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Failure model of environmental PPP project based on extension matter-element theory
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作者 REN Zhi-tao FU Hong-yu +3 位作者 GUO Ya GUO Lin-lin Patrick X.W.Zou WU Ji-ke 《Ecological Economy》 2022年第2期121-135,共15页
In recent years,with the global environmental pollution becoming more and more serious,and the widespread application of PPP model in various fields,PPP model provides a new solution for environmental governance.Howev... In recent years,with the global environmental pollution becoming more and more serious,and the widespread application of PPP model in various fields,PPP model provides a new solution for environmental governance.However,due to environmental management of PPP projects in practice by various factors,such as the lack of social value,organizational management confusion and consultation communication is not in place cause group events,resulting in the failure of the PPP project,and a large number of economic losses.Therefore,the objective of this paper is to ensure the smooth implementation of environmental management of PPP projects,to reduce the risk to avoid failure.The research methods adopted in this study include literature review and case analysis,based on the theory of environmental governance PPP,select 15 failure cases analysis failure reasons,identify environmental management PPP project’s 18 failure factors,starting from the government to enterprises.The index is divided into three dimensions:social system,organization and management,public behavior,and determination of failure measure index system.Based on the theory of the open matter,the failure measure model is established,and the failure factor index is measured and analyzed.The degree of failure of the project is clarified and the PPP project is analyzed by a sewage treatment to verify the reasonable model of the failure measure model.The feasibility of the future of environmental management PPP project failure risk provides a practical tool. 展开更多
关键词 PPP projects extension matter-element environmental governance
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Multilayer Multidi mensional Extension Set Theory
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作者 曹少中 杨国为 涂序彦 《Journal of Beijing Institute of Technology》 EI CAS 2006年第2期172-176,共5页
In brder to study the contradiction problem of multilayer multidimensional complex systems, the concepts of extension field and stable field of intersection and union of multilayer multidimensional extension set are g... In brder to study the contradiction problem of multilayer multidimensional complex systems, the concepts of extension field and stable field of intersection and union of multilayer multidimensional extension set are given. Then the related operations and properties are discussed. The results of study expand the concepts of intersection and union of extension set to a general situation, and provide the theoretical basis for production of the concepts of intersection and union of multilayer multidimensional matter element system extension set. In this way, it will be possible that matter element system theory is used to creative designs of complex systems. 展开更多
关键词 multilayer multidimensional extension set extension field stable field
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Extension Error Set Based on Extension Set
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作者 Qixin Ye Jinge Zhou 《Applied Mathematics》 2013年第12期1669-1672,共4页
This paper gives the concepts of extension error set and fuzzy extension error set, discusses diverse extension error set and fuzzy extension error set based on extension set and error set, and puts forward the releva... This paper gives the concepts of extension error set and fuzzy extension error set, discusses diverse extension error set and fuzzy extension error set based on extension set and error set, and puts forward the relevant propositions and operations. Finally, it provides proofs of the soundness and completeness for the propositions and operations. 展开更多
关键词 extension set ERROR set FUZZY extension ERROR set
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World Records for Extension Well Set in Eastern South China Sea
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《China Oil & Gas》 CAS 1997年第3期167-167,共1页
关键词 World Records for extension Well set in Eastern South China Sea
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Extension测度和Fuzzy-Extension变换测度及其积分 被引量:2
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作者 仇计清 《河北轻化工学院学报》 1993年第2期5-11,共7页
提出Extension测度、Extension积分、Fuzzy-Extension变换测度、Fuzzy-Extension变换积分等概念,它们是解决度量领域内不相容问题的重要研究课题。在建立解决量子检测与估值中不相容问题的数学模型方面取得一定进展。
关键词 测度 模糊 扩张 变换 积分
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Extension集合辨析 被引量:2
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作者 左静 《郑州工业大学学报》 2001年第2期20-22,共3页
xtension集合是可拓学理论的基础概念之一 .探讨Extension集合的特色和它与其它集合的关系 ,对于明晰可拓学的生存基础、研究价值和发展前景非常重要 .通过比较 3种集合对论域元素的识别与分类原则 ,指出Fuzzy集合Extension集合均以Can... xtension集合是可拓学理论的基础概念之一 .探讨Extension集合的特色和它与其它集合的关系 ,对于明晰可拓学的生存基础、研究价值和发展前景非常重要 .通过比较 3种集合对论域元素的识别与分类原则 ,指出Fuzzy集合Extension集合均以Cantor集合为基础 ,但各自又具有其它集合不可替代的独特之处 .Extension集合的特色在于它对论域元素潜在属性的识别角度和元素属性在特定变换下的可转换性的识别功能 . 展开更多
关键词 extension集合 CANTOR集合 FUZZY集合 可拓学 论域元素 关联函数
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AN APPLICATION OF EXTENSION THEORY TO THE EVALUATION OF SLOPE STABILITY 被引量:4
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作者 LIU Muyu Wuhan University of Technology 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 1999年第4期57-62,共6页
The slope stability is affected by multiple factors. Thecomprehensive evaluation of the slope stability is a complicateproblem. The principles of extension theory have been used in thispaper to establish the matter-el... The slope stability is affected by multiple factors. Thecomprehensive evaluation of the slope stability is a complicateproblem. The principles of extension theory have been used in thispaper to establish the matter-element model for the evaluation ofslope stability. The quantitative evaluated results have been giventhrough the calculation of the matter-element dependent degree. 展开更多
关键词 extension theory matter-element model slope stability
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Application of extension method to fault diagnosis of transformer 被引量:4
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作者 邓宏贵 曹建 +1 位作者 罗安 夏向阳 《Journal of Central South University of Technology》 EI 2007年第1期88-93,共6页
A novel extension diagnosis method was proposed for enhancing the diagnosis ability of the conventional dissolved gas analysis. Based on the extension theory a matter-element model was established for qualitatively an... A novel extension diagnosis method was proposed for enhancing the diagnosis ability of the conventional dissolved gas analysis. Based on the extension theory a matter-element model was established for qualitatively and quantitatively describing the fault diagnosis problem of power transformers. The degree of relation based on the dependent functions was employed to determine the nature and the grade of the faults in a transformer system. And the proposed method was verified with the experimental data. The results show that accuracy rate of the diagnosis method exceeds 90% and two kinds of faults can be detected at the same time. 展开更多
关键词 power transformer fault diagnosis extension theory matter-element model dependent function
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Application of Matter-element Model in Soil Nutrient Evaluation of Ecological Fragile Region 被引量:2
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作者 TANG Jie WANG Chenye +3 位作者 LIN Nianfeng LI Zhaoyang LI Haiyi MAO Zilong 《Chinese Geographical Science》 SCIE CSCD 2009年第2期168-176,共9页
On the basis of the soil environment investigation in Da'an City, Jilin Province, China, 40 soil samples from main land use types were obtained and tested by standard method. Soil organic matter (SOM), total N (TN... On the basis of the soil environment investigation in Da'an City, Jilin Province, China, 40 soil samples from main land use types were obtained and tested by standard method. Soil organic matter (SOM), total N (TN), total P (TP), total K (TK), available N (AN), available P (AP) and available K (AK) were chosen as the evaluation factors. A regional soil nutrient evaluation model was developed based on the matter-element model. The results show that the soil samples with nutrient grade Ⅱ-Ⅴ respectively account for 10%, 30%, 32.5% and 27.5%, and those with grade Ⅳ and Ⅴ account for 60% in all samples. The relationship between soil nutrients and land types indicates that the nutrients of farmland are relatively good, with 41.7% of soil samples with the nutrient grade Ⅳ and Ⅴ. The nutrients of saline-alkali land and sandy land are the worst, with 100% of soil samples with the nutrient grade IV and V. And the ratios of soil samples grade IV and V in grassland and wasteland are respectively 62.5 % and 54.55%. Generally speaking, the soil nutrients status in Da'an City is poor, 60% of soil samples are in poor and extremely poor conditions, indicating that the soil has been severely eroded. Being a relatively superior evaluation method with more accurate resuits and spatial distribution consistency, matter-element analysis is more suitable for regional soil nutrient evaluation than previous models. 展开更多
关键词 soil nutrient evaluation matter-element model extension engineering theory ecological fragile region
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Optimizing pipeline for a RISC processor with multimedia extension ISA 被引量:1
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作者 肖志斌 刘鹏 +1 位作者 姚英彪 姚庆栋 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第2期269-274,共6页
The 32-bit extensible embedded processor RISC3200 originating from an RTL prototype core is intended for low-cost consumer multimedia products. In order to incorporate the reduced instruction set and the multimedia ex... The 32-bit extensible embedded processor RISC3200 originating from an RTL prototype core is intended for low-cost consumer multimedia products. In order to incorporate the reduced instruction set and the multimedia extension instruction set in a unifying pipeline, a scalable super-pipeline technique is adopted. Several other optimization techniques are proposed to boost the frequency and reduce the average CPI of the unifying pipeline. Based on a data flow graph (DFG) with delay information, the critical path of the pipeline stage can be located and shortened. This paper presents a distributed data bypass unit and a centralized pipeline control scheme for achieving lower CPI. Synthesis and simulation showed that the optimization techniques enable RISC3200 to operate at 200 MHz with an average CPI of 1.16. The core was integrated into a media SOC chip taped out in SMIC 0.18-micron technology. Preliminary testing result showed that the processor works well as we expected. 展开更多
关键词 PIPELINE RISC Single-instruction-multiple-data (SIMD) Instruction set architecture (ISA) Multimedia extension
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Power Quality Assessment Based on Rough AHP and Extension Analysis 被引量:1
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作者 Guofeng Liu Can Zhang +1 位作者 Zhengyi Zhu Xuyan Wang 《Energy Engineering》 EI 2022年第3期929-946,共18页
Due to the increasing power consumption of whole society and widely using of new non-linear and asymmetric electrical equipment,power quality assessment problem in the new period has attracted more and more attention.... Due to the increasing power consumption of whole society and widely using of new non-linear and asymmetric electrical equipment,power quality assessment problem in the new period has attracted more and more attention.The mathematical essence of comprehensive assessment of power quality is a multiattribute optimal decision-making problem.In order to solve the key problem of determining the indicator weight in the process of power quality assessment,a rough analytic hierarchy process(AHP)is proposed to aggregate the judgment opinions of multiple experts and eliminate the subjective effects of single expert judgment.Based on the advantage of extension analysis for solving the incompatibility problem,extension analysis method is adopted to assess the power quality.The assessment grades of both total power quality and each assessment indicator are obtained by correlation function.Through a case of 110 kV bus of a converting station in a wind farm of China,the feasibility and effectiveness of the propose method are demonstrated.The result shows that the proposed method can determine the overall power quality of power grid,as well as compare the differences among the performance of assessment indicators and provide the basis for further improving of power quality. 展开更多
关键词 Power quality comprehensive assessment decision making rough sets analytic hierarchy process extension analysis
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Analysis of Extension Categorical Data Mining Process for the Extension Interior Designing
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作者 Hui Ma Guangtian Zou 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2016年第6期26-31,共6页
On the basis of extension architectonics,this paper researches the process of extension categorical data mining for extension interior design. In accordance with the theory of extension data mining,the extension categ... On the basis of extension architectonics,this paper researches the process of extension categorical data mining for extension interior design. In accordance with the theory of extension data mining,the extension categorical data mining for the extension interior design can be divided into data preparation,the operation of mining and knowledge application. The paper expatiates the main content and cohesive relations of each link,and emphatically discusses extension acquisition,analysis extension,categorical mining extension,knowledge application extension and other several core nodes that are related with data. Through the knowledge fusion of extension architectonics and data mining,the paper discusses the process of knowledge requirements with multiple classification under different mining targets. The purpose of this paper is to explore a whole categorical data mining process of interior design from extension design data to the design of knowledge discovery and extension application. 展开更多
关键词 extension categorical data mining extension sets extension interior design
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Comparison of Classical Method, Extension Principle and α-Cuts and Interval Arithmetic Method in Solving System of Fuzzy Linear Equations
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作者 Sahidul Islam Md. Saiduzzaman +1 位作者 Md. Shafiqul Islam Abeda Sultana 《American Journal of Computational Mathematics》 2019年第1期1-24,共24页
The system of linear equations plays a vital role in real life problems such as optimization, economics, and engineering. The parameters of the system of linear equations are modeled by taking the experimental or obse... The system of linear equations plays a vital role in real life problems such as optimization, economics, and engineering. The parameters of the system of linear equations are modeled by taking the experimental or observation data. So the parameters of the system actually contain uncertainty rather than the crisp one. The uncertainties may be considered in term of interval or fuzzy numbers. In this paper, a detailed study of three solution techniques namely Classical Method, Extension Principle method and α-cuts and interval Arithmetic Method to solve the system of fuzzy linear equations has been done. Appropriate applications are given to illustrate each technique. Then we discuss the comparison of the different methods numerically and graphically. 展开更多
关键词 Fuzzy set CLASSICAL Solution extension Principle α-Cut and INTERVAL ARITHMETIC METHOD
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THEOREMS OF INTERVAL FUZZY SET AND ITS OPERATION RULES 被引量:3
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作者 吴顺祥 曹达 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2012年第2期136-144,共9页
Although the concept of interval fuzzy set and its properties have been defined, its three theorems and their effectiveness are not proved. Therefore, the knowledge presentation and its operation rules of interval fuz... Although the concept of interval fuzzy set and its properties have been defined, its three theorems and their effectiveness are not proved. Therefore, the knowledge presentation and its operation rules of interval fuzzy set are studied firstly, and then the cut set of interval fuzzy set is proposed. Moreover, the decomposition theo- rem, the representation theorem and the extension theorem of interval fuzzy set are presented. Finally, examples are given to demonstrate that the classical fuzzy set is a special case of interval fuzzy set and interval fuzzy set is an effective expansion of the classical fuzzy set. 展开更多
关键词 interval fuzzy set decomposition theorem representation theorem extension theorem
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材料界面运动的快速稳健的Level Set方法研究
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作者 王振海 杨彬 汪海滨 《陕西理工学院学报(自然科学版)》 2007年第1期5-8,共4页
Level Set方法是用于描述曲线或曲面演化过程的有效方法。自Osher和Setian提出Level Set方法以来。该方法已经在医学图像处理、自然现象的模拟仿真以及计算机视觉、拓扑优化工程等很多领域都得到了广泛的应用。Level Set方法区别于其它... Level Set方法是用于描述曲线或曲面演化过程的有效方法。自Osher和Setian提出Level Set方法以来。该方法已经在医学图像处理、自然现象的模拟仿真以及计算机视觉、拓扑优化工程等很多领域都得到了广泛的应用。Level Set方法区别于其它曲线演化方法的最大优势在于它的稳定性以及拓扑无关性,可以很好地处理界面的断裂与融合,但它最大的一个缺点就是其计算量太大。为此,本文给出了一种用于描述材料界面演化的窄带Level Set方法,将计算限制在当前界面的一个邻近区域内,从而大大地降低了计算工作量。通过实际算例对比,验证了本文方法的高效性与稳健性。 展开更多
关键词 LEVEL set 窄带 速率扩展
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New approach to develop a 3D non-isothermal computational framework for injection molding process based on level set method 被引量:2
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作者 Xin Zhuang Jie Ouyang +1 位作者 Chuntao Jiang Qingsheng Liu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2016年第7期832-842,共11页
The simulation of three-dimensional (3D) non-isothermal, non-Newtonian fluid filling process is an extremely difficult task and remains a challenging problem, which includes polymer melt flow with free surface coupl... The simulation of three-dimensional (3D) non-isothermal, non-Newtonian fluid filling process is an extremely difficult task and remains a challenging problem, which includes polymer melt flow with free surface coupled with transient heat transfer. This paper presents a full 3D non-isothermal two-phase flow model to predict the complex flow in melt filling process, where the Cross-WLF model is applied to characterize the rheological behav- ior of polymer melt. The governing equations are solved using finite volume method with SIMPLEC algorithm on collocated grids and the melt front is accurately captured by a high resolution level set method. A domain exten- sion technique is adopted to deal with the complex cavities, which greatly reduces the computational burden. To verify the validity of the developed 3D approach, the melts filling processes in two thin rectangular cavities (one of them with a cylindrical insert) are simulated. The predicted melt front interfaces are in good agreement with the experiment and commercial software prediction. For a case with a rather complex cavity, the dynamic filling process in a hemispherical shell is successfully simulated. All of the numerical results show that the developed numerical procedure can provide a reasonable orediction for injection molding process. 展开更多
关键词 Injection moldingNon-isothermalFinite voIume/SIMPLEC methodDomain extension techniqueHigh resolution level set method
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Tectonic Setting of the Cu-Ni Sulfide-Bearing Mafic-Ultramafic Complexes in Northern Jilin Province, NE China
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作者 Dacheng Jia Shen Liu +6 位作者 Hong Zhong Guangying Feng Youqiang Qi Wen Gao Xiao Zhang Tao Jiang Yongxin Mao 《International Journal of Geosciences》 2013年第2期317-328,共12页
There are series of Cu-Ni sulfide-bearing mafic-ultramafic intrusions widespread in north JilinProvince,Northeastern China. The intrusions formed in Xing’an-Mongolian Orogenic Belt near to the northeastern margin of ... There are series of Cu-Ni sulfide-bearing mafic-ultramafic intrusions widespread in north JilinProvince,Northeastern China. The intrusions formed in Xing’an-Mongolian Orogenic Belt near to the northeastern margin of North China Craton. The complexes were formed in almost same period according to the zircon U-Pb dating reported recently, which means that the complexes were formed in same tectonic period and belong to one tectonic magmatic event. The rock assemblages are different from the ophiolite type and Yidun type in orogenic belt. The mafic-ultramafic complexes formed in the range from 217 Ma to 232 Ma coeval with A-type granites in the area, which formed bimodal igneous rock assemblage. According to the regional angular unconformities, there were existed the orogenies of Caledonian, Hercynian, Early Indosinian, Late Indosinian and Yanshanian. The Early Indosinian coeval with orogenic I-type granites and sanukitie that suggesting the lithosphere thickening in the extrusion tectonic setting of orogenic processes, however the Late Indosinian coeval with bimodal igneous rock assemblage that suggesting the lithosphere thinning in the extension tectonic setting of post-orogenic processes in the Xing’an-Mongolian Orogenic Belt. Chemical composition of the mafic-ultramafic rocks has the characteristics of high-Mg and low-K tholeiites related with inter-continental post-orogenic tectonic setting. The trace elements indicate their formed in conditions of continental extension belt or initial rift and has the characteristics of revolution from oceanic island arc, volcanic arc of continental margin to continental extended belt. The low initial Sr isotopic ratios and positive εNd(t) values suggest that the initial magma of the complexes come from the parting melting of depleted lithospheric mantle. The depleted ithospheric mantle was new formed supported by zircon Hf isotope in Hongqiling complex. The depleted lithospheric mantle may be caused by the asthenosheric mantle upwelling and underplating in the tectonic setting of extension during the Late Indosinian post-orogenic processes. 展开更多
关键词 Mafic-Ultramafic INTRUSIONS TECTONIC setting POST-OROGENIC Processes LITHOSPHERIC extension
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The Preliminary Study of Problem Equation in Complex System Based on All Set Theory and Extenics
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作者 Zenan Zhou Guangjun Li Zhongxiong He 《通讯和计算机(中英文版)》 2006年第7期7-12,共6页
关键词 自扩充翻译程序 问题方程式 编译程序 计算机技术
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可拓理论在技术演化与预测中的应用潜力 被引量:1
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作者 李宜展 孔晔晗 李泽霞 《现代情报》 CSSCI 北大核心 2024年第10期86-102,共17页
[目的/意义]可拓理论是一种围绕矛盾问题本质和转化变换机理寻求解决问题途径的方法论,将其引入技术演化与预测分析,是应对当下国际科技竞合环境、面向国家科技自立自强需求的创新融合举措。在揭示复杂技术创新过程中,不仅可以强化分析... [目的/意义]可拓理论是一种围绕矛盾问题本质和转化变换机理寻求解决问题途径的方法论,将其引入技术演化与预测分析,是应对当下国际科技竞合环境、面向国家科技自立自强需求的创新融合举措。在揭示复杂技术创新过程中,不仅可以强化分析方法科学性,提高信度和效度,也为更深入地理解技术演化机制,寻找潜在发展机会提供可能。[方法/过程]本文在系统梳理技术演化与预测主流方法、可拓理论在知识管理与技术创新典型应用的基础上,总结当前方法存在的不足。以面向农业遥感领域作物估产问题为例,进行可拓分析和定性验证。[结果/结论]从理论基础、表达方式和分析过程3个角度,探讨可拓理论用于挖掘领域技术发展前沿方向的意义与潜力,指出利用可拓理论分析领域技术演化过程需要注意的问题,并通过案例分析证明理论思想的适用性。 展开更多
关键词 可拓理论 技术演化 技术预测 知识表达 可拓集
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面向RISC-V适配开发的x86 built-in函数转换方法
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作者 丁志远 朱家鑫 +1 位作者 吴国全 王伟 《广西大学学报(自然科学版)》 CAS 北大核心 2024年第3期620-636,共17页
新兴架构RISC-V的生态建设需要将其他架构函数或软件包向RISC-V架构迁移适配。在研究GCC特定架构适配的built-in函数向RISC-V架构迁移时,提出一套x86到RISC-V的built-in函数转换方法,对于非扩展指令集(属非向量类型)built-in函数,采用RI... 新兴架构RISC-V的生态建设需要将其他架构函数或软件包向RISC-V架构迁移适配。在研究GCC特定架构适配的built-in函数向RISC-V架构迁移时,提出一套x86到RISC-V的built-in函数转换方法,对于非扩展指令集(属非向量类型)built-in函数,采用RISC-V架构下相同功能的built-in或标准库函数替代;对于SSE扩展指令集built-in函数,建立数据类型映射和向量函数操作映射实现向RISC-V架构向量扩展函数或标准库函数的迁移,其中RVV函数迁移方式占比67%。实验结果表明:方法迁移的程序功能正确,方法有效。本文方法对其他扩展指令集built-in函数的迁移提供了指导,且与现有工作相比,更易扩展、覆盖面更广。 展开更多
关键词 函数迁移 built-in函数 指令扩展集 RISC-V迁移
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