VR2R-0601
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Connecting GPUs in the Scale-Out InfiniBand Network - Line hint:
506
Context Before
To scale beyond the maximum cluster size of 93,312 GPUs, a 2-plane network can be deployed in which each of the two 800G OSFP cages supporting a GPU are linked to separate leaf switches on different network planes. This allows you to build a 186,624-GPU cluster size and even scale up to 746,496-GPU cluster sizes:
Evidence
(2\left(\frac{\frac{115{,}200}{800}}{2}\right)^3 = 2\left(\frac{144}{2}\right)^3 = 746,496)
Context After
We think the second cluster with two switch planes will likely be the more prevalent reference architecture for Vera Rubin NVL72 InfiniBand deployments.
② Atomic Claim
746,496 GPUs 的計算式為：(2\left(\frac{\frac{115{,}200}{800}}{2}\right)^3 = 2\left(\frac{144}{2}\right)^3 = 746,496)。
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": "formula for two-plane cluster-size example",
"numeric_mentions": [
"115,200",
"800",
"2",
"144",
"746,496"
],
"temporal_mentions": []
},
"reason": "MATHEMATICAL_EXPRESSION_FOR_CLUSTER_SIZE",
"statement": "2((115,200/800)/2)^3 = 2(144/2)^3 = 746,496"
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| — | — | — |
⑤ Human Review
請在 Properties 逐項確認：
- 原文 → Atomic Claim 是否忠實
- Atomic Claim → Semantic Frame 是否忠實
- Canonical Entity mapping 是否正確
- Epistemic mode 是否保留原文語氣
- 最後選擇
review_action
Review state
Markdown 內文不是正式 approval。只有 Apply bridge 寫入的 Decision Ledger event 才是正式決策。