Design and Implementation of OpenMP Tasks in the OMPi Compiler

Author

Agathos, Spiros N. ; Hadjidoukas, Panagiotis E. ; Dimakopoulos, Vassilios V.

Author_Institution

Dept. of Comput. Sci., Univ. of loannina, Ioannina, Greece

fYear

2011

fDate

Sept. 30 2011-Oct. 2 2011

Firstpage

265

Lastpage

269

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.

Keywords

application program interfaces; program compilers; OMPI runtime system; OMPi compiler; OpenMP tasks; POSIX threads; execution time optimization; memory consumption optimization; scheduling parameter tuning; tasking layer; user-level threading library; Benchmark testing; Libraries; Message systems; Optimization; Parallel processing; Radiation detectors; Runtime; OpenMP; compiler transformations; runtime system; task parallelism; threads;

fLanguage

English

Publisher

ieee

Conference_Titel

Informatics (PCI), 2011 15th Panhellenic Conference on

Conference_Location

Kastonia

Print_ISBN

978-1-61284-962-1

Type

conf

DOI

10.1109/PCI.2011.34

Filename

6065099