The Community for Technology Leaders
Parallel and Distributed Processing Symposium, International (2008)
Miami, FL, USA
Apr. 14, 2008 to Apr. 18, 2008
ISBN: 978-1-4244-1693-6
pp: 1-8
Arch Robison , Intel Corporation, USA
Michael Voss , Intel Corporation, USA
Alexey Kukanov , Intel Corporation, USA
ABSTRACT
Intel® Threading Building Blocks (Intel® TBB) is a C++ library for parallel programming. Its templates for generic parallel loops are built upon nested parallelism and a work-stealing scheduler. This paper discusses optimizations where the high-level algorithm inspects or biases stealing. Two optimizations are discussed in detail. The first dynamically optimizes grain size based on observed stealing. The second improves prior work that exploits cache locality by biased stealing. This paper shows that in a task stealing environment, deferring task spawning can improve performance in some contexts. Performance results for simple kernels are presented.
INDEX TERMS
CITATION
Arch Robison, Michael Voss, Alexey Kukanov, "Optimization via Reflection on Work Stealing in TBB", Parallel and Distributed Processing Symposium, International, vol. 00, no. , pp. 1-8, 2008, doi:10.1109/IPDPS.2008.4536188
93 ms
(Ver 3.3 (11022016))