NDLI: Language based state saving extensions for optimistic parallel simulation

Content Provider	IEEE Xplore Digital Library
Author	Gomes, F. Cleary, J. Unger, B.
Copyright Year	1996
Description	Author affiliation: The University of Calgary (Gomes, F.)
Abstract	One of the greatest challenges in making optimistic synchronization techniques such as Time Warp practical tools is making state saving efficient and easy to use. State saving is necessary so that when optimistic execution is found to be out of order, rollback can be used to recover an earlier execution state. Previous work has shown that the most robust and efficient technique for saving state is to incrementally save copies of small parts of the state at the point that they are modified. Unfortunately, this requires sig nificant programmer intervention to insert additional code. In this paper, C++ language extensions for trans parent incremental state saving are presented. Operator overloading and type parameterization are used to incrementally save basic data types. Building on this, two new type-specifiers, "recover" and "nourecover" are described. They allow a single declaration to specify, for example, that all the member variables of a class are to be state saved, and for all the resulting state saving calls to be automatically generated. Issues, including how these specifiers interact with class inheritance and function declarations are examined and solved.
Starting Page	794
Ending Page	800
File Size	621346
Page Count	7
File Format	PDF
ISBN	0780333837
DOI	10.1109/WSC.1996.873367
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-12-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Winter Simulation Conf. Board of Dir.
Subject Keyword	Cascading style sheets Computational modeling Programming profession Costs Computer simulation Computer science Robustness Discrete event simulation Frequency synchronization Frequency estimation
Content Type	Text
Resource Type	Article

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