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Graph Clustering Algorithm for RT Level ALU Technology Mapping
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作者 周海峰 林争辉 曹炜 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2002年第11期1162-1167,共6页
Register transfer level mapping (RTLM) algorithm for technology mapping at RT level is presented,which supports current design methodologies using high level design and design reuse.The mapping rules implement a sou... Register transfer level mapping (RTLM) algorithm for technology mapping at RT level is presented,which supports current design methodologies using high level design and design reuse.The mapping rules implement a source ALU using target ALU.The source ALUs and the target ALUs are all represented by the general ALUs and the mapping rules are applied in the algorithm.The mapping rules are described in a table fashion.The graph clustering algorithm is a branch and bound algorithm based on the graph formulation of the mapping algorithm.The mapping algorithm suits well mapping of regularly structured data path.Comparisons are made between the experimental results generated by 1 greedy algorithm and graphclustering algorithm,showing the feasibility of presented algorithm. 展开更多
关键词 high level synthesis technology mapping register transfer level arithmetic logic units graphclustering algorithm
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基于HLS的矩阵求逆算法设计优化 被引量:2
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作者 凌元 韩文俊 孙健 《电子技术与软件工程》 2021年第22期93-96,共4页
本文主要研究了HLS多层动态边界循环的优化策略。HLS利用C/C++语言完成算法设计和验证,通过高级综合工具自动生成RTL代码,显著缩短了算法FPGA设计复杂度及实现效率,在信号处理算法实现方面有着显著的优势。但对于具有多层动态循环边界... 本文主要研究了HLS多层动态边界循环的优化策略。HLS利用C/C++语言完成算法设计和验证,通过高级综合工具自动生成RTL代码,显著缩短了算法FPGA设计复杂度及实现效率,在信号处理算法实现方面有着显著的优势。但对于具有多层动态循环边界的算法,由于各层循环的数据依赖性及循环边界的不可预知性,HLS难以实现理想的结果。本文以Cholesky分解矩阵求逆算法为例,通过对矩阵求逆计算过程数据计算顺序、数据依赖性、运算步骤进行了分析与理论计算,提出了一种将多层循环优化为单层、两层循环的方法,解决了流水线优化指令高效应用问题。实现结果表明,经过优化后,在资源增加较少的情况下,矩阵求逆延迟性能提升118倍。 展开更多
关键词 HLS(High level synthesis) FPGA 矩阵求逆 Cholesky PIPELINE
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Simultaneous Partitioning and Scheduling Algorithm for Clustered Architecture
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作者 王磊 魏少军 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2004年第4期383-387,共5页
Clustered architecture is selected for high level synthesis,and a simultaneous partitioning and scheduling algorithm are proposed.Compared with traditional methods,circuit performance can be improved.Experiments show ... Clustered architecture is selected for high level synthesis,and a simultaneous partitioning and scheduling algorithm are proposed.Compared with traditional methods,circuit performance can be improved.Experiments show the efficiency of the method. 展开更多
关键词 high level synthesis SCHEDULING partitioning clustered architecture
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Technical Decisions on Several Key Problems in VHDLHigh Level Synthesis System
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作者 刘明业 张东晓 许庆平 《Journal of Computer Science & Technology》 SCIE EI CSCD 1999年第6期565-571,共7页
This paper studies the realization of the high level synthesis fromsystem behavioral (algorithmic or functional) description of circuits to structuraldescription of RTL and logic level. Based on Xilinx-FPGA libraryl t... This paper studies the realization of the high level synthesis fromsystem behavioral (algorithmic or functional) description of circuits to structuraldescription of RTL and logic level. Based on Xilinx-FPGA libraryl the structural description is mapped to technology-dependent ASIC, and FPGA chips are generated.The main points in this paper include the technical decision of each subsystem in aVHDL high level synthesis system HLS/BIT. The system is realized on SUN SPARC2, and correct running results are given. 展开更多
关键词 high level synthesis VHDL data flow control flow technologyMapping
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A SCHEDULING SCHEME WITH DYNAMIC FREQUENCY CLOCKING AND MULTIPLE VOLTAGES FOR LOW POWER DESIGNS
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作者 Wen Dongxin Wang Ling Yang Xiaozong 《Journal of Electronics(China)》 2007年第4期572-576,共5页
In this letter, a scheduling scheme based on Dynamic Frequency Clocking (DFC) and multiple voltages is proposed for low power designs under the timing and the resource constraints. Unlike the conventional methods at h... In this letter, a scheduling scheme based on Dynamic Frequency Clocking (DFC) and multiple voltages is proposed for low power designs under the timing and the resource constraints. Unlike the conventional methods at high level synthesis where only voltages of nodes were considered, the scheme based on a gain function considers both voltage and frequency simultaneously to reduce energy consumption. Experiments with a number of DSP benchmarks show that the proposed scheme achieves an effective energy reduction. 展开更多
关键词 Scheduling scheme Dynamic Frequency Clocking (DFC) Multiple voltages High level synthesis
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