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ACCESS-ESM1.6 is an update to ACCESS-ESM1.5, developed for CMIP7 fast tracks.\n\n## Support\n\nAny questions about ACCESS-NRI releases of ACCESS-ESM1.6 should be done through the [ACCESS-Hive Forum](https://forum.access-hive.org.au/). See the [ACCESS Help and Support topic](https://forum.access-hive.org.au/t/access-help-and-support/908) for details on how to do this.\n\n### Build\n\nACCESS-NRI is using [spack](https://spack.io), a build from source package manager designed for use with high performance computing. This repository contains a [spack environment](https://spack.readthedocs.io/en/latest/environments.html) definition file ([`spack.yaml`](https://github.com/ACCESS-NRI/ACCESS-ESM1.6/blob/main/spack.yaml)) that defines all the essential components of the ACCESS-ESM1.6 model, including exact versions.\n\nSpack automatically builds all the components and their dependencies, producing model component executables. Spack already contains support for compiling thousands of common software packages. Spack packages for the components in ACCESS-ESM1.6 are defined in the [spack packages repository](https://github.com/ACCESS-NRI/spack_packages/).\n\nACCESS-ESM1.6 is built and deployed automatically to `gadi` on NCI (see below). However it is possible to use spack to compile the model using the `spack.yaml` environment file in this repository. To do so follow the [instructions on the ACCESS Forum for configuring spack on `gadi`](https://forum.access-hive.org.au/t/how-to-build-access-om2-on-gadi/1545).\n\nThen clone this repository and run the following commands on `gadi`:\n\n```bash\nspack env create access-esm1p6 spack.yaml\nspack env activate -p access-esm1p6\nspack install\n```\n\nto create a spack environment called `access-esm1p6` and build all the ACCESS-ESM1.6 components, the locations of which can be found using `spack find --paths`.\n\n### Deployment\n\nACCESS-ESM1.6 is deployed automatically when a new version of the [`spack.yaml`](https://github.com/ACCESS-NRI/ACCESS-ESM1.6/blob/main/spack.yaml) file is committed to `main` or a dedicated `backport/VERSION` branch. All the ACCESS-ESM1.6 components are built using `spack` on `gadi` and installed under the [`vk83`](https://my.nci.org.au/mancini/project/vk83) project in `/g/data/vk83`. It is necessary to be a member of [`vk83`](https://my.nci.org.au/mancini/project/vk83) project to use ACCESS-NRI deployments of ACCESS-ESM1.6.\n\nThe deployment process also creates a GitHub release with the same tag. All releases are available under the [Releases page](https://github.com/ACCESS-NRI/ACCESS-ESM1.6/releases). Each release has a changelog and meta-data with detailed information about the build and deployment, including:\n\n- paths on `gadi` to all executables built in the deployment process (`spack.location`)\n- a `spack.lock` file, which is a complete build provenance document, listing all the components that were built and their dependencies, versions, compiler version, build flags and build architecture\n- the environment `spack.yaml` file used for deployment\n\nAdditionally the deployment creates environment modulefiles, the [standard method for deploying software on `gadi`](https://opus.nci.org.au/display/Help/Environment+Modules). To view available ACCESS-ESM1.6 versions:\n\n```bash\nmodule use /g/data/vk83/modules\nmodule avail access-esm1p6\n```\n\nFor users of ACCESS-ESM1.6 model configurations released by ACCESS-NRI the exact location of the ACCESS-ESM1.6 model executables is not required. Model configurations will be updated with new model components when necessary.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Faccess-nri%2Faccess-esm1.6","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Faccess-nri%2Faccess-esm1.6","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Faccess-nri%2Faccess-esm1.6/lists"}