SA260324R-0264
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Rubin Ultra NVL576 - Line hint:
326
Context Before
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.
Evidence
Rubin Ultra NVL576 is now on the roadmap with 8 racks of lower density Oberon.
Context After
Optics will be required for the inter-rack connections, though strictly speaking it isn’t confirmed whether this will be with pluggable optics or with CPO, though CPO seems much more likely. The current Blackwell NVL576 prototype “Polyphe” uses pluggable optics.
② Atomic Claim
Rubin Ultra NVL576 現已列入 roadmap，配置 8 個密度較低的 Oberon rack。
- Epistemic Mode:
ASSERTED - 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/NVL576",
"label": "NVL576"
},
"role": "system"
}
],
"qualifiers": {
"condition_text": "Oberon 在此 atomic claim 未 canonical-link；8 racks are lower density Oberon",
"numeric_mentions": [
"8",
"576"
],
"temporal_mentions": [
"現已"
]
},
"relation_type": "ROADMAP_CONFIGURATION"
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| platform | Rubin Ultra | 04_knowledge_base/Rubin Ultra |
| system | NVL576 | NVL576 |
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。