clm_cd12bb2976274587b6c5c34699af058f_r1

NIEK2-0260

① SA Source

• Source: 開啟完整 SA 文章
• Section: Rubin Ultra NVL576
• Line hint: 321

Context Before

All current evidence in the supply chain points to NVSwitch 7 being the same bandwidth as NVSwitch 6, but that is seems a bit illogical to be frank. Our belief is that NVSwitch 7 is actually 2x the bandwidth and radix of NVSwitch 6, so all-to-all can be done, and architecturally that makes the most sense from a systems perspective.

Rubin Ultra NVL576

Evidence

To push the scale up world size beyond 144 GPUs and across multiple racks, optics are needed as we are approaching the maximum compute density that is within the reach of copper

Context After

Source: SemiAnalysis

② Atomic Claim

若要把 scale-up world size 擴展到超過 144 顆 GPUs 並跨越多個機櫃，就需要 optics，因為系統已接近 copper 可涵蓋的最大運算密度。

• Epistemic Mode: HYPOTHETICAL
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "attribute": "COUNT",
  "context_nodes": [
    {
      "id": "04_knowledge_base/Copper",
      "label": "copper"
    }
  ],
  "entity": {
    "id": "04_knowledge_base/GPU",
    "label": "GPUs"
  },
  "frame_type": "ATTRIBUTE",
  "qualifiers": {
    "condition_text": null,
    "numeric_mentions": [
      "144"
    ],
    "temporal_mentions": []
  },
  "value": {
    "numeric_mentions": [
      "144"
    ],
    "value_text": "若要把 scale-up world size 擴展到超過 144 顆 GPUs 並跨越多個機櫃，就需要 optics，因為系統已接近 copper 可涵蓋的最大運算密度。"
  }
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
entity	GPUs	GPU
context_0	copper	Copper

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。