Skip to main content

使用 Cerebrium 进行部署

图片

vLLM 可以通过 Cerebrium 在基于云的 GPU 计算机上运行,​​这是一个无服务器的 AI 基础设施平台,使公司可以更轻松地构建和部署基于 AI 的应用程序。

如需安装 Cerebrium 客户端,请运行:

pip install cerebrium
cerebrium login

接下来,运行以下命令来创建您的 Cerebrium 项目:

cerebrium init vllm-project

接下来,安装所需的软件包,请将以下内容添加到 cerebrium.toml 中:

[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 (本例为 mistralai/Mistral-7B-Instruct-v0.1),将以下代码添加到您的 main.py:

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.


# 打印输出。


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

如果部署成功,您应该得到一个 CURL 命令返回,您可以根据该命令进行推理。只需记住以您正在调用的函数名称结束 url(在我们的例子中为 /run):

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"
]
}'

您应该得到如下响应:

{
"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
}

您现在拥有了一个自动扩充端点,而您只需为您使用的计算资源付费!