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Cerebrium

vLLM_plus_cerebrium

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

要安装 Cerebrium 客户端,请运行:

pip install cerebrium
cerebrium login

接下来,创建你的 Cerebrium 项目,运行:

cerebrium init vllm-project

接下来,安装所需的包,在你的 cerebrium.toml 中添加以下内容:

[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你选择的 LLM 的推理(本例中为 mistralai/Mistral-7B-Instruct-v0.1),将以下代码添加到你的 main.py 中:

Code
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)

    # 打印输出结果。
    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,运行以下命令将其部署到云端:

cerebrium deploy

如果部署成功,你将获得一个 CURL 命令,可用于调用推理服务。请记住在 URL 末尾添加你要调用的函数名(在本例中为 /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"
]
}'

你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
}

你现在拥有了一个自动扩展的端点,你只需为你使用的计算资源付费!