publication . Part of book or chapter of book . Article . 2016

Applying the Roofline Performance Model to the Intel Xeon Phi Knights Landing Processor

Doerfler, D; Deslippe, J; Williams, S; Oliker, L; Cook, B; Kurth, T; Lobet, M; Malas, T; Vay, JL; Vincenti, H;
Open Access
  • Published: 01 Jan 2016
  • Publisher: Springer International Publishing
  • Country: Mexico
Abstract
© Springer International Publishing AG 2016. The Roofline Performance Model is a visually intuitive method used to bound the sustained peak floating-point performance of any given arithmetic kernel on any given processor architecture. In the Roofline, performance is nominally measured in floating-point operations per second as a function of arithmetic intensity (operations per byte of data). In this study we determine the Roofline for the Intel Knights Landing (KNL) processor, determining the sustained peak memory bandwidth and floating-point performance for all levels of the memory hierarchy, in all the different KNL cluster modes.We then determine arithmetic i...
Subjects
free text keywords: Artificial Intelligence & Image Processing, Operating system, computer.software_genre, computer, Supercomputer, Xeon, Memory bandwidth, Microarchitecture, Memory hierarchy, Computer science, Loop nest optimization, Byte, Xeon Phi, Parallel computing
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