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Colloquium - Moss

ECCR 265

Learning to Schedule Straight-Line Code
Department of Computer Science, University of Massachusetts

Execution speed of programs on modern computer architectures is sensitive, by a factor of two or more, to the order in which instructions are presented to the processor. To realize potential execution efficiency, it is now customary for an optimizing compiler to employ a heuristic algorithm for instruction scheduling.

These algorithms are painstakingly hand-crafted, which is expensive and time-consuming. We show how to cast the instruction scheduling problem as a learning task, so that one obtains the heuristic scheduling algorithm automatically. Our focus is the narrower problem of scheduling straight-line code, also known as a basic block of instructions. Our empirical results show that just a few features are adequate for quite good performance at this task for a real modern processor, and that any of several supervised learning methods perform nearly optimally with respect to the features used.

Refreshments will be served immediately before the talk at 3:30pm.
Hosted by Benjamin Zorn.

The Department holds colloquia throughout the Fall and Spring semesters. These colloquia, open to the public, are typically held on Thursday afternoons, but sometimes occur at other times as well. If you would like to receive email notification of upcoming colloquia, subscribe to our Colloquia Mailing List. If you would like to schedule a colloquium, see Colloquium Scheduling.

Sign language interpreters are available upon request. Please contact Stephanie Morris at least five days prior to the colloquium.

See also:
Department of Computer Science
College of Engineering and Applied Science
University of Colorado Boulder
Boulder, CO 80309-0430 USA
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