Roofline Analysis Part 2 – Fast Insights to Optimized Vectorization & Memory

Developers often struggle to understand the trade-offs between compute utilization and memory bottlenecks. A good way to unravel the knot is by using the Roofline model, analysis that offers an intuitive representation of how best to address performance in relation to hardware limitations.

But … interpretation of Roofline results can require a deep knowledge of the application to pinpoint the source of memory bottlenecks.

In this second installation of our 2-part Roofline series (watch Part 1 here), Technical Consulting Engineer Cedric Andreolli discusses this issue in a deeper exploration of Intel® Advisor’s Integrated Roofline Analysis feature, which uses a cache simulator to understand the behavior of each cache level.

Watch now to:

  • Get an overview of the Integrated Roofline Analysis feature, including how it provides in-depth information about the memory hierarchy (L1, L2, L3, or DRAM), identifying the specific location of bottlenecks
  • Identify how much more memory bandwidth each hierarchy level is achieving versus the maximum potential at each level
  • Explore a real-world example of the optimization process

Get the software

  • Download Intel® Advisor as part of the Intel® oneAPI Base Toolkit, a core set of tools and libraries for creating data-centric, cross-architecture applications.
  • Sign up for an Intel® DevCloud for oneAPI account—a free development sandbox with access to the latest Intel® hardware and oneAPI software.
Cedric Andreolli, Technical Consulting Engineer, Intel Corporation

Cedric is a Technical Consulting Engineer responsible for supporting Intel® Software Development Tools, with special focus on Intel® Compilers and Intel® Advisor, particularly in the realm of high-performance computing. In addition, he has extensive experience in Android* development with applications for augmented reality via both OpenGL* and Radiance* lighting simulation tool.

Cedric holds a Bachelor’s in Computer Science from University of Rennes 1 in France. In his spare time, he enjoys playing guitar in rock bands, skiing, and playing ice hockey and football.

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