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·19 hr ago·Dev community · RSS

Running GLM 5.2 on 4xGB10 with a 100G Switch, 330k ctx, ~25 t/s tg, ~650 t/s pp

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Running GLM 5.2 on 4xGB10 with a 100G switch achieves ~25 t/s generation and ~650 t/s prefill for 330k context. Prefill can reach 900-1000 t/s with longer prompts.…

TP4+DCP2 for a ~360k kV pool. Prefill increases to 900-1000 t/s with longer prompts. You can also run DCP4 for 660k, but prefill gets shaved to ~400. Dropping DCP raises prefil to ~750.

I'm running 4 drafted tokens vs Z.ai's rec of 5. Decode is heavily dependent on prose. Thinking gets ~20 tok/s. Code gets 25-35. Typical turns in Pi get me ~24 tok/s.

Pruning the model by 5-10% will probably get you to 1M ctx or more concurrency if you need that. In my daily use, a 10% data-free prune seems to preserve the model's coding capability, but it loses some adherence to instructions at the granular level.

2x Acer GN100 at 3799 each 2x Asus GX10 at 3499 each 1x Mikrotik CRS504 at $650 4x NADDOD QSFP56 DAC cables at $66 each (Can be replaced with QSFP28 for CRS504)

It's not fast or financially smart in a general sense, but it's viable. And I think if you want to run GLM locally, this is a better bet than the 512GB Mac Studio, which probably gets 12 tok/s decode (gets compute-bound) and 50 tok/s prefill.

Below is the benchmark result with llama-benchy, NL prose, so it's slower than a typical agentic workflow.

Depth Prefill (pp2048) Decode (tg512) 0 597.9 ± 6.4 21.7 ± 0.6 8k 602.6 ± 0.8 21.5 ± 0.8 32k 597.7 ± 0.2 21.8 ± 0.6 A short-ish turn in Pi

TopicsModel releaseOn-device
Keywords#running#4xgb10#switch#100g#330k#650
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