Architectural Support for Reliable Parallel Computing
Prvulovic, Milos
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Permalink
https://hdl.handle.net/2142/81628
Description
Title
Architectural Support for Reliable Parallel Computing
Author(s)
Prvulovic, Milos
Issue Date
2003
Doctoral Committee Chair(s)
Torrellas, Josep
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Computer Science
Language
eng
Abstract
ReEnact improves reliability of multi-threaded software by providing an effective data-race debugging support. ReEnact extends thread-level speculation (TLS) mechanisms to roll back the buggy execution and repeat it as many times as necessary until the bug is fully characterized. These incremental re-executions are deterministic even in multi-threaded codes. The specific implementation of ReEnact detailed and evaluated in this thesis targets data-races in multi-threaded programs. Our experiments using SPLASH-2 applications show that ReEnact is very effective at detecting and characterizing data-race bugs automatically on the fly. This we consider the most valuable contribution of ReEnact. Moreover, in many cases, ReEnact also repairs the bug. Last but not least, ReEnact is fully compatible with production runs: the slowdown of race-free execution is on average only 5.8%.
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