.png){kind=icon}
返回
Quick-Div: Rethinking Integer Divider Design for FPGA-based Soft-processors
.png){kind=icon}
PRE
AI
DOI：10.1145/3502492.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
In today's FPGA-based soft-processors, one of the slowest instructions is integer division. Compared to the lowsingle-digit latency of other arithmetic operations, the fixed 32-cycle latency of radix-2 division is substantially longer. Given that today's soft-processors typically only implement radix-2 division-if they support hardware division at all-there is significant potential to improve the performance of integer dividers. In this work, we present a set of high-performance, data-dependent, variable-latency integer dividers for FPGA-based soft-processors thatwe call Quick-Div. We compare them to various radix-N dividers and provide a thorough analysis in terms of latency and resource usage. In addition, we analyze the frequency scaling for such divider designs when (1) treated as a stand-alone unit and (2) integrated as part of a high-performance soft-processor. Moreover, we provide additional theoretical analysis of different dividers' behaviour and develop a new better-performing Quick-Div variant, called Quick-radix-4. Experimental results show that our Quick-radix-4 design can achieve up to 6.8x better performance and 6.1x better performance-per-LUT over the radix-2 divider for applications such as random number generation. Even in cases where division operations constitute as little as 1% of all executed instructions, Quick-radix-4 provides a performance uplift of 16% compared to the radix-2 divider.
Keyword:
operator
integer divider
variable-latency pipeline
soft-processor
期刊
IF:
2.8
论文数:
599
被引数:
810
机构
引用论文
The Effects of Nudges on Students’ Use of the Diagnostic Assessment and Achievement of College Skills暗示对学生诊断性评估使用及大学技能达成的影响
OAAI
OAAI分享收藏Stabilization of microtubule dynamics at anaphase onset promotes chromosome segregation.png)
Nature
OAAI
NatureIF0
OAAI分享收藏Socially-Assistive Robots to Enhance Learning for Secondary Students with Intellectual Disabilities and Autism社会辅助机器人增强有智力障碍和自闭症的中学生的学习
PREAI
分享收藏Thx 4 the msg: Assessing the Impact of Texting on Student Engagement and Persistence感谢信息：评估短信对学生参与度和坚持性的影响OAAI
OAAI分享收藏Trends in Admissions, Attrition, Dismissals, and Board Performance for Pharmacy Students etween 2012 and 20222012年至2022年间药学学生入学、流失、开除及委员会表现的趋势OAAI
OAAI分享收藏
查看更多内容