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An Early Performance Analysis of POWER7-IH HPC Systems
SESSION: Performance Evaluation and Analysis
EVENT TYPE: Paper
TIME: 2:00PM - 2:30PM
AUTHOR(S):Kevin Barker, Adolfy Hoisie, Darren Kerbyson
ABSTRACT: In this work we present a performance evaluation of the POWER7-IH processor and of integrated systems built from it. We describe the architecture of P7-IH with an emphasis on those characteristics that have a direct impact on the performance for large-scale HPC systems and applications. An important area of emphasis is the memory and communication subsystems and their impact on achievable application performance. The results from a set of micro-benchmarks are presented that include memory, communication and OS-noise characteristics. In addition the results from several production level applications are analyzed and their performance linked to the results of the micro-benchmarks through the use of accurate performance models. The models will also be employed in exploring the achievable performance of these applications on much larger systems.
Kevin Barker - Pacific Northwest National Laboratory
Adolfy Hoisie - Pacific Northwest National Laboratory
Darren Kerbyson - Pacific Northwest National Laboratory