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Remote Participation
Revisiting a Metric for Performance Portability
Event Type
Online Only
Heterogeneous Systems
Parallel Programming Languages and Models
Productivity Tools
Software Engineering
Registration Categories
TimeSunday, 14 November 202110:30am - 11am CST
DescriptionOur previously proposed metric for performance portability has been successful in spurring the development of tools and encouraging fair and meaningful evaluations of applications and programming frameworks. However, several practitioners have critiqued its formulation and questioned its interpretation.

In this presentation, we revisit and clarify our criteria for a useful performance portability metric, and present a derivation of our metric from first principles to inform its interpretation in a variety of scenarios. We explore the implications of this derivation for practitioners, providing clear guidance for when it is appropriate to use our metric and when alternative metrics are more suitable.
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