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Comment by nacs

7 hours ago

5090 has 32GB VRAM.

It'd be silly to buy the 18k model to run a tiny model like Qwen 27B. You use models like GLM Flash and Qwen Next which won't fit on a single 5090.

Is it that silly? You could run multiple 27B models in parallel.

  • You actually don't need more RAM to batch multiple inference tasks of the same model.

    (Each task needs its own context, but the (e.g.) 27B of constant parameters isn't duplicated).

    • You definitely need more RAM if you are not satisfied with small context windows, especially if the weights take a large % of the total memory to boot.

can run multiple subagents of Qwen 27B though, right? Unless I am fundamentally misunderstanding how VRAM constraints work

  • You might be. Running another agent doesn't load a set of new weights. It creates a new KV cache for the agent and adds the prompts to the queue. Its just another inference turn.