Active Harmony: Towards Automated Performance Tuning
Active Harmony: Towards Automated Performance Tuning
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Date
2002-08-01
Authors
Tapus, Cristian
Chung, I-Hsin
Hollingsworth, Jeffrey K.
Advisor
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Abstract
In this paper we present the Active Harmony automated runtime tuning
system. We describe the interface used by programs to make applications
tunable. We present the Library Specification Layer which helps program
library developers expose multiple variations of the same API using
different algorithms. The Library Specification Language helps to select
the most appropriate program library to tune the overall performance. We
also present the optimization algorithm that we used to adjust
parameters in the application and the libraries. Finally, we present
results that show how the system is able to tune several real
applications. The automated tuning system is able to tune the
application parameters to within a few percent of the best value after
evaluating only 11 configurations out of over 1,700 possible
combinations.
Also UMIACS-TR-2002-54