典型文献
Accelerating Data Transfer in Dataflow Architectures Through a Look-Ahead Acknowledgment Mechanism
文献摘要：
The dataflow architecture,which is characterized by a lack of a redundant unified control logic,has been shown to have an advantage over the control-flow architecture as it improves the computational performance and power efficiency,especially of applications used in high-performance computing(HPC).Importantly,the high computational efficiency of systems using the dataflow architecture is achieved by allowing program kernels to be activated in a simultaneous manner.Therefore,a proper acknowledgment mechanism is required to distinguish the data that logically belongs to different contexts.Possible solutions include the tagged-token matching mechanism in which the data is sent before acknowledgments are received but retried after rejection,or a handshake mechanism in which the data is only sent after acknowledgments are received.However,these mechanisms are characterized by both inefficient data transfer and increased area cost.Good performance of the dataflow architecture depends on the efficiency of data transfer.In order to optimize the efficiency of data transfer in existing dataflow architectures with a minimal increase in area and power cost,we propose a Look-Ahead Acknowledgment(LAA)mechanism.LAA accelerates the execution flow by speculatively acknowledging ahead without penalties.Our simulation analysis based on a handshake mechanism shows that our LAA increases the average utilization of computational units by 23.9％,with a reduction in the average execution time by 17.4％and an increase in the average power efficiency of dataflow processors by 22.4％.Crucially,our novel approach results in a relatively small increase in the area and power consumption of the on-chip logic of less than 0.9％.In conclusion,the evaluation results suggest that Look-Ahead Acknowledgment is an effective improvement for data transfer in existing dataflow architectures.
文献关键词：
中图分类号：
作者姓名：
Yu-Jing Feng;De-Jian Li;Xu Tan;Xiao-Chun Ye;Dong-Rui Fan;Wen-Ming Li;Da Wang;Hao Zhang;Zhi-Min Tang
作者机构：
State Key Laboratory of Computer Architecture,Institute of Computing Technology,Chinese Academy of Sciences Beijing 100190,China;Beijing Smartchip Microelectronics Technology Company Limited,Beijing 100000,China;School of Computer and Control Engineering,University of Chinese Academy of Sciences,Beijing 100190,China
文献出处：
引用格式：
[1]Yu-Jing Feng;De-Jian Li;Xu Tan;Xiao-Chun Ye;Dong-Rui Fan;Wen-Ming Li;Da Wang;Hao Zhang;Zhi-Min Tang-.Accelerating Data Transfer in Dataflow Architectures Through a Look-Ahead Acknowledgment Mechanism)[J].计算机科学技术学报（英文版）,2022(04):942-959
A类：
Dataflow,Acknowledgment,acknowledgments,retried,speculatively,acknowledging
B类：
Accelerating,Transfer,Architectures,Through,Look,Ahead,Mechanism,dataflow,which,characterized,by,lack,redundant,unified,control,has,been,shown,have,advantage,over,improves,computational,performance,power,efficiency,especially,applications,used,high,computing,HPC,Importantly,systems,using,achieved,allowing,program,kernels,activated,simultaneous,manner,Therefore,proper,required,distinguish,that,logically,belongs,different,contexts,Possible,solutions,include,tagged,token,matching,sent,before,received,but,after,rejection,handshake,only,However,these,mechanisms,both,inefficient,transfer,increased,area,cost,Good,depends,In,order,optimize,existing,architectures,minimal,propose,LAA,accelerates,execution,ahead,without,penalties,Our,simulation,analysis,shows,our,increases,average,utilization,units,reduction,processors,Crucially,novel,approach,results,relatively,small,consumption,chip,less,than,conclusion,evaluation,suggest,effective,improvement
AB值：
0.466804
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