Intel® Trace Analyzer and Collector

What's New

This User and Reference Guide documents Intel® Trace Analyzer 2017 Update 2.

Intel® Trace Analyzer 2017 Update 2:

  • Enhancements of function color selection on timelines.

Intel® Trace Analyzer 2017 Update 1:

Intel® Trace Analyzer 2017:

Trace Map

Trace Map enables you to zoom into the relevant subsets of large trace file Charts. It represents a miniature view of the MPI function activity over time. By default, the MPI function activity is shown in red color.

Intel® Trace Analyzer

Flat Profile

By default, the Flat Profile summarizes all major groups of functions and presents statistics over the processes. The exact contents of these groups depend on the group definitions stored in the trace file or you can define them by yourself. In the file poisson_icomm.single.stf, these are only MPI and Application groups.

Do This:

To Do This:

General Preferences

The General Preferences enable you to set up the basic Intel® Trace Analyzer behavior, such as the startup options, view style, confirmation before quitting the Intel Trace Analyzer and the number of the recently opened tracefiles.

otf2-to-stf Utility

Note

This is a preview feature. A preview feature may be changed or removed in a future production release.

Synopsis

otf2-to-stf <options> <OTF2 file> 
--help
--version

Description

Use this utility to convert an OTF2 trace file to the STF format to be able to view the trace file in Intel® Trace Analyzer. After conversion the resulting file appears in the same directory as the input file.

Tracing MPI Load Imbalance

Normally, tracing of all MPI events results in a large size of the trace file, even for relatively small applications. To reduce the trace file size, but be able to get an impression of the application bottlenecks, you can trace only the MPI functions that cause application load imbalance. That is, an MPI function is traced only if it was idle at some point of the application run, causing the imbalance. This functionality is implemented in the libVTim library.

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