NDLI: Cool-Mem:combining statically speculative memory accessing with selective address translation for energy efficiency (OPSR, Vol. 36, Issue. 5)

Content Provider	ACM Digital Library
Author	Moritz, Csaba Andras Ashok, Raksit Chheda, Saurabh
Abstract	This paper presents Cool-Mem, a family of memory system architectures that integrate conventional memory system mechanisms, energy-aware address translation, and compiler-enabled cache disambiguation techniques, to reduce energy consumption in general purpose architectures. It combines statically speculative cache access modes, a dynamic CAM based Tag-Cache used as backup for statically mispredicted accesses, various conventional multi-level associative cache organizations, embedded protection checking along all cache access mechanisms, as well as architectural organizations to reduce the power consumed by address translation in virtual memory. Because it is based on speculative static information, the approach removes the burden of provable correctness in compiler analysis passes that extract static information. This makes Cool-Mem applicable for large and complex applications, without having any limitations due to complexity issues in the compiler passes or the presence of precompiled static libraries. Based on extensive evaluation, for both SPEC2000 and Mediabench applications, 12% to 20% total energy savings are obtained in the processor, with performance ranging from 1.2% degradation to 8% improvement, for the applications studied.
Starting Page	133
Ending Page	143
Page Count	11
File Format	PDF
ISSN	01635980
DOI	10.1145/635508.605412
Journal	ACM SIGOPS Operating Systems Review (OPSR)
Volume Number	36
Issue Number	5
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1975-04-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Information Systems

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