Cylc
The facts below are what the maker publishes about Cylc, checked and dated. Our editors have not written about it yet.
Plans and prices
From Cylc's own pricing page, checked 12 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Cylc | Free | The official pages opened list no paid plans or usage limits. |
The facts
Each one read from Cylc's own pages, with the date it was checked.
What it does
- Access controls
- For multi-user setups, the UI Server can be configured to grant specified users read or control permissions for workflows under other accounts.checked 12 Oct 2026
- Conditional logic
- Yeschecked 24 Sep 2026
- Distributed execution
- Workflows can be distributed across servers and platforms, including network, HPC, and cloud environments.checked 12 Oct 2026
- Extensibility
- Users can write custom job runner handlers when the required job runner is not among the built-in integrations.checked 12 Oct 2026
- Installation
- Cylc runs on Linux and macOS and the installation guide recommends conda-forge.checked 12 Oct 2026
- Interfaces
- Cylc provides a web GUI, a terminal user interface, and a command line interface for visualising, monitoring, and controlling workflows.checked 12 Oct 2026
- Job runners
- Built-in job runner handlers include background execution, PBS or Torque, Slurm, LSF, SGE, Moab, and LoadLeveler.checked 12 Oct 2026
- Jupyter
- The Cylc dashboard can be deployed with JupyterHub for multi-user setups and alongside JupyterLab as a browser-based virtual workstation.checked 12 Oct 2026
- Multi-step workflows
- Yeschecked 24 Sep 2026
- Requirements
- The pip installation requires Python 3.12 or later, Bash, GNU coreutils, SSH, and rsync.checked 12 Oct 2026
- Resilience
- Cylc can automatically recover from failures and repeat workflows.checked 12 Oct 2026
- Security configuration
- The documentation warns that Jupyter Server needs a suitable authorization policy in some deployments to prevent users with server access from executing arbitrary code under another account.checked 12 Oct 2026
- Support
- Community support is available on the Cylc Discourse forum, and the site says commercial support is available from Altair.checked 12 Oct 2026
- What it does
- Cylc is a workflow engine that automatically executes computational tasks according to schedules and dependencies.checked 12 Oct 2026
- Who it is for
- Cylc was developed for weather forecasting and is described as a general-purpose tool for business and scientific research.checked 12 Oct 2026
- Workflow types
- It schedules both acyclic task graphs and cycling workflows, including tasks with inter-cycle dependencies.checked 12 Oct 2026
Money
- Free plan
- Yeschecked 24 Sep 2026
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