User Guide

  • 2022.2
  • 08/08/2022
  • Public Content

OTF2 Format Support

This is a preview feature. A preview feature may be changed or removed in a future production release.
Apart from the native STF format, Intel® Trace Analyzer can also open trace files in the OTF2 format (Open Trace Format, version 2). However, before opening an OTF2 trace file, the tool needs to convert it to STF. There are two options to do this:
  • Use the command-line
    utility. See
    for details.
  • Use the conversion dialog box when opening the OTF2 file. See the instructions below.
To open an OTF2 trace file, do the following:
  1. Invoke the Intel Trace Analyzer GUI:
    $ traceanalyzer &
  2. Go to
    File > Open
  3. From the
    Files of type
    field select
    Open Trace Format
    , navigate to the
    file and double-click it open.
  4. The OTF2 to STF conversion dialog appears. Review the available fields and checkboxes and click
    to start conversion.
As a result, the OTF2 file will be converted to STF, and you will be able to view it in Intel Trace Analyzer.
There are currently a few limitations related to this functionality:
  • The functionality is available on Linux* OS only.
  • Identification of function locations in source code is not supported.
  • Due to limitations in the OTF2 API, the converter may improperly write information about non-blocking collective operations.

Product and Performance Information


Performance varies by use, configuration and other factors. Learn more at