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Prerequisites for Cloning and Running CMEW at the Met Office

This page lists the prerequisites for the metoffice site:

  • Cloning the Climate Model Evaluation Workflow (CMEW) repository

  • Running CMEW on Met Office systems

CMEW users at the Met Office will need access to:

  • Git

  • Cylc

  • MASS

  • The ESMValTool community environment

  • CDDS

1 Cloning the CMEW repository

1.1. Access and Network

  • A valid user account.

  • Internet access to the CMEW GitHub repository (via SSH or HTTPS).

1.2. Git Installed

git must be available on your login node.

  • Check:

    git --version

1.3. GitHub Authentication

You need either SSH or HTTPS authentication.

1.4 Access and Platform for Running CMEW

You must be able to submit Slurm jobs under a valid account/project.

Quick checks:

sinfo
squeue -u $USER

2 Cylc and Rose

On the Met Office system, Cylc and Rose are normally provided centrally. These versions are known to work with the CMEW prototype:

  • Cylc Flow 8.x (e.g. 8.6.1)

  • Rose 2.x (e.g. 2.6.2)

Verify you are using the system stack:

which cylc
cylc --version
which rose
rose --version

Expected examples:

/usr/local/bin/cylc with Cylc 8.6.1
/usr/local/bin/rose with Rose 2.6.2

2.1 Diagnostics Environment (ESMValTool)

CMEW runs ESMValTool recipes for diagnostics. You need:

  • a working ESMValTool installation available on your Linux system

Sanity check after loading the esmvaltool module:

module load scitools/community/esmvaltool/2.10.0
esmvaltool --version

2.2 Met Office MOOSE account is required

Check that a valid MOOSE account exists. Verify that the credentials file is installed correctly and that MASS access is possible:

moo si -v

Contact ServiceNow for a MOOSE account if there is no access to MASS.

2.3 Standardisation Environment (CDDS / CMORisation)

CMEW standardises model data prior to diagnostics using CDDS.

  • CDDS is centrally installed on the Met Office system.