Roofline Resources for Intel® Advisor Users

Intel® Advisor provides design tools to help ensure your Fortran, C and C++ native/managed applications realize full performance potential on modern processors: Vectorization Advisor, Roofline, Threading Advisor, Offload Advisor, and Flow Graph Analyzer.

Roofline analysis visualizes 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. 

Get Started with Roofline

Learn what the Roofline is and how it works using the following resources:

Start taking advantage of the power and flexibility of the Roofline Analysis of the Intel Advisor using the following resources:

Explore More Roofline Capabilities

Intel Advisor provides several advance features of the Roofline to help you 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.

Start with the User Guide, which provides an overview of all Roofline analysis capabilities available in the Intel Advisor:

To explore a specific Roofline feature, see a corresponding page:

  • Use Roofline with Callstacks to get total data metrics about your applications and investigate the source of loop/function in the entire call chain.
  • Use Integer Roofline to analyze applications with integers and generate roofs with respect to integer-based scalar and vector computation peaks.
  • Use Memory-Level Roofline to analyze integrated traffic data for your application an all memory levels.

Roofline Use Cases

Intel Advisor Cookbook contains step-by-step instructions to guide you through specific Roofline use-cases:

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Product and Performance Information

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Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

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