profile_memtest

Table of Contents

1. Description
2. Setup - The basics of getting started with profile_memtest
3. Usage - Configuration options and additional functionality
4. Dependencies
5. Limitations - OS compatibility, etc.
6. Development - Guide for contributing to the module

Description

This puppet profile creates scripts to run STREAM for performance testing (memory) on compute nodes

It does not install STREAM.

Setup

Include profile_memtest in a puppet profile file.

include ::profile_memtest

Usage

Setup a desired performance table using profile_memtest::performance_table (multi-line string). The 1st column contains regex to match the host running the script. The 2nd column contains expected / desired STREAM Triad performance. Additional columns may be added if you want to run the script on multiple cores (NUMA nodes). The format requires a new column for each core number you want to test on. If performance_table is not defined, the script will error out.

Example

profile_memtest::performance_table: |
  ^mg0([0-7]|8[0-4]) 13500 0 1
  ^mg08[5-8] 13000 0 16 32 48
  ^mgtest0[1-5] 15000

If STREAM is not located in the default installation path (/var/spool/slurmd/mom_priv/bin/stream), define profile_memtest::stream_path.

The profile will create two files in /root/scripts/

• memtest_script The executable that you can run
• memtest_table The reference table for desired STREAM performances

A successful run will not display any output. Use the -v flag for verbose mode to display output to screen.

Dependencies

This profile requires STREAM to be installed.

Reference

This section is deprecated. Instead, add reference information to your code as Puppet Strings comments, and then use Strings to generate a REFERENCE.md in your module. For details on how to add code comments and generate documentation with Strings, see the [Puppet Strings documentation][2] and [style guide][3].

Limitations

n/a

Development

This Common Puppet Profile is managed by NCSA for internal usage.