mirror of
https://github.com/NVIDIA/TensorRT-LLM.git
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68 lines
2.6 KiB
C++
68 lines
2.6 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/batch_manager/common.h"
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#include "tensorrt_llm/executor/executor.h"
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#include "tensorrt_llm/runtime/bufferManager.h"
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#include "tensorrt_llm/runtime/iTensor.h"
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namespace xgrammar
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{
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class GrammarMatcher;
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class GrammarCompiler;
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} // namespace xgrammar
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namespace tensorrt_llm::batch_manager
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{
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class DecoderInputBuffers;
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class GuidedDecoder
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{
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public:
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using TensorPtr = runtime::ITensor::SharedPtr;
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using SizeType32 = tensorrt_llm::runtime::SizeType32;
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using BitmaskT = uint32_t;
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GuidedDecoder(executor::GuidedDecodingConfig const& guidedDecodingConfig, SizeType32 maxNumSequences,
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SizeType32 vocabSizePadded, nvinfer1::DataType logitsDtype, runtime::BufferManager const& runtimeBufferManager);
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void build(ScheduledRequests const& scheduledRequests);
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void execute(DecoderInputBuffers const& decoderInputBuffers, runtime::BufferManager const& runtimeBufferManager);
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private:
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executor::GuidedDecodingConfig::GuidedDecodingBackend mGuidedDecodingBackend;
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std::vector<std::shared_ptr<xgrammar::GrammarMatcher>> mXGrammarMatchers;
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std::shared_ptr<xgrammar::GrammarCompiler> mXGrammarCompiler;
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SizeType32 mMaxNumSequences;
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SizeType32 mVocabSizePadded;
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SizeType32 mBitmaskSize; // CeilDiv(vocabSizePadded, 32)
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nvinfer1::DataType mLogitsDtype;
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TensorPtr mLogitsBitmask; // [mMaxNumRequests, mBitmaskSize]
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TensorPtr mLogitsBitmaskHost; // [mMaxNumRequests, mBitmaskSize]
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TensorPtr mLogitsBitmaskPtrVec; // [mMaxNumRequests], pointers to the logitsBitmask in a batch
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TensorPtr mLogitsBitmaskPtrVecHost; // [mMaxNumRequests]
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TensorPtr mLogitsPtrVec; // [mMaxNumRequests], pointers to the logits in a batch
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TensorPtr mLogitsPtrVecHost; // [mMaxNumRequests]
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// BufferManager with a dedicated stream for async copy of buffers for guided decoding.
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runtime::BufferManager mCopyBufferManager;
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};
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} // namespace tensorrt_llm::batch_manager
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