Charliecloud vs SingularityCE
Charliecloud
charliecloud.io
SingularityCE
sylabs.ioSide by side
| Figure | Charliecloud | SingularityCE |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Linux | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Container Engines | 7.9 (#10) | 7.3 (#24) |
| Spec score · Container Runtime Software | 8.0 (#12) | 7.3 (#24) |
| Purpose | Charliecloud is a lightweight, fully unprivileged, open source container implementation for high performance computing applications. | SingularityCE creates and runs portable, reproducible containers that package software into a single file. |
Plans
In their own words
Charliecloud
Charliecloud is free, open-source container software for high-performance computing on Linux. It runs containers without privileged operations or daemons by using Linux user namespaces, with minimal configuration changes on computing-center resources. Users can build images, push and pull them to registries, and use accelerators such as GPUs. Its layer-free build cache is based on Git rather than union-mount filesystems and tarballs, and Dockerfiles are parsed with a formal grammar. The ch-image tool supports registry authentication and registries including GitLab Container Registry. At runtime, ch-run can inject host resources through the Container Device Interface, including NVIDIA GPUs and Cray networking. Installation is available from a release tarball, Git checkout, Spack, or Fedora/EPEL. Charliecloud requires Linux user namespaces and has been run on x86-64, ARM, and Power; current testing covers x86_64 and ARM. It is distributed under Apache License, Version 2.0. The project supports only the current release and provides no internal security boundary.
SingularityCE
SingularityCE has no write-up on Specifiction yet; its figures are above.