VR2R-0591
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Connecting GPUs in the Scale-Out InfiniBand Network - Line hint:
492
Context Before
The InfiniBand architecture for the HGX Rubin NVL8 server is therefore effectively a single-plane, 8-rail network consisting of one 800G uplink from each HGX Rubin NVL8 GPU to a leaf switch.
Evidence
For the Vera Rubin NVL72 deployment however, there are two 800G OSFP cages per GPU for a total of 1.6T per GPU bandwidth.
Context After
Having two 800G logical ports per GPU is advantageous because it allows multi-plane network deployments without complex fiber management—by splitting one logical GPU two ways to two different leaf switches. As such, larger network clusters can be built with two 800G logical ports than if only one 1.6T logical port were used.
② Atomic Claim
但在 Vera Rubin NVL72 deployment 中，每顆 GPU 有 2 個 800G OSFP cages，因此每顆 GPU 合計 bandwidth 為 1.6T。
- Epistemic Mode:
ASSERTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"frame_type": "NARY_RELATION",
"participants": [
{
"node": {
"id": "04_knowledge_base/Vera Rubin",
"label": "Vera Rubin"
},
"role": "platform"
},
{
"node": {
"id": "04_knowledge_base/GPU",
"label": "GPU"
},
"role": "processor"
}
],
"qualifiers": {
"condition_text": "OSFP cage is plain text",
"numeric_mentions": [
"2",
"800G",
"1.6T"
],
"temporal_mentions": []
},
"relation_type": "VERA_RUBIN_NVL72_DUAL_800G_OSFP_PER_GPU"
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| platform | Vera Rubin | 04_knowledge_base/Vera Rubin |
| processor | GPU | GPU |
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。