NDLI: Conflict types and probabilities in stochastic TM-programs

Content Provider	IEEE Xplore Digital Library
Author	Popovic, M. Basicevic, I.
Copyright Year	2014
Description	Author affiliation: Fac. of Tech. Sci., Univ. of Novi Sad, Novi Sad, Serbia (Popovic, M.; Basicevic, I.)
Abstract	Transactional Memory (TM) is an attractive concurrency control mechanism that should deliver much better performance than locks in case when transaction conflicts are rare. But, if the probability of conflicts is high, TM program performance may be very poor. Therefore, when engineering mission critical systems, we need to be able to calculate conflict probabilities. In this paper we study a class of stochastic TM programs for processing groups of transactions on a set of shared t-variables, e.g. bank accounts. Individual transactions are selecting variables they are operating on uniformly at random. We identify and define various types of conflicts among transactions that may arise in such circumstances. We also show how to calculate probabilities of various types of conflicts on some simple examples of groups of transactions sharing one or two t-variables. Our work is still in progress, but the results shown here are affirmative for the approach we use, and they stimulate further research towards more general analysis of this class of TM programs.
Starting Page	19
Ending Page	22
File Size	134868
Page Count	4
File Format	PDF
e-ISBN	9781479948086
DOI	10.1109/ICIST.2014.6920322
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-04-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer languages Conflict types Parallel programming System performance Transactional Memory Semantics Parallel processing Probability Writing Parallelism Parallel Programming Probabilities
Content Type	Text
Resource Type	Article

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