Intel® VTune™ Profiler User Guide

User Guide

Contents

Arbitrary Targets

Configure and generate a command line for performance analysis on a system that is not accessible from the current host.
Besides targets accessible to
Intel® VTune™
Profiler
 directly on the host or via a remote connection (SSH or ADB), you have an
Arbitrary Host
 option to create a command line configuration for a platform not accessible from the current host. You can select any of the supported hardware platforms and operating systems, configure corresponding target and analysis options, and generate a command line by clicking the
Command Line
 button. The generated command line will be saved in the buffer and can be used later on the intended host.
The option to generate a command line from GUI via the
Command Line
button is available for both accessible and arbitrary targets.
To configure an analysis for an arbitrary host:
  1. Create a new project or click the
    Configure Analysis
     toolbar button for an existing project.
  2. From the
    Configure Analysis
     window, click the
    Browse
     button on the
    WHERE
     pane and select the
    Arbitrary Host (not connected)
    type of the target system.
  3. Specify a platform for profiling:
    • Select a hardware platform for analysis from the drop-down menu, for example: Intel® processor code named Anniedale.
    • Specify either Windows* or GNU*/Linux* operating system.
  4. Switch to the
    WHAT
     pane to configure analysis target options.
    For MPI analysis of an arbitrary target, enable the
    Use MPI launcher
     check box to generate a command line configuration. Configure the following MPI analysis options:
    • MPI launcher
      : Select an MPI launcher that should be used for your analysis. You can either enable the
      Intel MPI
       launcher option (default) or select
      Other
       and specify a launcher of your choice, for example:
      aprun
      ,
      srun
      , or
      lbrun
      .
    • Number of ranks
      : Specify the number of ranks used for your application.
    • Profile ranks
      : Use
      All
       to profile all ranks, or choose
      Selective
       and specify particular ranks to profile, for example: 2-4,6-7,8.
    • Result location
      : Specify a relative or absolute path to the directory where the analysis result should be stored.
    If your target system is not powerful enough, consider selecting another system for the result finalization as follows:
    In this case,
    VTune
    Profiler
     calculates only binary checksum to be used for finalization on the host machine. This option is recommended for analysis on the Intel Xeon Phi processor (code name: Knights Landing).
  5. Switch to the
    HOW
     panechoose and configure (if required) an analysis type.
  6. Click the
    Command Line...
     button at the bottom to generate a command line for your configuration.
    For example,
    VTune
    Profiler
     generates the following command line for a
    test
     MPI application that will be launched on a GNU/Linux system via Intel MPI launcher and analyzed for Memory Access issues on ranks 2-4,6-7,8: 
    $ mpirun -n 14 -gtool "vtune -collect memory-access:2-4,6-7,8" /temp/vtune/test
  7. Click the
    Copy
     button to copy the generated command line to the buffer and use it later on the intended host.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.