Slurm
A widely used open-source workload manager and job scheduler for HPC and AI clusters.
Current numbers
~70% / ~20% / ~10%AI/HPC scheduler share: Slurm / Kubernetes / in-house (rule of thumb)
~90% K8s / ~50% SlurmGPU-cloud customers who prefer K8s to serve inference vs who train on Slurm (SemiAnalysis via CoreWeave, April 2025)