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Publications of Torsten Hoefler
Torsten Hoefler:
| | | Model-Driven, Performance-Centric HPC Software and System Design and Optimization
(Presentation - presented in Juelich, Germany, Apr. 2011, Talk at Juelich Supercomputing Center (JSC) )
AbstractThe design and optimization of HPC software, middleware, and computing
systems is a complex task. Two typical programming styles are (1) to
tune a code until it is "fast enough" and (2) to tune a code until it
is within "x%" of the peak performance. Method (1) is most common
because there often exists no clear definition of "peak performance".
Our goal is to integrate performance-centric design and analytic
performance modeling into the application development process from the
initial design phase through the application lifetime in order to
assess the possible peak performance and move towards method (2).
Analytic performance modeling can also be applied to optimize the
middleware and system layers holistically based in the set of
requirements of key applications. We will show manually developed
performance models for key applications that will run at the full scale
of the Blue Waters supercomputer system. We will discuss possibilities
to support the modeling process in the middleware and programming
model. We then outline several options to extend and adapt the
middleware and system layers and the programming model to the
application requirements based on analytic performance modeling.
Documents
download slides: 
| | | BibTeX | @misc{modeling-talk-juelich,
author={Torsten Hoefler},
title={{Model-Driven, Performance-Centric HPC Software and System Design and Optimization}},
year={2011},
month={Apr.},
location={Juelich, Germany},
note={Talk at Juelich Supercomputing Center (JSC)},
source={http://www.unixer.de/~htor/publications/},
} |
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