Nested parallelization with OpenMP

被引：6

作者：

Mey, Dieter an ^{[1
]}

Sarholz, Samuel ^{[1
]}

Terboven, Christian ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Ctr Comp & Commun, Aachen, Germany

来源：

INTERNATIONAL JOURNAL OF PARALLEL PROGRAMMING | 2007年 / 35卷 / 05期

关键词：

OpenMP; nested parallelization; ccNUMA; shared memory parallelization;

D O I：

10.1007/s10766-007-0054-1

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

OpenMP is widely accepted as a de facto standard for shared memory parallel programming in Fortran, C and C++. Nested parallelization has been included in the first OpenMP specification, but it took a few years until the first commercially available compilers supported this optional part of the specification. We employed nested parallelization using OpenMP in three production codes: a C++ code for content-based image retrieval, a C++ code for the computation of critical points in multi-block CFD datasets, and a multi-block Navier-Stokes solver written in Fortran90. In this paper we discuss the opportunities as well as the deficiencies of the nested parallelization support in OpenMP.

引用

页码：459 / 476

页数：18

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