SA260324R-0351_r1

SA260324R-0351

① SA Source

• Source: 開啟完整 SA 文章
• Section: NVL288 System
• Line hint: 448

Context Before

For the Vera Rubin Ultra NVL288 System that we discussed above, we would say the cable backplane return for Kyber.

Evidence

If Rubin Ultra is deployed in such a form factor – each of the Rubin Ultra GPUs will have a scale-up bandwidth of 14.4Tbit/s uni-di, requiring 144 DPs of cables to connect to the NVSwitches.

Context After

144 DPs times 288 GPUs means a total of 41,472 DPs to connect this larger world size domain. This is a lot of cables, so it is more of an upper bound of how much cable content could be used here. If there is oversubscription or if the inter-rack connection is made through the switches – it is possible fewer DPs would be needed.

② Atomic Claim

若 Rubin Ultra 以此 form factor 部署，每顆 Rubin Ultra GPU 將提供 14.4Tbit/s uni-di scale-up bandwidth，並需要 144 DP cable 連到 NVSwitch。

• Epistemic Mode: HYPOTHETICAL
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "04_knowledge_base/Rubin Ultra",
        "label": "Rubin Ultra"
      },
      "role": "platform"
    },
    {
      "node": {
        "id": "04_knowledge_base/GPU",
        "label": "GPU"
      },
      "role": "device"
    },
    {
      "node": {
        "id": "04_knowledge_base/14.4Tbit per second",
        "label": "14.4Tbit/s"
      },
      "role": "bandwidth"
    },
    {
      "node": {
        "id": "04_knowledge_base/NVSwitch",
        "label": "NVSwitch"
      },
      "role": "switch"
    }
  ],
  "qualifiers": {
    "condition_text": "hypothetical deployment; DP cable has no canonical entity",
    "numeric_mentions": [
      "14.4Tbit/s",
      "144"
    ],
    "temporal_mentions": []
  },
  "relation_type": "RUBIN_ULTRA_GPU_SCALEUP_CABLE_REQUIREMENT"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
platform	Rubin Ultra	04_knowledge_base/Rubin Ultra
device	GPU	GPU
bandwidth	14.4Tbit/s	04_knowledge_base/14.4Tbit per second
switch	NVSwitch	NVSwitch

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。