} // namespace tensorrt_llm::runtime
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