What It Actually Takes to Run Code on 200M€ Supercomputer
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A first-hand account of using MareNostrum V, one of the world's top 15 supercomputers, for generating synthetic ML training data via CFD simulations. Covers the machine's architecture including its InfiniBand fat-tree topology, 6,408 CPU nodes and 1,120 H100 GPU nodes, and newly integrated quantum hardware. Explains the
Table of contents
The Architecture: Why You Should Care About the WiringAirgaps, Quotas, and the Reality of HPCUnderstanding SLURM Workload ManagerA Practical Example: Orchestrating an OpenFOAM SweepParallelism Limits: Amdahl’s LawThe Access to the PromptReferencesSort: