hpc-h-series

name	hpc-h-series
description	Design H-series HPC clusters (HBv3/HBv4, HX) with InfiniBand

Hpc H Series

When to use this skill

• MPI workloads, CFD, weather, molecular dynamics

Key concepts

• HBv3 — AMD EPYC Milan + 200 Gbps HDR InfiniBand.
• HBv4/HX — Genoa-X with 3D V-Cache + NDR InfiniBand.
• Topology-aware placement via Proximity Placement Group.
• Use SR-IOV InfiniBand drivers from HPC images.

Common pitfalls

• Forgetting PPG — VMs may be spread across spine, killing latency.

References

• Microsoft Learn: search for "Hpc H Series Azure VM" on https://learn.microsoft.com

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