SCHEDULE: NOV 16-22, 2013
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Advanced OpenMP: Performance and 4.0 Features
SESSION: Advanced OpenMP: Performance and 4.0 Features
EVENT TYPE: Tutorials
TIME: 8:30AM - 5:00PM
Presenter(s):Christian Terboven, Michael Klemm, Ruud van der Pas, Bronis R. de Supinski
ROOM:406
ABSTRACT:
With the increasing prevalence of multicore processors, shared-memory programming models are essential. OpenMP is a popular, portable, widely supported and easy-to-use shared-memory model. Developers usually find OpenMP easy to learn. However, they are often disappointed with the performance and scalability of the resulting code. This disappointment stems not from shortcomings of OpenMP but rather with the lack of depth with which it is employed. Our Advanced OpenMP Programming tutorial addresses this critical need by exploring the implications of possible OpenMP parallelization strategies, both in terms of correctness and performance.
While we quickly review the basics of OpenMP programming, we assume attendees understand basic parallelization concepts and will easily grasp those basics. We focus on performance aspects, such as data and thread locality on NUMA architectures, false sharing, and exploitation of vector units. We discuss language features in-depth, with emphasis on features recently added to OpenMP such as tasking and cancellation. We close with an overview of the new OpenMP 4.0 directives for attached compute accelerators.
Chair/Presenter Details:
Christian Terboven - RWTH Aachen University
Michael Klemm - Intel Corporation
Ruud van der Pas - Oracle
Bronis R. de Supinski - Lawrence Livermore National Laboratory
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