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Notes from the fabric.
Engineering deep-dives, operational war stories, and the occasional opinion about bandwidth. Written by the people who run the platform.
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Recent writing.
The HBM bandwidth playbook
Why your training run is memory-bound, how to read HBM error counters before they read you, and when more bandwidth beats more GPUs.
Read post →What 1,000-GPU training teaches operators
Twelve lessons from running multi-week pretraining jobs — including the three that only surface at 3 a.m. in a data center.
Read post →The inference latency playbook
P99 math that matters, batching curves, and the checklist we run before a model earns a production endpoint.
Read post →Ready to push the frontier?
Provision bare-metal GPUs in minutes, scale capacity on demand, and get a real engineer on call — not a ticket queue.