atc-GPU — GPU Lab Infrastructure

Infrastructure-as-code and documentation for the ATC GPU Lab environment on VM303 (GPU-Dev).

Quick links

Service	URL
GPU Lab UI	http://10.0.20.106:9000/
Inference API (active runtime)	http://10.0.20.106:8010/v1/models
OpenAI gateway	http://10.0.20.106:8001/v1/models
Dockhand (GPU-Dev env)	http://atc-docker01.dell-atc.lan:8082/

Repository layout

atc-GPU/
├── README.md
├── docs/           # Landscape, models, runbooks, Dockhand mapping
├── config/         # gpu-lab compose + model-manager catalog (no secrets)
├── compose/        # Dockhand-safe compose variants
└── scripts/        # Helper scripts (activate-model)

Active target (2026-06)

• Runtime: SGLang (sglang-modern) via compose.sglang.yml
• Model: Qwen 3.6 27B AWQ (qwen36-27b-awq → served as qwen3.6-27b-awq)
• Previous: Llama3-70b-GPTQ on vLLM legacy (to be decommissioned after cutover)

See docs/runbook-vm303.md for activate/rollback steps.

Related repos

• mo/Lakehouse — Spark, Trino, Debezium, Airflow, S3 pipeline