Fachgebiet Entwurf Mikroelektronischer Systeme (EMS)

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Estimation of the Roofline Model with gem5

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In this work, the roofline model shall be integrated in gem5. The gem5 simulator is a modular platform for computer-system architecture research, encompassing system-level architecture as well as processor microarchitecture. The work is divided in three parts. First the roofline for a configured gem5 architecture shall be generated automatically as a graphical output. Second, if an application is executed on gem5, it shall be drawn below the roofline. Finally, some analysis with specific benchmarks shall be conducted.


C++, SystemC and Virtual Prototyping Lecture


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 performance instead of using simple percent-of-peak estimates, as it provides insights on both the implementation and inherent performance limitations. (Source: https://en.wikipedia.org/wiki/Roofline_model)



Matthias Jung

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