NDLI: Spatio-temporal memory streaming

Content Provider	ACM Digital Library
Author	Wenisch, Thomas F. Ailamaki, Anastasia Somogyi, Stephen Falsafi, Babak
Abstract	Recent research advocates memory streaming techniques to alleviate the performance bottleneck caused by the high latencies of off-chip memory accesses. Temporal memory streaming replays previously observed miss sequences to eliminate long chains of dependent misses. Spatial memory streaming predicts repetitive data layout patterns within fixed-size memory regions. Because each technique targets a different subset of misses, their effectiveness varies across workloads and each leaves a significant fraction of misses unpredicted. In this paper, we propose Spatio-Temporal Memory Streaming (STeMS) to exploit the synergy between spatial and temporal streaming. We observe that the order of spatial accesses repeats both within and across regions. STeMS records and replays the temporal sequence of region accesses and uses spatial relationships within each region to dynamically reconstruct a predicted total miss order. Using trace-driven and cycle-accurate simulation across a suite of commercial workloads, we demonstrate that with similar implementation complexity as temporal streaming, STeMS achieves equal or higher coverage than spatial or temporal memory streaming alone, and improves performance by 31%, 3%, and 18% over stride, spatial, and temporal prediction, respectively.
Starting Page	69
Ending Page	80
Page Count	12
File Format	PDF
ISSN	01635964
DOI	10.1145/1555815.1555766
Journal	ACM SIGARCH Computer Architecture News (CARN)
Volume Number	37
Issue Number	3
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1981-04-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Prefetching Temporal correlation Spatial correlation
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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