DGX Spark 上的 vLLM 和 TRT LLM

NVFP4 Quantization 支援度不好，目前成功的如下:

DeepSeek-R1-Distill-Llama-8B

Qwen3-4B-Instruct-2507

chatgpt 說 Qwen3-xB-AxxB 的都不行, 不能有 AxxB

比較 gpt-oss-20b 和 gpt-oss-120b

trtllm 確實比 vllm 省記憶體，且速度快

DGX Spark 之溫度監測

$ sudo apt-get install lm-sensors

$ sudo sensors-detect

會問很多問題，通常回 YES

$ sudo apt-get install psensors

$ psensors

$ sudo apt-get install gnome-shell-extension-manager

$ sudo apt-get install chrome-gnome-shell

$ sudo apt-get install gnome-browser-connector

不要使用 chromium, 直接使用 firefox

firefox 開啟 https://extensions.gnome.org

安裝 GNOME Shell integration extension

搜尋 Vitals 安裝

DGX Spark 之 vLLM 安裝測試

$ curl -LsSf https://hf.co/cli/install.sh | bash

$ hf download openai/gpt-oss-20b --local-dir ./models/gpt-oss-20b

$ docker pull nvcr.io/nvidia/vllm:25.11-py3

$ docker run -it --gpus all -p 8000:8000 \

-v /mnt/models:/models \

nvcr.io/nvidia/vllm:25.11-py3 \

vllm serve "/models/gpt-oss-20b" \

--served-model-name llm_chat \

--api-key token-abc123

$ curl http://localhost:8000/v1/chat/completions \

-H "Content-Type: application/json" \

-H "Authorization: Bearer token-abc123" \

-d '{

    "model": "llm_chat",

    "messages": [{"role": "user", "content": "你好，請自我介紹"}],

    "max_tokens": 500

}'

為了避免出現 out-of-memory (OOM)

$ sudo sh -c 'sync; echo 3 > /proc/sys/vm/drop_caches'

ubuntu 之 nfs server 和 client

A 主機

$ sudo apt update

$ sudo apt install -y nfs-kernel-server

$ sudo vi /etc/exports

/mnt/Data/models 192.168.1.20(ro,sync,no_subtree_check)

ro：只讀（強烈建議，避免模型被誤寫）

sync：資料一致性

no_subtree_check：效能與穩定性

/mnt/Data/models 192.168.1.20(ro,all_squash,anonuid=1000,anongid=1000,sync,no_subtree_check)

all_squash：所有 client user 都映射成 anonymous

anonuid/anongid：指定成某個 UID/GID

$ sudo exportfs -ra

$ sudo systemctl restart nfs-kernel-server

$ showmount -e localhost

B 主機

$ sudo apt update

$ sudo apt install -y nfs-common

$ sudo mkdir -p /mnt/models

$ sudo mount -t nfs 192.168.1.10:/mnt/Data/models /mnt/models

$ ls /mnt/models

$ sudo vi /etc/fstab

192.168.1.10:/mnt/Data/models  /mnt/models  nfs  ro,_netdev,auto  0  0

DGX Spark 安裝 Text to Knowledge Graph

安裝 Text to Knowledge Graph

參考 https://build.nvidia.com/spark/txt2kg/instructions

$ git clone https://github.com/NVIDIA/dgx-spark-playbooks

$ cd dgx-spark-playbook/nvidia/txt2kg/assets

$ ./start.sh

瀏覽器 http://localhost:3001

$ ./stop.sh

因為同時使用了 Open WebUI with Ollama docker, 切換 compose_ollama_data 到 open-webui-ollama

$ docker volume ls

$ docker volume inspect compose_ollama_data

[

    {

        "CreatedAt": "2025-12-19T14:38:37+08:00",

        "Driver": "local",

        "Labels": {

            "com.docker.compose.config-hash": "b60a4e44fe9b008057f3eaff8c4477427e0db99c0c9a70285f81b92ba016830d",

            "com.docker.compose.project": "compose",

            "com.docker.compose.version": "2.40.0",

            "com.docker.compose.volume": "ollama_data"

        },

        "Mountpoint": "/var/lib/docker/volumes/compose_ollama_data/_data",

        "Name": "compose_ollama_data",

        "Options": null,

        "Scope": "local"

    }

]

$ cd dgx-spark-playbooks/nvidia/txt2kg/assets/deploy/compose

$ cp docker-compose.yml docker-compose.yml.bak

$ vi docker-compose.yml

將

  ollama:

    volumes:

      - ollama_data:/root/.ollama

改成

  ollama:

    volumes:

      - open-webui-ollama:/root/.ollama

將

volumes:

  ollama_data:

改成

volumes:

  open-webui-ollama:

    external: true

查詢 ollama-compose docker 目前使用的 volume

$ docker inspect ollama-compose --format '{{ json .Mounts }}'

把 volume 掛進暫時容器，並清空內容

$ docker run --rm \

  -v compose_ollama_data:/data \

  alpine \

  sh -c "rm -rf /data/*"

確保沒有容器在用

$ docker ps -a --filter volume=compose_ollama_data

刪除 volume

docker volume rm compose_ollama_data

$ export OLLAMA_MODEL=gpt-oss:20b

$ docker exec ollama-compose ollama list

$ docker exec ollama-compose ollama pull gpt-oss:20b

DGX Spark 安裝 NVIDIA Sync 之 terminal

出現錯誤

Bad permissions. Try removing permissions for user: UNKNOWN\\UNKNOWN (S-1-15-3-1024-3299255270-1847605585-2201808924-710406709-3613095291-873286183-3101090833-2655911836) on file C:/Users/xxx/AppData/Local/NVIDIA Corporation/Sync/config/ssh_config.

Bad owner or permissions on C:/Users/xxx/AppData/Local/NVIDIA Corporation/Sync/config/ssh_config

用 powershell 執行

takeown /f "C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\ssh_config"

icacls "C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\ssh_config" /inheritance:r

icacls "C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\ssh_config" /grant xxx:F

用下列命令確認

icacls "C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\ssh_config"

C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\ssh_config ThinkPad-E000\xxx:(F)

出現錯誤

Bad permissions. Try removing permissions for user: UNKNOWN\\UNKNOWN (S-1-15-3-1024-3299255270-1847605585-2201808924-710406709-3613095291-873286183-3101090833-2655911836) on file C:/Users/xxx/AppData/Local/NVIDIA Corporation/Sync/config/nvsync.key.

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

Permissions for 'C:\\Users\\xxx\\AppData\\Local\\NVIDIA Corporation\\Sync\\config\\nvsync.key' are too open.

It is required that your private key files are NOT accessible by others.

This private key will be ignored.

Load key "C:\\Users\\xxx\\AppData\\Local\\NVIDIA Corporation\\Sync\\config\\nvsync.key": bad permissions

spark@gx10-spark.local's password:

用 powershell 執行

takeown /f "C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\nvsync.key"

icacls "C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\nvsync.key" /inheritance:r

icacls "C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\nvsync.key" /grant xxx:F

用下列命令確認

icacls "C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\nvsync.key"

C:\Users\xxx\AppData\Local\NVIDIA Corporation\Sync\config\nvsync.key ThinkPad-000\xxx:(F)

jetson orin 安裝 vLLM

https://hackmd.io/@johnnynunez/S1vJlvThee

https://pypi.jetson-ai-lab.io/jp6/cu126

$ uv init uv_vllm

$ cd uv_vllm

$ rm .python-version

$ vi pyproject.toml

requires-python = "==3.10.*"

$ uv venv --python 3.10

$ uv add --no-cache https://pypi.jetson-ai-lab.io/jp6/cu126/+f/62a/1beee9f2f1470/torch-2.8.0-cp310-cp310-linux_aarch64.whl#sha256=62a1beee9f2f147076a974d2942c90060c12771c94740830327cae705b2595fc

$ uv add --no-cache https://pypi.jetson-ai-lab.io/jp6/cu126/+f/81a/775c8af36ac85/torchaudio-2.8.0-cp310-cp310-linux_aarch64.whl#sha256=81a775c8af36ac859fb3f4a1b2f662d5fcf284a835b6bb4ed8d0827a6aa9c0b7

$ uv add --no-cache https://pypi.jetson-ai-lab.io/jp6/cu126/+f/907/c4c1933789645/torchvision-0.23.0-cp310-cp310-linux_aarch64.whl#sha256=907c4c1933789645ebb20dd9181d40f8647978e6bd30086ae7b01febb937d2d1

$ uv add --no-cache https://pypi.jetson-ai-lab.io/jp6/cu126/+f/9da/4bcb8e8f0eba0/triton-3.4.0-cp310-cp310-linux_aarch64.whl#sha256=9da4bcb8e8f0eba00a097ad8c57b26102add499e520d67fb2d5362bebf976ca3

$ uv add --no-cache https://pypi.jetson-ai-lab.io/jp6/cu126/+f/014/eff8ba676c7a3/bitsandbytes-0.47.0.dev0-cp310-cp310-linux_aarch64.whl#sha256=014eff8ba676c7a3830b9430744115af50790d2f7ff1b57f155a8839bcc39104

避免資源耗盡

$ ulimit -v

unlimited

$ ulimit -v $((26*1024*1024)) # 26GB

$ export MAX_JOBS=6

$ export TORCH_CUDA_ARCH_LIST="8.6;8.7"

$ export TRITON_PTXAS_PATH=/usr/local/cuda-12.6/bin/ptxas

$ export PATH=/usr/local/cuda-12.6/bin:$PATH

$ export LD_LIBRARY_PATH=/usr/local/cuda-12.6/lib64:$LD_LIBRARY_PATH

$ git clone --recursive https://github.com/vllm-project/vllm.git

$ cd vlm

$ git checkout v0.11.0

$ python3 use_existing_torch.py

$ uv pip install -r requirements/build.txt

不要直接安裝，雖然可以成功，但無法使用，懷疑是 vlm 目錄名稱會和 python package 衝突，也無法隨意改名

$ uv pip install --no-build-isolation -e .

改建立 wheel

$ uv build --no-build-isolation --wheel

$ cd ..

$ mv vllm vllm_v0.11.0

$ uv remove vllm

$ uv add vllm_v0.11.0/dist/vu add vllm_v0.11.0/dist/vllm-0.11.1.dev0+gb8b302cde.d20251214.cu126-cp310-cp310-linux_aarch64.whl

$ uv pip list

$ uv run python -c "import vllm; print(vllm.__version__)"

rm -rf build dist *.egg-info

find . -name "*.so" -delete

uv cache clean

rm -rf ~/.cache/torch_extensions

$ uv run vllm serve "/mnt/Data/LangGraph/HuggingFace/models/Qwen3-4B-Instruct-2507" --trust_remote_code --tensor-parallel-size 1 --max-model-len 20k --max-num-seqs 16 --gpu-memory-utilization 0.6 --quantization bitsandbytes --api-key token-abc123

可用的 --quantization ['awq', 'deepspeedfp', 'tpu_int8', 'fp8', 'ptpc_fp8', 'fbgemm_fp8', 'modelopt', 'modelopt_fp4', 'bitblas', 'gguf', 'gptq_marlin_24', 'gptq_marlin', 'gptq_bitblas', 'awq_marlin', 'gptq', 'compressed-tensors', 'bitsandbytes', 'hqq', 'experts_int8', 'ipex', 'quark', 'moe_wna16', 'torchao', 'auto-round', 'rtn', 'inc', 'mxfp4', 'petit_nvfp4']

測試可用的 quantization [bitsandbytes fp8 experts_int8]