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GitHub Actions Runners

By default ASWF projects under the AcademySoftwareFoundation GitHub organization have access to the Standard GitHub-hosted runners for public repositories for Linux, Windows and macOS. Our GitHub organization qualifies as an Enterprise organization which increases the limits for job concurrency and usable monthly minutes.

Some ASWF projects have their own top-level GitHub organization: these are included under our Enterprise account and should have the same access as projects / repos under the AcademySofftwareFoundation GitHub organization.


ASWF also has a limited monthly budget for Larger Runners which add runners to support larger numbers of CPU, more RAM, different CPU architectures and GPUs. These Larger Runners are managed by Linux Foundation Release Engineering team and can be selected by the runs-on  directive in the workflow file. They can only be used by CI jobs running in the context of the project repository, they cannot be accessed from a fork.

Since the monthly budget is limited, projects should make judicious use of these Larger Runners, possibly for lower frequency jobs to validate different CPU architectures, or to run a GPU-accelerated test suite rather than a full compilation. Projects wishing to use these Larger Runners may want to bring up their requirements for discussion in the #wg-ci Slack channel.

Users with commit access to a repository can show the larger runners available to the repo under Actions → Runners → Github-hosted runners :


As of July 2024, the following Larger Runners are available. Additional configurations can be discussed in the #wg-ci Slack channel and requested via a Linux Foundation help desk ticket:

  • 4 core x86_64 / 16GB / 150GB disk
    • ubuntu-latest-m 
  • 4 core x86_64 / 16GB / 176GB disk NVIDIA Tesla T4 GPU
    • ubuntu-20.04-gpu-t4-4c-16g-176h 
    • windows-ds-2019-gpu-t4-4c-16g-176h 
  • 8 core x86_64 / 32GB / 300GB disk
    • ubuntu-20.04-8c-32g-300h 
    • ubuntu-22.04-8c-32g-300h
    • ubuntu-latest-8c-32g-300h
    • windows-2022-8c-32g-300h
    • windows-latest-l 
  • 16 core x86_64 / 64GB /  600GB disk
    • ubuntu-20.04-16c-64g-600h 
    • ubuntu-22.04-16c-64g-600h
    • ubuntu-latest-16c-64g-600h
    • windows-2022-16c-64g-600h 
  • 2 core arm64 / 8GB / 75GB disk
    • ubuntu-24.04-arm64-2C-8G-75H 
    • ubuntu-24.04-arm64-2C-8G-75H 
  • 4 core arm64 / 16GB / 150GB disk
    • ubuntu-22.04-arm64-4C-16G-150H 
    • ubuntu-24.04-arm64-4C-16G-150H
    • windows-11-arm64-4C-16G-150H 
  •  8 core arm64 / 32GB / 300GB disk
    • ubuntu-22.04-arm64-8C-32G-300H 
    • ubuntu-24.04-arm64-8C-32G-300H 
    • windows-11-arm64-8C-32G-300H 
  • 16 core arm64 / 64GB / 600GB disk
    • ubuntu-22.04-arm64-16C-64G-600H 
    • ubuntu-24.04-arm64-16C-64G-600H 
    • windows-11-arm64-16C-64G-600H 

Issue with GitHub Actions and CentOS 7 based aswf-docker containers


The GitHub Actions runner is based on Node.js, and in the transition from Node 16 to 20, uses a build of Node linked against libc 2.27. This will prevent CI builds using aswf-docker containers based on the VFX Reference Platform 2022 or older from running:

/__e/node20/bin/node: /lib64/libm.so.6: version `GLIBC_2.27' not found (required by /__e/node20/bin/node)


This issue is discussed here: https://github.com/actions/runner/issues/2906

The workaround for now is to add the following environment variables to the workflow file:

   env:
      ACTIONS_RUNNER_FORCE_ACTIONS_NODE_VERSION: node16
      ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true

and to keep using version 3 of the checkout  action:

- uses: actions/checkout@


but there is no guarantee how long this will continue working.

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