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Blackwell Brings NUMA Back, Inside One GPU

AI · Hardware · 2026-10-26 07:08

NVIDIA's Blackwell B200/B300 GPUs consist of two dies linked via NV-HBI, making cross-die HBM access slower. DeepGEMM's MegaMoE kernel addresses this with die-local memory and scheduling optimizations, effectively reintroducing NUMA considerations inside a single GPU.

Source: vincentzed.com


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