NanosCompiler:在OpenMP中支持灵活的多级并行开发

Concurr. Pract. Exp. Pub Date : 2000-10-01 DOI:10.1002/1096-9128(200010)12:12%3C1205::AID-CPE524%3E3.0.CO;2-2

Marc González, E. Ayguadé, X. Martorell, Jesús Labarta, N. Navarro, J. Oliver

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引用次数: 33

摘要

本文描述了NanosCompiler对OpenMP中嵌套并行的支持。NanosCompiler是一个源代码到源代码的并行化编译器，它围绕一个分层的内部程序表示实现，该程序表示捕获用户(通过OpenMP指令和扩展)表达的并行性，以及编译器通过详细分析数据和控制依赖关系自动发现的并行性。编译器最终负责将工作封装到线程中，建立它们的执行优先级，并选择并行执行它们的机制。NanosCompiler允许对嵌套并行结构使用不同的工作分配策略进行实验。提出了一些OpenMP扩展，以允许规范线程组和它们之间的优先级关系。版权所有©2000约翰威利父子有限公司

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NanosCompiler: supporting flexible multilevel parallelism exploitation in OpenMP

This paper describes the support provided by the NanosCompiler to nested parallelism in OpenMP. The NanosCompiler is a source-to-source parallelizing compiler implemented around a hierarchical internal program representation that captures the parallelism expressed by the user (through OpenMP directives and extensions) and the parallelism automatically discovered by the compiler through a detailed analysis of data and control dependences. The compiler is finally responsible for encapsulating work into threads, establishing their execution precedences and selecting the mechanisms to execute them in parallel. The NanosCompiler enables the experimentation with different work allocation strategies for nested parallel constructs. Some OpenMP extensions are proposed to allow the specification of thread groups and precedence relations among them. Copyright © 2000 John Wiley & Sons, Ltd.

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Concurr. Pract. Exp.

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