mirror of
https://github.com/NVIDIA/TensorRT-LLM.git
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75 lines
2.9 KiB
C++
75 lines
2.9 KiB
C++
/*
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* Copyright (c) 2019-2024, NVIDIA CORPORATION. All rights reserved.
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* Copyright (c) 2021, NAVER Corp. Authored by CLOVA.
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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 <curand_kernel.h>
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#include "tensorrt_llm/common/tensor.h"
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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/decodingMode.h"
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#include "tensorrt_llm/runtime/iTensor.h"
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namespace tensorrt_llm
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{
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namespace layers
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{
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//! \brief Layer to ban specific words from being sampled.
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//! Supports banning bad words and repeating N grams.
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//! Set badWordsPtr, maxBadWordsLen and badWordsLengths to ban bad words.
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//! Set noRepeatNgramSize in input params to ban repeat Ngrams.
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//! Layer modifies logits in-place.
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template <typename T>
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class BanWordsLayer : public BaseLayer
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{
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public:
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BanWordsLayer(runtime::DecodingMode const& mode, DecoderDomain const& decoderDomain, cudaStream_t stream,
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std::shared_ptr<tensorrt_llm::common::IAllocator> allocator);
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~BanWordsLayer() override = default;
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void setup(runtime::SizeType32 batchSize, runtime::SizeType32 beamWidth, runtime::SizeType32 const* batchSlots,
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std::shared_ptr<BaseSetupParams> setupParams) override;
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//! \brief Modifies 'outputs->logits' in-place with -INF for banned words
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void forward(std::shared_ptr<BaseOutputParams> outputs, std::shared_ptr<BaseInputParams> inputs) override;
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private:
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static void banRepeatNGrams(tc::Tensor& logits, std::shared_ptr<DynamicDecodeOutputParams> const& outputs,
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std::shared_ptr<DynamicDecodeInputParams> const& params, runtime::SizeType32 const* batchSlots,
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runtime::SizeType32 batchSize, runtime::SizeType32 beamWidth, runtime::SizeType32 maxSeqLen,
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runtime::SizeType32 vocabSizePadded, cudaStream_t stream);
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static void banBadWords(tc::Tensor& logits, std::shared_ptr<DynamicDecodeOutputParams> const& outputs,
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std::shared_ptr<DynamicDecodeInputParams> const& params, runtime::SizeType32 const* batchSlots,
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runtime::SizeType32 batchSize, runtime::SizeType32 beamWidth, runtime::SizeType32 maxSeqLen,
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runtime::SizeType32 vocabSizePadded, cudaStream_t stream);
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private:
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using BaseLayer::mWorkspaceSize;
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using BaseLayer::mAllocatedSize;
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using BaseLayer::mStream;
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using BaseLayer::mAllocator;
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runtime::DecodingMode mDecodingMode;
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};
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} // namespace layers
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} // namespace tensorrt_llm
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