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Preventing versus Curing: Avoiding Conflicts in Transactional Memories

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Cooperative Update Exchange in the Youtopia System

Christoph Koch

Youtopia is a platform for collaborative management and integration of relational data. At the heart of Youtopia is an update exchange abstraction: changes to the data propagate through the system to satisfy user-specified mappings. We present a novel chan ...

2009

Transactions in the Jungle

Rachid Guerraoui, Michal Kapalka, Vasu Singh

Transactional memory (TM) has shown potential to simplify the task of writing concurrent programs. However, the semantics of interactions between transactions managed by a TM and non-transactional operations, while widely studied, lacks a clear formal spec ...

2009

Predicting User-Cell Association in Cellular Networks from Tracked Data

Jean-Yves Le Boudec

We consider the problem of predicting user location in the form of user-cell association in a cellular wireless network. This is motivated by resource optimization, for example switching base transceiver stations on or off to save on network energy consump ...

Springer Verlag2009

Dynamic Prediction based Scheduling for TM

Anmol Tomar

Transactional memory (TM) provides an intuitive and simple way of writing parallel programs. TMs execute parallel programs speculatively and deliver better performance than conventional lock based parallel programs. However, in certain scenarios when an ap ...

2008

On the Correctness of Transactional Memory

Rachid Guerraoui, Michal Kapalka

Transactional memory (TM) is perceived as an appealing alternative to critical sections for general purpose concurrent programming. Despite the large amount of recent work on TM implementations, however, very little effort has been devoted to precisely def ...

2008

Completeness and Nondeterminism in Model Checking Transactional Memories

Rachid Guerraoui, Vasu Singh

Software transactional memory (STM) offers a disciplined concurrent programming model for exploiting the parallelism of modern processor architectures. This paper presents the first \emph{deterministic} specification automata for strict serializability and ...

Springer2008

Completeness and Nondeterminism in Model Checking Transactional Memories

Rachid Guerraoui, Vasu Singh

Abstract. Software transactional memory (STM) offers a disciplined concurrent programming model for exploiting the parallelism of modern processor architectures. This paper presents the first deterministic specification automata for strict serializability ...

2008

Opacity: A Correctness Condition for Transactional Memory

Rachid Guerraoui, Michal Kapalka

Transactional memory is perceived as an appealing alternative to critical sections for general purpose concurrent programming. Despite the large amount of recent work on transactional memory implementations, however, its actual specification has never been ...

2007

Combining Tasking and Transactions, Part II: Open Multithreaded Transactions

Jörg Kienzle

This position paper is a follow-up paper of the one presented at the last IRTAW workshop. The paper describes a model for providing transaction support for concurrent programming languages such as Ada 95. In order to achieve smooth integration, the use of ...

ACM Press2001

Exception Handling in Open Multithreaded Transactions

Jörg Kienzle

This paper describes a model for providing transaction support for object-oriented concurrent programming languages. In order to achieve seamless integration, the use of the concurrency features provided by the programming language should not be restricted ...

2000