Efficiently Exploring Architectural Design Spaces via Predictive Modeling

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Provided by: Association for Computing Machinery
Topic: Hardware
Format: PDF
Architects use cycle-by-cycle simulation to evaluate design choices and understand tradeoffs and interactions among design parameters. Efficiently exploring exponential-size design spaces with many interacting parameters remains an open problem: the sheer number of experiments renders detailed simulation intractable. The authors attack this problem via an automated approach that builds accurate, confident predictive design-space models. They simulate sampled points, using the results to teach their models the function describing relationships among design parameters. The models produce highly accurate performance estimates for other points in the space, can be queried to predict performance impacts of architectural changes, and are very fast compared to simulation, enabling efficient discovery of tradeoffs among parameters in different regions.
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