Design and Implementation of OpenMP Tasks in the OMPi Compiler

Authors:
Spiros N. Agathos;Panagiotis E. Hadjidoukas;Vassilios V. Dimakopoulos
Affiliations:
-;-;-
Venue:
PCI '11 Proceedings of the 2011 15th Panhellenic Conference on Informatics
Year:
2011

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Abstract

In this paper we present the design and implementation of tasks in the context of the \ompi\ \openmp\ compiler. The modular architecture of \ompi's runtime system allows a wide range of choices for experimenting with \openmp\ structures. We present two fully-fledged implementations of tasks: one based on \posix\ threads, with the addition of a tasking layer, and another one based on an almost unmodified user-level threading library. Both allow the tuning of their scheduling parameters so as to optimize memory consumption and execution times, resulting in highly competitive performance.