Intel® Advisor Tutorial for Using the Automated Roofline Chart to Make Optimization Decisions

Intel® Advisor
Tutorial for Using the Automated Roofline Chart to Make Optimization DecisionsThis tutorial - and C++ sample application you can use to follow along - show how to use the
Intel® Advisor
automated
Roofline
chart to
visualize actual performance against hardware-imposed performance ceilings, as well as determine the main limiting factor (memory bandwidth or compute capacity), thereby providing an ideal roadmap of potential optimization steps.
Intel® Advisor
provides tools to help ensure your Fortran, C and C++ native/managed applications realize full performance potential on modern processors (for full list, see
release notes):
- Vectorization Advisoris a vectorization optimization tool that lets you identify high-impact, underoptimized loops, what is blocking vectorization, and where it is safe to force vectorization. It also provides code-specific how-can-I-fix-this-issue recommendations.
- Roofline Analysisvisualizes actual performance against hardware-imposed performance ceilings (rooflines). It provides insights into where the bottlenecks are, which loops are worth optimizing for performance, what are the likely causes of bottlenecks and what should be the next optimization steps.
- Threading Advisoris a fast-track threading design and prototyping tool that lets you analyze, design, tune, and check threading design options without disrupting your normal development.
- is a modeling tool that lets you to identify high-impact opportunities to offload to GPU as well as the areas that are not advantageous to offload.Offload Modeling
- Flow Graph Analyzeris a visual prototyping tool that lets you represent and analyze performance for applications that use theIntel® oneAPI Threading Building Blocksflow graph interfaces.
This document was last updated for the
Intel® Advisor
2020 product release. If you are using this tutorial with a higher version of
Intel Advisor
, you may see differences in workflow and analysis type names and user interface design.
About This Tutorial | This tutorial for shows how to:
This is an advanced
Vectorization Advisor tutorial. See
Intel® Advisor Tutorials for basic
Vectorization Advisor tutorials that include quick start and basic operations information.
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Estimated Duration
| 20 minutes.
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Learning Objectives | After you complete this tutorial, you should be able to:
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More Resources | See
Roofline Analysis in Intel® Advisor 2017 for a video that essentially covers the same content as this tutorial, but in more conceptual depth.
The concepts and procedures in this tutorial apply regardless of programming language; however, a similar tutorial using a sample application in another programming language may be available at
Intel® Software Documentation Library.
These sites also offer tutorials for other Intel products.
In addition, you can find more resources in:
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