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International Journal of High Performance Computing Applications
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1094342009347501v1
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What's this?

Performance at Exascale

Bernd Mohr

JÜLICH SUPERCOMPUTING CENTRE, JÜLICH, GERMANY, B.MOHR{at}FZ-JUELICH.DE

Matthias S. Müller

CENTER FOR INFORMATION SERVICES AND HIGH PERFORMANCE COMPUTING, TECHNISCHE UNIVERSITÄT DRESDEN, GERMANY

Wolfgang E. Nagel

CENTER FOR INFORMATION SERVICES AND HIGH PERFORMANCE COMPUTING, TECHNISCHE UNIVERSITÄT DRESDEN, GERMANY

Exascale systems will consist of complex configurations with a huge number of potentially heterogeneous components. Deep software hierarchies of large, complex software components will be required to make use of such systems. While the software layers are designed to be transparent, they are typically not transparent with respect to performance. This performance non-transparency will result in escalation of unforeseen problems to higher layers, including the application. Altogether this will require an integrated and collaborative approach to handling performance issues and correctly detecting and analyzing performance problems. Contributions to this integrated approach are required from areas such as system design, operating software, and programming models, as well as performance modeling, monitoring, and analysis.

Key Words: performance analysis • performance modeling • extreme scalability • software hierarchies • challenges

This version was published on November 1, 2009

International Journal of High Performance Computing Applications, Vol. 23, No. 4, 355-356 (2009)
DOI: 10.1177/1094342009347501
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