Cerebrium

vLLM 可以在基于云的 GPU 机器上运行，借助 Cerebrium 平台，这是一个无服务器人工智能基础设施平台，可帮助公司更轻松地构建和部署基于人工智能的应用程序。

要安装 Cerebrium 客户端，请运行

pip install cerebrium
cerebrium login

接下来，创建您的 Cerebrium 项目，运行

cerebrium init vllm-project

接下来，要安装所需的包，请将以下内容添加到您的 cerebrium.toml

[cerebrium.deployment]
docker_base_image_url = "nvidia/cuda:12.1.1-runtime-ubuntu22.04"

[cerebrium.dependencies.pip]
vllm = "latest"

接下来，让我们添加代码来处理您选择的 LLM 的推理（本例中使用 mistralai/Mistral-7B-Instruct-v0.1），将以下代码添加到您的 main.py 中

代码

from vllm import LLM, SamplingParams

llm = LLM(model="mistralai/Mistral-7B-Instruct-v0.1")

def run(prompts: list[str], temperature: float = 0.8, top_p: float = 0.95):

    sampling_params = SamplingParams(temperature=temperature, top_p=top_p)
    outputs = llm.generate(prompts, sampling_params)

    # Print the outputs.
    results = []
    for output in outputs:
        prompt = output.prompt
        generated_text = output.outputs[0].text
        results.append({"prompt": prompt, "generated_text": generated_text})

    return {"results": results}

然后，运行以下代码将其部署到云端

cerebrium deploy

如果成功，您将收到一个 CURL 命令，可以对其进行推理调用。请记住在 URL 末尾加上您正在调用的函数名（本例中是 /run）

命令

curl -X POST https://api.cortex.cerebrium.ai/v4/p-xxxxxx/vllm/run \
-H 'Content-Type: application/json' \
-H 'Authorization: <JWT TOKEN>' \
--data '{
"prompts": [
    "Hello, my name is",
    "The president of the United States is",
    "The capital of France is",
    "The future of AI is"
]
}'

您应该会收到如下响应

响应

{
    "run_id": "52911756-3066-9ae8-bcc9-d9129d1bd262",
    "result": {
        "result": [
            {
                "prompt": "Hello, my name is",
                "generated_text": " Sarah, and I'm a teacher. I teach elementary school students. One of"
            },
            {
                "prompt": "The president of the United States is",
                "generated_text": " elected every four years. This is a democratic system.\n\n5. What"
            },
            {
                "prompt": "The capital of France is",
                "generated_text": " Paris.\n"
            },
            {
                "prompt": "The future of AI is",
                "generated_text": " bright, but it's important to approach it with a balanced and nuanced perspective."
            }
        ]
    },
    "run_time_ms": 152.53663063049316
}

您现在拥有一个自动伸缩的端点，只需为您使用的计算付费！