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Frequently Asked Questions

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This FAQ is for Open MPI v4.x and earlier.
If you are looking for documentation for Open MPI v5.x and later, please visit docs.open-mpi.org.

Table of contents:

  1. What are the netloc tools? How do I use them?


1. What are the netloc tools? How do I use them?

The netloc project creates a small collection of tools to help users collect and analyze the network topology. Each tool is listed below with a link to further documentation about how to use it properly.

  • Network Readers
  • lsnettopo
    A tool to display a textual representation of the network topology. It can also export the graph to some standard graph file formats.
  • netloc_ib_extract_dats
    A tool to assist in the extraction of netloc data from raw InfiniBand data. (see this FAQ for more details).
  • netloc_ib_gather_raw
    A tool to assist in the gathering of raw InfiniBand data. (see this FAQ for more details).