A microbenchmark suite for OpenMP tasks

Authors:
J. Mark Bull;Fiona Reid;Nicola McDonnell
Affiliations:
EPCC, The King's Buildings, The University of Edinburgh, Edinburgh, Scotland, U.K.;EPCC, The King's Buildings, The University of Edinburgh, Edinburgh, Scotland, U.K.;ICHEC, Trinity Technology and Enterprise Campus, Dublin, Ireland
Venue:
IWOMP'12 Proceedings of the 8th international conference on OpenMP in a Heterogeneous World
Year:
2012

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Abstract

We present a set of extensions to an existing microbenchmark suite for OpenMP. The new benchmarks measure the overhead of the task construct introduced in the OpenMP 3.0 standard, and associated task synchronisation constructs. We present the results from a variety of compilers and hardware platforms, which demonstrate some significant differences in performance between different OpenMP implementations.