SA260324R-0288::SPLIT03

回到這篇 SA Coverage

① SA Source

Context Before

Source: SemiAnalysis

Each Vera ETL rack consists of 32 compute trays, 16 above and 16 below, arranged symmetrically around four 1U MGX ETL switch trays (based on Spectrum-6) in the middle. The symmetric split is deliberate: it minimizes cable length variance between compute trays and the spine, keeping all connections within copper reach. From each switch tray, rear-facing ports connect to that copper spine for intra-rack communication, while 32 front-facing OSFP cages provide optical connectivity to the rest of the POD.

Evidence

Networking within the rack uses a Spectrum-X multiplane topology, distributing 200 Gb/s lanes across the four switches to achieve full all-to-all connectivity while maintaining a single network tier. With each compute tray housing 8 Vera CPUs, the result is 256 CPUs per rack, all interconnected over Ethernet through a single, flat network.

Context After

image

Source: SemiAnalysis

② Atomic Claim

Vera ETL rack 內的 CPU 透過 Ethernet 以單一 flat network 互連。

  • Epistemic Mode: ASSERTED
  • Mapping Status: COMPLETE

③ Semantic Frame

{
  "additional_nodes": [
    {
      "id": "04_knowledge_base/CPU",
      "label": "CPU"
    }
  ],
  "frame_type": "RELATION",
  "object": {
    "id": "04_knowledge_base/Ethernet",
    "label": "Ethernet"
  },
  "predicate": "INTERCONNECTS_CPUS_WITH",
  "qualifiers": {
    "condition_text": "single flat network",
    "numeric_mentions": [],
    "temporal_mentions": []
  },
  "subject": {
    "id": "04_knowledge_base/Vera ETL256",
    "label": "Vera ETL256"
  }
}

④ Canonical Entity Mapping

RoleSurface LabelCanonical Target
subjectVera ETL25604_knowledge_base/Vera ETL256
objectEthernetEthernet
additional_0CPUCPU

⑤ V2 Draft(需要修正時直接編輯)

Inline repair

只編輯以下三個 Draft 區塊。完成後將 review_action 設為 REQUEST_REPAIR,再手動執行 Repair Preview。
執行腳本前,Draft 不會寫入 Claim Store 或 Graph。

V2 Atomic Claim Draft

Vera ETL rack 內的 CPU 透過 Ethernet 以單一 flat network 互連。

V2 Semantic Frame Draft

{
  "additional_nodes": [
    {
      "id": "04_knowledge_base/CPU",
      "label": "CPU"
    }
  ],
  "frame_type": "RELATION",
  "object": {
    "id": "04_knowledge_base/Ethernet",
    "label": "Ethernet"
  },
  "predicate": "INTERCONNECTS_CPUS_WITH",
  "qualifiers": {
    "condition_text": "single flat network",
    "numeric_mentions": [],
    "temporal_mentions": []
  },
  "subject": {
    "id": "04_knowledge_base/Vera ETL256",
    "label": "Vera ETL256"
  }
}

V2 Revision Metadata Draft

{
  "epistemic_mode": "ASSERTED",
  "mapping_status": "COMPLETE"
}

⑥ 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。