Tutorial

Analyze MPI Applications with Intel® Trace Analyzer and Collector and Intel® VTune™ Profiler

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ID 773180
Date 3/31/2023
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Document Table of Contents
Document Table of Contents x
Analyze MPI Applications with Intel® Trace Analyzer and Collector and Intel® VTune™ Profiler
Analyze MPI Applications with Intel® Trace Analyzer and Collector and Intel® VTune™ Profiler x
Prerequisites Starting Intel® Trace Analyzer Starting Intel® VTune™ Profiler Analyzing an MPI Application Summary Notices and Disclaimers
Analyzing an MPI Application x
Optimizing MPI Communications Improving Intra-process Performance
Optimizing MPI Communications x
Prepare for Analysis Ungroup MPI Functions Detect Serialization in Function Profile and Message Profile Compare Original Trace File With Idealized Trace File Remove Serialization Compare Two Trace Files Analyze Optimized Communications
Improving Intra-process Performance x
Run Basic Hotspots Analysis Interpret Results
Analyze MPI Applications with Intel® Trace Analyzer and Collector and Intel® VTune™ Profiler

Prepare for Analysis

To analyze the application, start with the following steps:

  1. Open the poisson_sendrecv.single.stf sample trace file.

  2. Go to Charts > Event Timeline to open the Event Timeline.

    NOTE:
    When you open a new trace file, Function Profile and Performance Assistant charts open by default. You can change the default chart in the Preferences dialog box (Options > Preferences > Tracefile preferences).

  3. In the Event Timeline, click and drag your mouse over a specific time interval to zoom into it.



  4. You should start noticing the iterative nature of the application. Zoom deeper into the trace by selecting a single iteration.

    This is the view of the zoom. The Trace Map shows the section within the trace that is displayed. The Event Timeline chart shows the events that were active during the selected time.



Parent topic: Optimizing MPI Communications
Level Two Title