SA260324R-0238_r1

SA260324R-0238

① SA Source

• Source: 開啟完整 SA 文章
• Section: Oberon and Kyber Updates, Larger World Sizes Introduced, More Networking Updates
• Line hint: 298

Context Before

Moving back to the Kyber Rack, each Rubin Ultra logical GPU offers 14.4Tbit/s uni-di of scale-up bandwidth, using an 80DP connector (72 DPs used x 200Gbit/s bi-di channel = 14.4Tbit/s) per GPU for connectivity to the midplane board. Connecting all 144 GPUs in an all-to-all network will require 72 NVLink 7.0 Switch Chips running at 28.8Tbit/s uni-di of aggregate bandwidth each.

Evidence

In the Kyber Switch Blade picture below, we can see that there are 2 separate PCBs carrying 3 Switches each.

Context After

The switch blade should have 6 152DP connectors, 3 connectors serving each midplane board. The picture is a prototype blade using less dense connectors, which is why there are 12 connectors instead of the 6 that we expect in the production version.

② Atomic Claim

從 Kyber switch-blade 圖片可看到兩片獨立 PCB，每片承載 3 顆 switch。

• Epistemic Mode: ASSERTED
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "attribute": "SWITCH_BLADE_PCB_CONFIGURATION",
  "context_nodes": [],
  "entity": {
    "id": "04_knowledge_base/NVIDIA Kyber Rack",
    "label": "Kyber"
  },
  "frame_type": "ATTRIBUTE",
  "qualifiers": {
    "condition_text": "switch blade、PCB、switch 在此 atomic claim 未 canonical-link",
    "numeric_mentions": [
      "2",
      "3"
    ],
    "temporal_mentions": []
  },
  "value": {
    "numeric_mentions": [
      "2",
      "3"
    ],
    "value_text": "switch blade 有 2 片獨立 PCB，每片 3 顆 switch。"
  }
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
entity	Kyber	04_knowledge_base/NVIDIA Kyber Rack

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。