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Author Machanick, Philip ♦ Goosen, Hendrik A. ♦ Holbrook, Hugh ♦ Cheriton, David R.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Abstract Synchronization is a significant cost in many parallel programs, and can be a major bottleneck if it is handled in a centralized fashion using traditional shared-memory constructs such as barriers. In a parallel time-stepped simulation, the use of global synchronization primitives limits scalability, increases the sensitivity to load imbalance, and reduces the potential for exploiting locality to improve cache behavior.This paper presents the results of an initial one-application study quantifying the costs and performance benefits of distributed, nearest neighbors synchronization. The application studied, MP3D, is a particle-based wind tunnel simulation. Our results for this one application on current shared-memory multiprocessors show a significant decrease in synchronization time using these techniques. We prototyped an application-independent library that implements distributed synchronization. The library allows a variety of parallel simulations to exploit these techniques without increasing the application programming beyond that of conventional approaches.
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1990-12-01
Publisher Place New York
Journal ACM SIGSIM Simulation Digest (SIML)
Volume Number 23
Issue Number 1
Page Count 4
Starting Page 159
Ending Page 162

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Source: ACM Digital Library