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The Filesystem Your Multi-GPU Rig Actually Needs

You install four PCIe Gen5 NVMe drives in a multi-GPU server, bring up eight H100s, launch torchrun , and notice an irritating pattern: GPU utilization fluctuates between 40% and 95%. A quick look at nvidia-smi suggests that the GPUs are waiting for data. Profiling shows that CPU time is being spen…

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  1. 2026-11-10 22:28 · DEV Community — AI
    The Filesystem Your Multi-GPU Rig Actually Needs

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