Bsp2omp: A Compiler For Translating Bsp Programs To Openmp

Marowka, Ami

doi:10.1080/17445760902719927

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…This programming paradigm uses custom built data redistribution libraries, making large scale codes easier to write and maintain [2]- [4]. At the same time, this programming model allows for the analysis of application performance using the Bulk Synchronous Parallel (BSP) machine model introduced by Valiant [5], or the Decomposable BSP (DBSP) machine extension that models submachine locality [6], [7].…”

Section: A Cost Modelmentioning

confidence: 99%

Estimating Application Hierarchical Bandwidth Requirements Using BSP Family Models

Soviani

Singh

2012

2012 IEEE 26th International Parallel and Distributed Processing Symposium Workshops &Amp; PhD Forum

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There has been a vast amount of work to develop programming models that provide good performance across machine architectures, are easy to use, and have predictable performance. Similarly, the design and optimization of architectures to achieve optimal performance for an application class remains a challenging task. Accurate cost modeling is essential for both application development and system design.Many scientific computing codes are developed by using libraries that provide custom-built collective communication primitives. For example, the family of Bulk Synchronous Parallel (BSP) machine models provides suitable tools for analyzing such problems. However, modeling the effect of bandwidth limitations for globally unbalanced communication and estimating the hierarchical bandwidth used by applications remain key challenges.We present a hierarchical bandwidth machine model (alphaDBSP) that naturally extends the Decomposable BSP (DBSP) model by associating a bandwidth growth factor alpha to each message pattern. Algorithms executed on alphaDBSP have a runtime that is at least as good as DBSP. Hence, there are globally unbalanced problems for which alphaDBSP analysis is simpler or more accurate 1 . We present three scientific computing kernels that illustrate the differences between alphaDBSP and DBSP analysis.Similar to the BSP family models, alphaDBSP predicts collective communication execution time for a given machine. Additionally, alphaDBSP estimates the hierarchical bandwidth required by a given application. System architects may use this estimation to design machines that avoid bandwidth bottlenecks for their target application class.

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Section: A Cost Modelmentioning

confidence: 99%

Estimating Application Hierarchical Bandwidth Requirements Using BSP Family Models

Soviani

Singh

2012

2012 IEEE 26th International Parallel and Distributed Processing Symposium Workshops &Amp; PhD Forum

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Mechanisms that separate algorithms from implementations for parallel patterns

Krieger

Stone

Strout

2010

Proceedings of the 2010 Workshop on Parallel Programming Patterns

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Parallel programming implementation details often obfuscate the original algorithm and make later algorithm maintenance difficult. Although parallel programming patterns help guide the structured development of parallel programs, they do not necessarily avoid the code obfuscation problem. In this paper, we observe how emerging and existing programming models realized as programming languages, preprocessor directives, and/or libraries are able to support the Implementation Strategy Patterns that were proposed as part of the Our Pattern Language. We posit that these emerging programming models are in some cases able to avoid code obfuscation through features that prevent tangling of algorithm and implementation details for parallelization and performance optimizations. We qualitatively evaluate these features in terms of how much they prevent tangling and how well they provide programmercontrol over implementation details. We conclude with remarks on potential research directions for studying how to produce efficient and maintainable parallel programs by separating algorithm from implementation.

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Bsp2omp: A Compiler For Translating Bsp Programs To Openmp

Cited by 2 publications

References 26 publications

Estimating Application Hierarchical Bandwidth Requirements Using BSP Family Models

Estimating Application Hierarchical Bandwidth Requirements Using BSP Family Models

Mechanisms that separate algorithms from implementations for parallel patterns

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