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containers
Guide for using containers on Isambard AI (BriCS) supercomputers with Podman-HPC and Apptainer (formerly Singularity). Use this skill whenever a user asks about running containers on Isambard, using podman-hpc or apptainer/singularity, pulling or building container images, running containers on compute nodes or across multiple nodes with MPI or NCCL, GPU access inside containers, squashfs image migration, the brics/nccl or brics/apptainer-multi-node modules, using NGC (Nvidia GPU Cloud) containers on Isambard, or getting full Slingshot 11 interconnect bandwidth from containerised workloads. Also trigger for questions about aarch64-compatible container images, --fakeroot builds, the /host/adapt.sh entrypoint, or any container-related workflow on an HPE Cray system.