Podman containers and HPC
summary
CentOS 7/8 now ships Podman which provides rootless containers that run on HPC without extra engines; OpenHPC + Slurm + Open MPI integrate with Podman so containers start under Slurm on compute nodes. Demo shows pulling an MPI image, mounting /tmp, keeping user IDs, using host network/PID/IPC namespaces, and launching 8 MPI ranks across two nodes (4+4) which successfully communicate. Other HPC runtimes lack out‑of‑the‑box rootless build and push/pull support.
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chapters (6)
- 0:00Introduction to talk
- 1:27What is HPC
- 9:45About OpenHPC project
- 16:07Containers in HPC context
- 21:01Live demo with Podman
- 31:58Q&A session
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