This is an official release of access-om2 2026.02.002 to the HPC(s) Gadi.

Deployment Information

Gadi

Deployed using spack 1.1, spack/spack-packages 383e969358c951abe17623696083e6f862c4488e, ACCESS-NRI/access-spack-packages 2026.03.002 and spack-config 2026.02.003.

Deployed as a module accessible using:

module use /g/data/vk83/modules
module load access-om2/2026.02.002

What's Changed

• Release ACCESS-OM2 2026.02.002 by @dougiesquire in #144

Full Changelog: 2026.02.001...2026.02.002

This is an official release of access-om2 2026.02.001 to the HPC(s) Gadi.

Deployment Information

Gadi

Deployed using spack 1.1, spack/spack-packages 383e969358c951abe17623696083e6f862c4488e, ACCESS-NRI/access-spack-packages 2026.02.004 and spack-config 2026.02.003.

Deployed as a module accessible using:

module use /g/data/vk83/modules
module load access-om2/2026.02.001

What's Changed

Model

• Update to mom5 2026.02.000 and libaccessom2 2026.02.000 to allow use of GCC by @dougiesquire in #142
• Update to FMS mom5-2025.08.000 for consistency in the latent heat of vaporisation between MOM and CICE by @dougiesquire in #142
• Update to access-generic-tracers 2026.02.000 by @dougiesquire in #142

Infrastructure

• update-configs: Add configs to default profile by @dougiesquire in #141

Full Changelog: 2026.02.000...2026.02.001

This is an official release of access-om2 2026.02.000 to the HPC(s) Gadi.

Deployment Information

Gadi

Deployed using spack 1.1, spack/spack-packages 383e969358c951abe17623696083e6f862c4488e, ACCESS-NRI/access-spack-packages 2026.02.003 and spack-config 2026.02.003.

Deployed as a module accessible using:

module use /g/data/vk83/modules
module load access-om2/2026.02.000

What's Changed

Model

• Update to cice5 2026.01.000 by @anton-seaice in #137
• Update to access-generic-tracers 2026.01.000 by @dougiesquire in #137

Infrastructure

• Infra Update v7: !update-configs Comment Command by @CodeGat in #119
• Infra Update v8: spack v1 Support by @CodeGat in #124

Full Changelog: 2025.12.000...2026.02.000

This is an official release of access-om2 2025.12.000 to the HPC(s) Gadi.

Deployment Information

Gadi

Deployed using spack 0.22, spack-packages 2025.09.004 and spack-config 2025.08.000.

Deployed as a module accessible using:

module use /g/data/vk83/modules
module load access-om2/2025.12.000

What's Changed

Model

• Update to:

  • Intel oneAPI compilers version 2025.2.0
  • openmpi version 5.0.8

  by @harshula, @manodeep and @dougiesquire in #130

Infrastructure

• Remove openmpi from modules injection by @anton-seaice in #130

Full Changelog: 2025.09.000...2025.12.000

This is an official release of access-om2 2025.09.000 to the HPC(s) Gadi.

Deployment Information

Gadi

Deployed using spack 0.22, spack-packages 2025.09.004 and spack-config 2025.08.000.

Deployed as a module accessible using:

module use /g/data/vk83/modules
module load access-om2/2025.09.000

What's Changed

Model

The main change in this release is an update to mom5 to allow using ACCESS-OM2 with coupled generic-tracers, including WOMBATlite/mid. However, all model components and many dependencies are also updated, with relevant details summarised below. This release does not change answers for released non-BGC ACCESS-OM2 configurations.

• [email protected] -> [email protected]

  • Changes to allow using ACCESS models with generic-tracers by @dougiesquire
  • Build system overhaul (CMake) by @dougiesquire
  • Small change to allow compiling with oneAPI by @harshula
  • Preserves answers with released non-BGC configs

• [email protected] -> [email protected]

  • Small change to allow compiling with oneAPI by @harshula
  • Preserves answers with released configs

• [email protected] -> [email protected]

  • Small update to CMake build system by @dougiesquire
  • Preserves answers with released configs

• [email protected] -> [email protected]

  • Small change to allow compiling with oneAPI by @manodeep
  • Preserves answers with released configs

• Use [email protected]

  • Previously used MOM5 internal FMS
  • Preserves answers with released configs

• Use [email protected] and [email protected]

  • Previously used MOM5 internal legacy WOMBAT
  • The WOMBAT models in this package do not preserve answers with released BGC configs

• [email protected] -> [email protected]

• [email protected] -> [email protected]

• [email protected] -> [email protected]

• [email protected] -> [email protected]

Infrastructure

• Prerelease PR# versioning by @CodeGat in #57
• Simplified ci/cd workflow by @CodeGat in #59
• Add developer docs by @aidanheerdegen in #67
• DEVELOPERS.md: refer to set-up Spack instructions on Hive-Docs by @harshula in #80
• Updated config/versions.json to 3-0-0 by @CodeGat in #83
• Infra Update: spack.yaml Simplification, new Projections by @CodeGat in #85
• ci.yml: Update to infra v2 by @CodeGat in #90
• CI Infrastructure Update to v3 by @CodeGat in #92
• Set the spack-version explicitly when @git. is used by @harshula in #96
• Deployment Infrastructure V4: Multi-HPC Deployments by @CodeGat in #95
• Infra Update: New Release Provenance Database and Workflow Triggers by @CodeGat in #105
• Set the spack-version explicitly when @git. is used for specs by @harshula in #107
• Remove CONTRIBUTING.md by @CodeGat in #108
• add conditions of use to README.md by @aekiss in #101
• Infra Update v6: Modules Injection, More Provenance by @CodeGat in #114

New Contributors

• @aekiss made their first contribution in #101

Full Changelog: 2024.03.0...2025.09.000

This release of access-om2 2024.03.0 uses spack-packages 2024.03.22 and spack-config 2024.03.22.

What's Changed

Model

• Require parallelio 2.5.2 by @harshula in #31. Downgrading parallelio from 2.5.10 (default) to 2.5.2 improved performance and matched performance of COSIMA releases.

• Depend on openmpi instead of nci-openmpi and add restart reproducibility by @harshula in #49. Depending on openmpi removes NCI specific packages from the build making it more generic with no loss of functionality.
  Adding restart reproducibility breaks historical reproducibility. So this version of ACCESS-OM2 is not bitwise reproducible with any previous version, including COSIMA releases.

Infrastructure

• Update README.md by @aidanheerdegen in #27
• GitHub Release Provenance by @CodeGat in #28
• Modulefile name declarations by @CodeGat in #29
• PR now notifies you of spack-{packages,config} version about to be deployed by @CodeGat in #36
• Prerelease Functionaility by @CodeGat in #35
• CD Fixes by @CodeGat in #37
• Changed on.pull_request.branches from source to target branch by @CodeGat in #40
• Prerelease deploy job runs on valid skipped jobs by @CodeGat in #41
• JSON Validity Check and Full Commit History for Deployment Number by @CodeGat in #42
• CI Comment Check Fix by @CodeGat in #44
• Deployment Number based on origin/main rather than main by @CodeGat in #45
• Updated references to called deploy-1-setup.yml with the new ref, version inputs by @CodeGat in #46
• 'Rolling Tag' logic for pre/release builds by @CodeGat in #47
• Allow backported bugfixes to picked up by CI/CD by @CodeGat in #51

New Contributors

• @harshula made their first contribution in #31

Full Changelog: 2023.11.23...2024.03.0

This release is bitwise reproducible with the last COSIMA ACCESS-OM2 version.

What's Changed

• Updated README.md by @aidanheerdegen in #21
• YAML Reorganisation by @CodeGat in #23

New Contributors

• @aidanheerdegen made their first contribution in #21

Full Changelog: 2023.11.19...2023.11.23