JUNE 18–22, 2017

Presentation Details

Name: OpenMP - Taking Good Care of the Node in Exascale?
Time: Monday, June 19, 2017
04:40 pm - 05:00 pm
Room:   Panorama 2
Messe Frankfurt
Speaker:   Christian Terboven, RWTH Aachen University
Abstract:   Shared memory parallel programming, for instance by inserting OpenMP pragmas into program code, might look simple at first sight. However, the full performance of current HPC architectures can only be reached if everything is done right. Within the node, parallelism has to be exploited from multiple sockets and cores, vector units, acceleration units, and the memory hierarchy has to be dealt with. In this talk, we will examine how OpenMP has been extended to support all of this, and where OpenMP is particularly strong by being based on Pragmas and a de-facto standard and where it disappoints programmers. We will also review the current topics under development in the OpenMP Language Committee heading towards OpenMP 5.0, with two technical reports already released since 4.5.