Article(id=1251458155910217837, tenantId=1146029695717560320, journalId=1251194880429441115, issueId=1251458153020342360, articleNumber=null, orderNo=null, doi=10.3979/j.issn.1673-825X.202406270158, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1719417600000, receivedDateStr=2024-06-27, revisedDate=1757952000000, revisedDateStr=2025-09-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1776300475336, onlineDateStr=2026-04-16, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1776300475336, onlineIssueDateStr=2026-04-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1776300475336, creator=13041195026, updateTime=1776300475336, updator=13041195026, issue=Issue{id=1251458153020342360, tenantId=1146029695717560320, journalId=1251194880429441115, year='2025', volume='37', issue='5', pageStart='627', pageEnd='780', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1776300474648, creator=13041195026, updateTime=1776311939434, updator=13041195026, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1251506239914586238, tenantId=1146029695717560320, journalId=1251194880429441115, issueId=1251458153020342360, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1251506239914586239, tenantId=1146029695717560320, journalId=1251194880429441115, issueId=1251458153020342360, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=741, endPage=747, ext={EN=ArticleExt(id=1251458157621493902, articleId=1251458155910217837, tenantId=1146029695717560320, journalId=1251194880429441115, language=EN, title=Distributed computing LSTM accelerator based on pulsating array architecture, columnId=1251458154354131041, journalTitle=Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition), columnName=Artificial Intelligenceand Big Data, runingTitle=null, highlight=null, articleAbstract=
A long short-term memory(LSTM)neural network edge computing accelerator based on distributed systolic array architecture was proposed on the resource limited edge computing devices. The design distributes input data storage to reduce data movement and power consumption, while data transmission in a systolic manner minimizes the idle rate of computing units and enhances computational efficiency. Experimental validation on a VU13P field-programmable gate array(FPGA)shows that the proposed LSTM accelerator achieves an effective computing power of 179.2 GOPS at an operating frequency of 200 MHz, with a dynamic power consumption of 0.343 W and an energy efficiency of 522.4 GOPS/W. Compared with typical existing designs, the proposed accelerator improves energy efficiency by more than 34%.
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针对在资源有限的边缘计算端部署长短时记忆(long short-term memory,LSTM)神经网络遇到的计算效率低、功耗高的问题,提出一种基于脉动阵列架构的分布式计算LSTM加速器设计方案。通过将输入数据分布式存储,从而以减少数据的流动性并降低功耗;通过脉动的方式传递数据,从而减少计算单元的空置率并提高计算效率。在VU13P系列现场可编程门阵列(field programmable gate array,FPGA)的验证结果表明,所设计的LSTM加速器在200 MHz的工作频率下有效算力179.2 GOPS,动态功耗0.343 W,能效比522.4 GOPS/W,相较于当前典型设计,能效比提升34%以上。
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, authorsList=张红升, 成卓立)}, authors=[Author(id=1251458163699040618, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhanghs@cqupt.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1251458165322236273, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, authorId=1251458163699040618, language=EN, stringName=Hongsheng ZHANG, firstName=Hongsheng, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, P R China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1251458165414510968, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, authorId=1251458163699040618, language=CN, stringName=张红升, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=重庆邮电大学 光电工程学院,重庆 400065, bio={"content":"
张红升,教授,博士生导师,博士,主要研究方向为超大规模集成电路与Soc设计、神经网络加速器设计等。E-mail: zhanghs@cqupt.edu.cn。
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张红升,教授,博士生导师,博士,主要研究方向为超大规模集成电路与Soc设计、神经网络加速器设计等。E-mail: zhanghs@cqupt.edu.cn。
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成卓立,硕士研究生,主要研究方向为神经网络加速器设计,可重构设计。E-mail: 1390764213@qq.com。
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成卓立,硕士研究生,主要研究方向为神经网络加速器设计,可重构设计。E-mail: 1390764213@qq.com。
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12(7):1731., articleTitle=An Instruction-Driven Batch-Based High-Performance Resource-Efficient LSTM Accelerator on FPGA, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1251458163564822880, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, xref=null, ext=[AuthorCompanyExt(id=1251458163573211489, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, companyId=1251458163564822880, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, P R China), AuthorCompanyExt(id=1251458163577405794, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, companyId=1251458163564822880, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=重庆邮电大学 光电工程学院,重庆 400065)])], figs=[ArticleFig(id=1251458166937043383, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Fig.1, caption=
LSTM basic unit structure diagram, figureFileSmall=6bDuTev53/rmO06hszuY8A==, figureFileBig=+qb+XKSZ1VA8WFk1ooZWpg==, tableContent=null), ArticleFig(id=1251458167071261118, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=图1, caption=
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Overall system architecture of LSTM accelerator in this article, figureFileSmall=faMKQG7kN0Svil6Rbu7d0g==, figureFileBig=tcgrTNqqv88XzTFaGsBJBA==, tableContent=null), ArticleFig(id=1251458167390028237, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=图2, caption=
本文LSTM加速器整体系统架构, figureFileSmall=faMKQG7kN0Svil6Rbu7d0g==, figureFileBig=tcgrTNqqv88XzTFaGsBJBA==, tableContent=null), ArticleFig(id=1251458167461331412, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Fig.3, caption=
Computational array(PE Array)architecture, figureFileSmall=ni1vfSi8F8QIGxA/S0R9jg==, figureFileBig=jTJH6whr3cYojuP1Ni7IqQ==, tableContent=null), ArticleFig(id=1251458167570383321, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=图3, caption=
计算阵列(PE Array)架构, figureFileSmall=ni1vfSi8F8QIGxA/S0R9jg==, figureFileBig=jTJH6whr3cYojuP1Ni7IqQ==, tableContent=null), ArticleFig(id=1251458167645880800, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Fig.4, caption=
Schematic diagram of vector multiplication operation, figureFileSmall=5aci4tP9xdpT16pcc++RHg==, figureFileBig=Ue1R9vKhz+j4D2Yw96UNHg==, tableContent=null), ArticleFig(id=1251458167750738408, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=图4, caption=
向量乘操作示意图, figureFileSmall=5aci4tP9xdpT16pcc++RHg==, figureFileBig=Ue1R9vKhz+j4D2Yw96UNHg==, tableContent=null), ArticleFig(id=1251458167826235884, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Fig.5, caption=
Weight parameter cutting method, figureFileSmall=PK4qzFypi5lwsmZFyZzd7A==, figureFileBig=NN5xRhWfjVkdfmHBJ/vTlw==, tableContent=null), ArticleFig(id=1251458167964647921, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=图5, caption=
权重参数切割方式, figureFileSmall=PK4qzFypi5lwsmZFyZzd7A==, figureFileBig=NN5xRhWfjVkdfmHBJ/vTlw==, tableContent=null), ArticleFig(id=1251458168056922614, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Fig.6, caption=
Distributed computing architecture diagram based on pulsating array, figureFileSmall=77b1tmWLqlmXinpmTa2jCg==, figureFileBig=QziVEcuVh3kxxl4PIEDG/Q==, tableContent=null), ArticleFig(id=1251458168132420089, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=图6, caption=
基于脉动阵列的分布式计算架构图, figureFileSmall=77b1tmWLqlmXinpmTa2jCg==, figureFileBig=QziVEcuVh3kxxl4PIEDG/Q==, tableContent=null), ArticleFig(id=1251458169726255613, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Fig.7, caption=
PE structure, figureFileSmall=pshEOnGrix/dI473RUNXHA==, figureFileBig=uf6WZDHqxyYH1cS7M9TO7A==, tableContent=null), ArticleFig(id=1251458169843696133, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=图7, caption=
PE结构, figureFileSmall=pshEOnGrix/dI473RUNXHA==, figureFileBig=uf6WZDHqxyYH1cS7M9TO7A==, tableContent=null), ArticleFig(id=1251458169961136651, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Fig.8, caption=
Accelerator power consumption diagram and the proportion of power consumption of each resource in the calculation module, figureFileSmall=Hmyn70m5ZYpjcnk43a9wDA==, figureFileBig=hAftiC9J4eL3Sfj2uwGM5w==, tableContent=null), ArticleFig(id=1251458170095354384, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=图8, caption=
加速器功耗及计算模块中各个资源功耗占比图, figureFileSmall=Hmyn70m5ZYpjcnk43a9wDA==, figureFileBig=hAftiC9J4eL3Sfj2uwGM5w==, tableContent=null), ArticleFig(id=1251458170200211991, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Tab.1, caption=
Hardware resource utilization
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| 资源类型 | 消耗量 |
|---|
| LUT | 15257 |
| Register | 16836 |
| DSP | 507 |
| BRAM | 256 |
), ArticleFig(id=1251458170279903775, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=表1, caption=
硬件资源消耗
, figureFileSmall=null, figureFileBig=null, tableContent=
| 资源类型 | 消耗量 |
|---|
| LUT | 15257 |
| Register | 16836 |
| DSP | 507 |
| BRAM | 256 |
), ArticleFig(id=1251458170367984165, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Tab.2, caption=
Performance comparison between FPGA and CPU
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| 类别 | VU13P | CPU |
|---|
| 单张图片计算时间/μs | 24.26 | 2630 |
| 静态功耗/W | 2.958 | 14.2 |
| 峰值功耗/W | 3.301 | 41.5 |
| 实际功耗/W | 0.343 | 27.3 |
| 有效算力/GOPS | 179.2 | 1.07 |
| 能效比/(GOPS/W) | 522.4 | 0.039 |
), ArticleFig(id=1251458170447675947, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=表2, caption=
FPGA与CPU数据对比
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| 类别 | VU13P | CPU |
|---|
| 单张图片计算时间/μs | 24.26 | 2630 |
| 静态功耗/W | 2.958 | 14.2 |
| 峰值功耗/W | 3.301 | 41.5 |
| 实际功耗/W | 0.343 | 27.3 |
| 有效算力/GOPS | 179.2 | 1.07 |
| 能效比/(GOPS/W) | 522.4 | 0.039 |
), ArticleFig(id=1251458170531562033, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=EN, label=Tab.3, caption=
Performance comparison with prior LSTM accelerators
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类别 | 文献[7] | 文献[9] | 文献[15] | 文献[16] | 本文 |
|---|
| FPGA型号 | Arria10 | Stratix10 GX2800 | XCKU9P | AlevoU50 | VU13P |
| 工作频率/MHz | 150 | 250 | 200 | 280 | 200 |
| DSP/个 | 0 | 5245 | 1600 | 4224 | 507 |
| LUT/个 | 257871 | 487232 | 5600 | 122935 | 15257 |
| 有效算力/GOPS | 2220 | 29574 | 200 | 2036 | 179.2 |
| 实际功耗/W | 5.7 | 98 | 9.0 | 32.3 | 0.343 |
| 能效比/GOPS/W | 398.5 | 302 | 177.8 | 62.84 | 522.4 |
), ArticleFig(id=1251458170607059510, tenantId=1146029695717560320, journalId=1251194880429441115, articleId=1251458155910217837, language=CN, label=表3, caption=
与其他文献LSTM加速器性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类别 | 文献[7] | 文献[9] | 文献[15] | 文献[16] | 本文 |
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| FPGA型号 | Arria10 | Stratix10 GX2800 | XCKU9P | AlevoU50 | VU13P |
| 工作频率/MHz | 150 | 250 | 200 | 280 | 200 |
| DSP/个 | 0 | 5245 | 1600 | 4224 | 507 |
| LUT/个 | 257871 | 487232 | 5600 | 122935 | 15257 |
| 有效算力/GOPS | 2220 | 29574 | 200 | 2036 | 179.2 |
| 实际功耗/W | 5.7 | 98 | 9.0 | 32.3 | 0.343 |
| 能效比/GOPS/W | 398.5 | 302 | 177.8 | 62.84 | 522.4 |
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