VR2-0172
① SA Source
- Source: 開啟完整 SA 文章
- Section:
CPX Form Factor - Line hint:
229
Context Before
VR NVL72 CPX (Dual Rack): Rubin CPX deployed in a separate rack alongside the VR NVL72 rack
Evidence
A dual-rack approach allows hyperscalers to scale prefill and decode capacity independently, optimize datacenter power envelopes, and reduce system-level failure domains versus tightly coupled trays
Context After
Rubin CPX was originally architected as a GDDR7-based accelerator optimized for prefill, based on three key considerations:
② Atomic Claim
Dual-rack 架構讓 hyperscalers 可以獨立擴充 prefill 與 decode capacity、最佳化 datacenter power envelope，並相較 tightly coupled trays 降低 system-level failure domains。
- Epistemic Mode:
ASSERTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"comparison_expression": "Dual-rack 架構讓 hyperscalers 可以獨立擴充 prefill 與 decode capacity、最佳化 datacenter power envelope，並相較 tightly coupled trays 降低 system-level failure domains。",
"entities": [
{
"id": "04_knowledge_base/Hyperscaler",
"label": "hyperscalers"
},
{
"id": "04_knowledge_base/Prefill",
"label": "prefill"
},
{
"id": "04_knowledge_base/Decode",
"label": "decode"
}
],
"frame_type": "COMPARISON",
"metric": "CAPACITY",
"operator": "COMPARES_WITH",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| comparison_entity_0 | hyperscalers | Hyperscaler |
| comparison_entity_1 | prefill | Prefill |
| comparison_entity_2 | decode | Decode |
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。