Abstract
With energy-efficient architectures, including accelerators and many-core processors, gaining traction, application developers face the challenge of optimizing their applications for multiple hardware features including many-core parallelism, wide processing vector-units and on-chip high-bandwidth memory. In this paper, we discuss the development and utilization of a new application performance tool based on an extension of the classical roofline-model for simultaneously profiling multiple levels in the cache-memory hierarchy. This tool presents a powerful visual aid for the developer and can be used to frame the many-dimensional optimization problem in a tractable way. We show case studies of real scientific applications that have gained insights from the Integrated Roofline Model.
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Koskela, T. et al. (2018). A Novel Multi-level Integrated Roofline Model Approach for Performance Characterization. In: Yokota, R., Weiland, M., Keyes, D., Trinitis, C. (eds) High Performance Computing. ISC High Performance 2018. Lecture Notes in Computer Science(), vol 10876. Springer, Cham. https://doi.org/10.1007/978-3-319-92040-5_12
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