Reducing memory traffic and accelerating prolog execution in a superscalar prolog system

Ruey Liang Ma*, Chung-Ping Chung

*此作品的通信作者

研究成果: Article同行評審

摘要

Memory access operations constitute about 32.7% of all the operations executed in a typical Prolog program Among these memory accesses. 75% are to the program control structures (environments and choice points) These memory accesses plus possible data cache misses greatly impair system performance, and the problem is even more severe in a VLIW, superscalar, or superpipelined Prolog system. This paper describes an innovative windowed register file management technique called SORWT (splittabie overlapping register window technique). With SORWT, environments, choice points, and arguments can be stored in a windowed register file. SORWT reduces the number of memory accesses to only 25% of the number made when a conventional stack scheme is used. This paper describes in detail how Warren and PLM instructions can be implemented using SORWT, and it presents a register file overflow/underflow handling mechanism called the memory window matrix (MWM) and a mapping function for use between register windows and the MWM. Thirty benchmark programs are used to study performance issues, the overhead of SORWT, optimal register file and window sizes, and the argument overflow rate.

原文English
頁(從 - 到)859-884
頁數26
期刊Journal of Information Science and Engineering
15
發行號6
DOIs
出版狀態Published - 1 十一月 1999

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