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Roofline model. The Roofline model is an intuitive visual performance model used to provide performance estimates of a given compute kernel or application running on multi-core, many-core, or accelerator processor architectures, by showing inherent hardware limitations, and potential benefit and priority of optimizations. By combining locality, bandwidth, and different parallelization paradigms into a single performance figure, the model can be an effective alternative to assess the quality of attained performa
Roofline model - Related terms and performance metrics. 1  The work W {\displaystyle W} denotes the number of operations performed by a given kernel or application. [1] 2  Note that the work W {\displaystyle W} is a property of the given kernel or application and thus depend just partially on the platform characteristics.