hpctoolkit  2021.05
About: HPCToolkit contains tools for measuring the performance of unmodified, fully-optimized binaries of parallel programs and correlating the results with program structure in order to find performance bottlenecks in emerging petascale systems.
  Fossies Dox: hpctoolkit-release-2021.05.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

hpctoolkit Documentation

Some Fossies usage hints in advance:

  1. To see the Doxygen generated documentation please click on one of the items in the steelblue colored "quick index" bar above or use the side panel at the left which displays a hierarchical tree-like index structure and is adjustable in width.
  2. If you want to search for something by keyword rather than browse for it you can use the client side search facility (using Javascript and DHTML) that provides live searching, i.e. the search results are presented and adapted as you type in the Search input field at the top right.
  3. Doxygen doesn't incorporate all member files but just a definable subset (basically the main project source code files that are written in a supported language). So to search and browse all member files you may visit the Fossies hpctoolkit-release-2021.05.tar.gz contents page and use the Fossies standard member browsing features (also with source code highlighting and additionally with optional code folding).


HPCToolkit is an integrated suite of tools for measurement and analysis of program performance on computers ranging from multicore desktop systems to the nation's largest supercomputers. HPCToolkit provides accurate measurements of a program's work, resource consumption, and inefficiency, correlates these metrics with the program's source code, works with multilingual, fully optimized binaries, has very low measurement overhead, and scales to large parallel systems. HPCToolkit's measurements provide support for analyzing a program execution cost, inefficiency, and scaling characteristics both within and across nodes of a parallel system.

HPCToolkit is released under the 3-clause BSD license. See the file README.License for details.

Build Instructions

Build instructions are available at:


HPCToolkit can be installed either by the one-button spack install hpctoolkit method, or by building the prerequisites with spack and then using the classic autotools configure && make && make install method.


Documentation is available at the HPCToolkit home page:


In particular, there is a PDF User's Manual at:


Bug Reports and Questions

The best way to contact us for bug reports or questions is via the mailing list hpctoolkit-forum =at= rice.edu. The mailman list is technically members-only, but you don't really need to be a member. Just send mail to this address and then we can white-list you.

If reporting a problem, be sure to include sufficient information about your system, what you tried, what went wrong, etc, to allow us follow your steps.

  • type of system, architecture, linux distribution and version, compiler version, glibc version.

  • hpctoolkit version.

  • if a build failure, then the config.log file from the build directory and the output from make.

  • if a run failure, then what command you ran and how it failed.