NDLI: Performance optimization of throttled time-warp simulation

Content Provider	IEEE Xplore Digital Library
Author	Seng Chuan Tay Yong Meng Teo
Copyright Year	2001
Description	Author affiliation: Dept. of Comput. Sci., Nat. Univ. of Singapore, Singapore (Seng Chuan Tay)
Abstract	While constraining the speculation in time warp (TW) tends to decrease the number of false event executions, it also introduces an opportunity cost when the processors are not fully utilized. To obtain good runtime performance such a trade-off must be optimized. This paper studies the implications of regulating speculation in TW, and develops an analytic framework for optimizing the elapsed time of TW simulations. By aggregating the effect of three time components, namely computation time, communication time and processor idle time, our analytic framework optimizes the degree of speculation for AP3000 performance. Our experiments on a Fujitsu AP3000 distributed-memory parallel computer simulating several applications show that the predicted performance metrics deviate from the measured values by less than 8%. Both the analytical and experimental results have ascertained that speculation without rollbacks may not produce the best elapsed time. Instead, a controlled degree of causality error is preferred in most practical cases.
Sponsorship	Soc. Comput. Simulation Int
Starting Page	211
Ending Page	218
File Size	645983
Page Count	8
File Format	PDF
ISBN	0769510922
ISSN	1080241X
DOI	10.1109/SIMSYM.2001.922134
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-04-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimization Time warp simulation Computational modeling Costs Runtime Analytical models Performance analysis Computer applications Concurrent computing Distributed computing
Content Type	Text
Resource Type	Article

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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
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