Comment by bigyabai

5 hours ago

A 5T MoE model is still bottlenecked by streaming weights from SSD, in addition to compute bottlenecks during prefill and decode.

2 comments

bigyabai

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zozbot234  1 hour ago

True but a cluster built on pipeline parallelism can naturally stream from multiple SSD's in parallel. That probably makes offload somewhat more effective. And you also have RAM caching available as a natural possibility.

  • bigyabai  1 hour ago

    You won't be RAM caching much of anything with experts that are 220b parameters worth of layers.