Intel® Advisor Help

Run Offload Modeling Perspective from GUI

Prerequisites:

To configure and run the Offload Modeling perspective from the GUI:

  1. Configure the perspective and set analysis properties, depending on desired results:

    • Select a collection accuracy level with analysis properties preset for a specific result:

      • Low: Model your application performance for a target device and get the basic information about potential speed-up and performance.

      • Medium: Model your application performance and data transfers between host and target devices.

      • High: Model your application performance and data transfers and analyze dependencies to improve offload modeling accuracy.

    • Select the analyses and properties manually to adjust the perspective flow to your needs. The accuracy level is set to Custom.

    The higher accuracy value you choose, the higher runtime overhead is added to your application. The Overhead indicator shows the overhead for the selected configuration. For the Custom accuracy, the overhead is calculated automatically for the selected analyses and properties.

    By default, accuracy is set to Low.

  2. If you want to check the offload profitability for specific loops/functions instead of analyzing the whole application:
    1. Go to Project Properties > Performance Modeling.
    2. Enter the --select=[(<loop-ID>|<file-name>:<line>,<loop-ID>|<file-name>:<line>,..] in the Other parameters field.
  3. Select a target platform from the drop-down.
  4. Click the button to run the perspective.

    While the perspective is running, you can do the following in the Analysis Workflow tab:

    • Control the perspective execution:
      • Stop data collection and see the already collected data: Click the button.
      • Pause data collection: Click the button.
      • Cancel data collection and discard the collected data: Click the button.
    • Expand an analysis with to control the analysis execution:
      • Pause the analysis: Click the button.
      • Stop the currently running analysis and start the next analysis selected: Click the button.
      • Interrupt execution of all selected analyses and see the already collected data: Click the button.

    After you run the Offload Modeling perspective, the collected Survey data becomes available for all other perspectives. If you switch to another perspective, you can skip the Survey step and run only perspective-specific analyses.

To run the Offload Modeling perspective with the Medium accuracy from the command line interface:

  1. Run the Survey analysis: 

    advisor --collect=survey --project-dir=./advi --stackwalk-mode=online --static-instruction-mix -- myApplication

  2. Collect Trip Counts and FLOP data: 

    advisor --collect=tripcounts --project-dir=./advi --flop --stacks --enable-cache-simulation --data-transfer=light --target-device=gen11_icl -- myApplication

  3. Run Performance Modeling: 

    advisor --collect=projection --project-dir=./advi --no-assume-dependencies

Note

To generate command lines for selected perspective configuration, click the Command Line button.

Once the Offload Modeling perspective collects data, the report opens showing a Summary tab with performance metrics estimated for the selected target platform, such as estimated speedup, potential performance bottlenecks, and top offloaded loops. Depending on the selected accuracy level and perspective properties, continue to investigate the results: