NDLI: A hypercube algorithm for GVT computation and its application in optimistic parallel simulation

Content Provider	IEEE Xplore Digital Library
Author	Das, S.K. Sarkar, F.
Copyright Year	1995
Description	Author affiliation: Dept. of Comput. Sci., North Texas Univ., Denton, TX, USA (Das, S.K.; Sarkar, F.)
Abstract	We present an algorithm for computing the global virtual time (GVT) in an optimistic parallel discrete event simulation, on the distributed memory hypercube architecture. Our algorithm uses only 3N messages and runs in O(log N) time where N is the number of logical processors (LP's) representing components of the simulation system. It is based on the construction of a spanning binomial tree in the hypercube. In most simulation systems, there is an LP designated for GVT computation, called the GVT manager. Failure of the physical processor running this LP causes the simulation process to stop, and in such a case reorganization of LPs is necessary so that another logical processor take the roll of the GVT manager. In our algorithm, any LP in the system can elect itself to be the GVT manager and hence such reorganization is not necessary. We show how our algorithm can be used for memory management and hierarchical load balancing in a hypercube machine, and suggest a new technique to handle transient messages.
Starting Page	51
Ending Page	60
File Size	1133938
Page Count	10
File Format	PDF
ISBN	0818670916
DOI	10.1109/SIMSYM.1995.393594
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-04-09
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hypercubes Computer applications Computational modeling Load management Concurrent computing Distributed computing Discrete event simulation Computer architecture Memory architecture Memory management
Content Type	Text
Resource Type	Article

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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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