Intel® Advisor User Guide

ID 766448
Date 11/07/2023

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Document Table of Contents

Window: Offload Modeling Report - Accelerated Regions

Use the Accelerated Regions window to view detailed information about offloaded and non-offloaded loops/functions, view source code for your loops/functions.

Review the controls available in the main report of the Offload Modeling perspective of the Intel® Advisor. In the Accelerated Regions and Summary reports, you can drag-and-drop, close/open, collapse/expand panes to change the report layout.

  • Switch between perspectives using a drop-down menu in the top left corner.
  • Switch between Summary, Accelerated Regions, and Source View.

Review the summary offload characteristics for your application to decide if the application is recommended for offloading. The pane highlights total speedup, number of loops and functions offloaded, and a fraction of code accelerated.

Select code regions to show in the report based on offload type:

  • Show all code regions in your code.
  • Show only code regions recommended for offloading.
  • Show only code regions not recommended for offloading.

  • Expand/collapse a top slider with per-program recommendations using the button.

    You can expand or collapse each recommendation.

  • Expand/collapse a top slider with collection event log using the button. The top slider enables you to view the following:
    • Main data collection events and issues in the Featured Events pane.

      Expand/collapse each featured event in the log to view details.

    • Application Output
    • Full execution log of your application in the Collection Log pane.

    Click the button to collapse the top slider or drag it to maximize the event log.

    Collection event log top slider appears automatically when you run a perspective. You can track collection using the green progress bar at the top and view collection events online.
  • Create a snapshot for the current project results using the button. For details, see Create a Read-only Result Snapshot.
  • Click a + button to open previously closed panes.

Review the detailed information about your application performance measured on a host platform and its performance modeled on a target platform. For details about metrics reported, see Accelerator Metrics.

Depending on a perspective configuration, you might see different metrics reported and some metrics might be not accurate. Refer to the following topics for interpretation details:

Switch between the Data Transfer Estimations tab and Details tab.

In the Data Transfer Estimations tab, examine details about estimated data transfers in a loop and memory objects tracked and review data transfer recommendations. Select a loop in the Code Regions table to see the data transfer estimations for it. Click a recommendation to expand it and view hints for offloading your code to another accelerator, code samples, and links to useful resources.

For details about how to read this pane, see Examine Data Transfers for Modeled Regions.

You need to enable data transfer analysis before running the perspective to see metrics in this pane,

In the Details tab, view performance metrics for a selected function/loop.

Advanced view pane enables you to:

  • Examine the source code for selected functions/loops in the Source tab. Select a loop in the Code Regions table to focus on the corresponding part of the source code.

    Right-click a code line and click View Source to open the source view. Double click a code line in the source view to open it in code editor.

  • View the execution details for a selected function/loop in the call stack using the Top-Down tab.
  • Examine recommendations that provide guidance and code samples to resolve the issues found by Intel Advisor using the Recommendations tab. Use the drop-down to expand code snippets if you need them.

For details, see Examine Regions Recommended for Offloading