A Debugger for Parallel Haskell Dialects

Authors:
Alberto Encina;Ismael Rodríguez;Fernando Rubio
Affiliations:
Facultad Informática, Universidad Complutense de Madrid, Madrid, Spain E-28040;Facultad Informática, Universidad Complutense de Madrid, Madrid, Spain E-28040;Facultad Informática, Universidad Complutense de Madrid, Madrid, Spain E-28040
Venue:
ICA3PP '08 Proceedings of the 8th international conference on Algorithms and Architectures for Parallel Processing
Year:
2008

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Abstract

Due to its high-level nature, parallel functional languages provide some advantages for the programmer. Unfortunately, the functional programming community has not paid much attention to some important practical problems, like debugging parallel programs. In this paper we introduce the first debugger that works with any parallel extension of the functional language Haskell, the de factostandard in the (lazy evaluation) functional programming community. The debugger is implemented as an independent library. Thus, it can be used with any Haskell compiler. Moreover, the debugger can be used to analyze how much speculative work has been done in any program.