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DeepSeek's AI breakthrough bypasses industry-standard CUDA, uses assembly-like PTX programming instead
(www.tomshardware.com)
this post was submitted on 28 Jan 2025
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Part of this was an optimization that was necessary due to their resource restrictions. Chinese firms can only purchase H800 GPUs instead of H200 or H100. These have much slower inter-GPU communication (less than half the bandwidth!) as a result of export bans by the US government, so this optimization was done to try and alleviate some of that bottleneck. It's unclear to me if this type of optimization would make as big of a difference for a lab using H100s/H200s; my guess is that it probably matters less.