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docs/zh/get_started/ernie-4.5.md
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docs/zh/get_started/ernie-4.5.md
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# ERNIE-4.5模型
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本文档讲解如何部署ERNIE-4.5模型,在开始部署前,请确保你的硬件环境满足如下条件:
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- GPU驱动 >= 535
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- CUDA >= 12.3
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- CUDNN >= 9.5
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- Linux X86_64
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- Python >= 3.10
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- 80G A/H 4卡
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安装FastDeploy方式参考[安装文档](./installation/README.md)。
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## 准备模型
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部署时指定 ```--model baidu/ERNIE-4.5-300B-A47B-Paddle``` 即可自动从AIStudio下载模型,并支持断点续传。你也可以自行从不同渠道下载模型,需要注意的是FastDeploy依赖Paddle格式的模型,更多说明参考[支持模型列表](../supported_models.md)。
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## 启动服务
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>💡 **注意**: 由于模型参数量为300B-A47B,在80G * 8卡的机器上,需指定 ```--quantization wint4``` (wint8也可部署,其中wint4 4卡即可部署,wint8则需要8卡)。
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执行如下命令,启动服务,其中启动命令配置方式参考[参数说明](../parameters.md)。
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```shell
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python -m fastdeploy.entrypoints.openai.api_server \
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--model baidu/ERNIE-4.5-300B-A47B-Paddle \
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--port 8180 --engine-worker-queue-port 8181 \
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--cache-queue-port 8182 --metrics-port 8182 \
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--tensor-parallel-size 8 \
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--quantization wint4 \
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--max-model-len 32768 \
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--max-num-seqs 32
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```
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## 用户发起服务请求
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执行启动服务指令后,当终端打印如下信息,说明服务已经启动成功。
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```shell
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api_server.py[line:91] Launching metrics service at http://0.0.0.0:8181/metrics
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api_server.py[line:94] Launching chat completion service at http://0.0.0.0:8180/v1/chat/completions
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api_server.py[line:97] Launching completion service at http://0.0.0.0:8180/v1/completions
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INFO: Started server process [13909]
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INFO: Waiting for application startup.
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INFO: Application startup complete.
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INFO: Uvicorn running on http://0.0.0.0:8180 (Press CTRL+C to quit)
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```
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FastDeploy提供服务探活接口,用以判断服务的启动状态,执行如下命令返回 ```HTTP/1.1 200 OK``` 即表示服务启动成功。
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```shell
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curl -i http://0.0.0.0:8180/health
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```
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通过如下命令进行服务请求。
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```shell
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curl -X POST "http://0.0.0.0:8180/v1/chat/completions" \
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-H "Content-Type: application/json" \
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-d '{
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"messages": [
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{"role": "user", "content": "把李白的静夜思改写为现代诗"}
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]
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}'
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```
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FastDeploy服务接口兼容OpenAI协议,可以通过如下Python代码发起服务请求。
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```python
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import openai
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host = "0.0.0.0"
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port = "8180"
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client = openai.Client(base_url=f"http://{host}:{port}/v1", api_key="null")
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response = client.chat.completions.create(
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model="null",
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messages=[
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{"role": "system", "content": "I'm a helpful AI assistant."},
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{"role": "user", "content": "把李白的静夜思改写为现代诗"},
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],
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stream=True,
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)
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for chunk in response:
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if chunk.choices[0].delta:
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print(chunk.choices[0].delta.content, end='')
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print('\n')
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```
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