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Publications of Torsten Hoefler
G. Bauer, S. Gottlieb and Torsten Hoefler:
| | | Performance Modeling and Comparative Analysis
of the MILC Lattice QCD Application su3 rmd
(In Proceedings of the 2012 12th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (ccgrid 2012), presented in Ottawa, Canada, pages 652--659, IEEE Computer Society, ISBN: 978-0-7695-4691-9, May 2012)
AbstractApplication performance modeling is an essential
part of application and system development as HPC moves
into the petascale and prepares for the exascale. However,
performance modeling of parallel systems is a difficult task
due to natural variations in measurements and noise effects.
In this paper, we give a detailed example for a semi-empirical
performance-modeling method applied to the ubiquitous HPC
application su3 rmd from the lattice Quantum Chromodynamics
field on a variety of parallel computing platforms. We apply
statistical techniques that are well known in natural sciences to
model the variance in the input system. Using a simple analytical
model to capture the main characteristics of the code, such as
numbers and sizes of passed messages and invocation counts of
serial code blocks in conjunction with statistically sound curvefitting methods, we develop an accurate performance model and
use it to characterize application performance on various target
architectures. Our fitting techniques allow us to characterize
the variance of different performance observations on a given
system and show the influence of noise from different sources.
The techniques we developed can be applied to a wide class of
bulk-synchronous applications. With this detailed example, we
aim to motivate the scientific computing community to develop
and use similar performance models for software development
and maintenance.
Documentsdownload article: 
| | | BibTeX | @inproceedings{milc-modeling,
author={G. Bauer and S. Gottlieb and Torsten Hoefler},
title={{Performance Modeling and Comparative Analysis
of the MILC Lattice QCD Application su3 rmd}},
year={2012},
month={May},
pages={652--659},
booktitle={Proceedings of the 2012 12th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (ccgrid 2012)},
location={Ottawa, Canada},
publisher={IEEE Computer Society},
isbn={978-0-7695-4691-9},
source={http://www.unixer.de/~htor/publications/},
} |
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