Embedding weak memory models within eager sequentialization
Embedding weak memory models within eager sequentialization
Sequentialization is one of the most promising approaches for the symbolic analysis of concurrent programs. However, existing sequentializations assume sequential consistency, which modern hardware architectures no longer guarantee. In this paper we describe an approach to embed weak memory models within eager sequentializations (a la Lal/Reps). Our approach is based on the separation of intra-thread computations from inter-thread communications by means of a shared memory abstraction (SMA). We give details of SMA implementations for the SC, TSO, and PSO memory models that are based on the idea of individual memory unwindings, and sketch an extension to the Power memory model. We use our approach to implement a new, efficient BMC-based bug finding tool for multi-threaded C programs under SC, TSO, or PSO based on these SMAs, and show experimentally that it is competitive to existing tools.
University of Southampton
Tomasco, Ermenegildo
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Nguyen Lam, Truc
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Fischer, Bernd
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La Torre, Salvatore
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Parlato, Gennaro
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October 2016
Tomasco, Ermenegildo
7b944585-0193-4dab-861b-8d5cdccf82cd
Nguyen Lam, Truc
0a373da7-0868-466d-a3b8-060868037acc
Fischer, Bernd
0c9575e6-d099-47f1-b3a2-2dbc93c53d18
La Torre, Salvatore
ec51ffc2-65d9-414e-9dd2-f5f342979c10
Parlato, Gennaro
c28428a0-d3f3-4551-a4b5-b79e410f4923
Tomasco, Ermenegildo, Nguyen Lam, Truc, Fischer, Bernd, La Torre, Salvatore and Parlato, Gennaro
(2016)
Embedding weak memory models within eager sequentialization
Southampton, GB.
University of Southampton
29pp.
Record type:
Monograph
(Project Report)
Abstract
Sequentialization is one of the most promising approaches for the symbolic analysis of concurrent programs. However, existing sequentializations assume sequential consistency, which modern hardware architectures no longer guarantee. In this paper we describe an approach to embed weak memory models within eager sequentializations (a la Lal/Reps). Our approach is based on the separation of intra-thread computations from inter-thread communications by means of a shared memory abstraction (SMA). We give details of SMA implementations for the SC, TSO, and PSO memory models that are based on the idea of individual memory unwindings, and sketch an extension to the Power memory model. We use our approach to implement a new, efficient BMC-based bug finding tool for multi-threaded C programs under SC, TSO, or PSO based on these SMAs, and show experimentally that it is competitive to existing tools.
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WMMEager.pdf
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Published date: October 2016
Organisations:
Electronic & Software Systems
Identifiers
Local EPrints ID: 402285
URI: http://eprints.soton.ac.uk/id/eprint/402285
PURE UUID: ba987c38-2533-44d1-acd8-37d82086bab8
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Date deposited: 03 Nov 2016 00:12
Last modified: 15 Mar 2024 03:12
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Contributors
Author:
Ermenegildo Tomasco
Author:
Truc Nguyen Lam
Author:
Bernd Fischer
Author:
Salvatore La Torre
Author:
Gennaro Parlato
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