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enginex-ascend-910-vllm/docs/source/tutorials/models/Qwen3-VL-Embedding.md
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# Qwen3-VL-Embedding
## 1 Introduction
The Qwen3-VL-Embedding and Qwen3-VL-Reranker model series are the latest additions to the Qwen family, built upon the recently open-sourced and powerful Qwen3-VL foundation model. Specifically designed for multimodal information retrieval and cross-modal understanding, this suite accepts diverse inputs including text, images, screenshots, and videos, as well as inputs containing a mixture of these modalities. This guide describes how to run the model with vLLM Ascend.
## 2 Supported Features
Refer to [supported features](../../user_guide/support_matrix/supported_models.md) to get the model's supported feature matrix.
## 3 Prerequisites
### 3.1 Model Weight
- `Qwen3-VL-Embedding-8B` [Download model weight](https://www.modelscope.cn/models/Qwen/Qwen3-VL-Embedding-8B)
- `Qwen3-VL-Embedding-2B` [Download model weight](https://www.modelscope.cn/models/Qwen/Qwen3-VL-Embedding-2B)
It is recommended to download the model weight to the shared directory of multiple nodes, such as `/root/.cache/`
## 4 Installation
### 4.1 Docker Image Installation
You can use our official docker image to run `Qwen3-VL-Embedding` model directly.
Select an image based on your machine type and start the docker image on your node, refer to [using docker](../../installation.md#set-up-using-docker).
For Atlas 300I DUO, use `vllm-ascend:nightly-releases-v0.23.0-310p` (or a later `-310p` image).
:::::{tab-set}
:sync-group: install
::::{tab-item} A3 series
:sync: A3 series
```{code-block} bash
:substitutions:
export IMAGE=quay.io/ascend/vllm-ascend:|vllm_ascend_version|-a3
docker run --rm \
--name vllm-ascend \
--shm-size=1g \
--net=host \
--privileged=true \
--device /dev/davinci0 \
--device /dev/davinci_manager \
--device /dev/devmm_svm \
--device /dev/hisi_hdc \
-v /usr/local/dcmi:/usr/local/dcmi \
-v /usr/local/Ascend/driver/tools/hccn_tool:/usr/local/Ascend/driver/tools/hccn_tool \
-v /usr/local/bin/npu-smi:/usr/local/bin/npu-smi \
-v /usr/local/Ascend/driver/lib64/:/usr/local/Ascend/driver/lib64/ \
-v /usr/local/Ascend/driver/version.info:/usr/local/Ascend/driver/version.info \
-v /etc/ascend_install.info:/etc/ascend_install.info \
-v /root/.cache:/root/.cache \
-it $IMAGE bash
```
::::
::::{tab-item} A2 series
:sync: A2 series
```{code-block} bash
:substitutions:
export IMAGE=quay.io/ascend/vllm-ascend:|vllm_ascend_version|
docker run --rm \
--name vllm-ascend \
--shm-size=1g \
--net=host \
--privileged=true \
--device /dev/davinci0 \
--device /dev/davinci_manager \
--device /dev/devmm_svm \
--device /dev/hisi_hdc \
-v /usr/local/dcmi:/usr/local/dcmi \
-v /usr/local/Ascend/driver/tools/hccn_tool:/usr/local/Ascend/driver/tools/hccn_tool \
-v /usr/local/bin/npu-smi:/usr/local/bin/npu-smi \
-v /usr/local/Ascend/driver/lib64/:/usr/local/Ascend/driver/lib64/ \
-v /usr/local/Ascend/driver/version.info:/usr/local/Ascend/driver/version.info \
-v /etc/ascend_install.info:/etc/ascend_install.info \
-v /root/.cache:/root/.cache \
-it $IMAGE bash
```
::::
::::{tab-item} Atlas 300I DUO
:sync: Atlas 300I DUO
```{code-block} bash
:substitutions:
export IMAGE=quay.io/ascend/vllm-ascend:|vllm_ascend_version|-310p
docker run --rm \
--name vllm-ascend \
--shm-size=1g \
--net=host \
--privileged=true \
--device /dev/davinci0 \
--device /dev/davinci_manager \
--device /dev/devmm_svm \
--device /dev/hisi_hdc \
-v /usr/local/dcmi:/usr/local/dcmi \
-v /usr/local/Ascend/driver/tools/hccn_tool:/usr/local/Ascend/driver/tools/hccn_tool \
-v /usr/local/bin/npu-smi:/usr/local/bin/npu-smi \
-v /usr/local/Ascend/driver/lib64/:/usr/local/Ascend/driver/lib64/ \
-v /usr/local/Ascend/driver/version.info:/usr/local/Ascend/driver/version.info \
-v /etc/ascend_install.info:/etc/ascend_install.info \
-v /root/.cache:/root/.cache \
-it $IMAGE bash
```
::::
:::::
After a successful docker run, you can verify the running container service by executing the `docker ps` command.
### 4.2 Source Code Installation
If you don't want to use the docker image as above, you can also build all from source:
- Install `vllm-ascend` from source, refer to [installation](../../installation.md).
If you want to deploy multi-node environment, you need to set up environment on each node.
## 5 Online Service Deployment
:::::{tab-set}
:sync-group: Deployment
::::{tab-item} A3/A2 series
:sync: A3/A2 series
```{code-block} bash
:substitutions:
vllm serve Qwen/Qwen3-VL-Embedding-2B \
--served-model-name Qwen/Qwen3-VL-Embedding-2B \
--runner pooling \
--port 8000 \
--max-model-len 1024
```
::::
::::{tab-item} Atlas 300I DUO
:sync: Atlas 300I DUO
```{code-block} bash
:substitutions:
vllm serve Qwen/Qwen3-VL-Embedding-2B \
--served-model-name Qwen/Qwen3-VL-Embedding-2B \
--compilation-config '{"cudagraph_capture_sizes": [1024,512]}' \
--additional-config '{"ascend_compilation_config": {"fuse_norm_quant": false}}' \
--runner pooling \
--dtype float16 \
--port 8000 \
--max-model-len 1024
```
Required Parameter Descriptions:
`--compilation-config` For Atlas 300I DUO, due to limited hardware streams, the size of cudagraph_capture_sizes is restricted.
::::
:::::
Key Parameter Descriptions:
- `--max-model-len` represents the context length, which is the maximum value of the input plus output for a single request. For Atlas 300I DUO if automatic parsing resolves to a large context length, allocating this mask (O(max_model_len^2)) may exceed NPU memory and trigger OOM. Be sure to set an explicit and conservative value, such as --max-model-len 1024.
Common Issues Tip: If you encounter issues, please refer to the [Public FAQ](https://docs.vllm.ai/projects/ascend/en/latest/faqs.html) for troubleshooting.
## 6 Functional Verification
Once your server is started, you can verify by follow command:
Service Verification:
```bash
curl -X POST http://localhost:8000/v1/embeddings -H "Content-Type: application/json" -d '{
"input": [
"The capital of China is Beijing.",
"Gravity is a force that attracts two bodies towards each other. It gives weight to physical objects and is responsible for the movement of planets around the sun."
]
}'
```
Expected Result:
The service returns HTTP 200 OK with a JSON response containing the `embedding` field. Example output:
```json
{
"id": "embd-8136155c01e8411d",
"object": "list",
"created": 1784538286,
"model": "Qwen/Qwen3-VL-Embedding-2B",
"data": [
{
"index": 0,
"object": "embedding",
"embedding": [
-0.028474265709519386,
-0.02678542211651802
]
},
{
"index": 1,
"object": "embedding",
"embedding": [
-0.016785264015197754,
-0.003787524998188019
]
}
],
"usage": {
"prompt_tokens": 39,
"total_tokens": 39,
"completion_tokens": 0,
"prompt_tokens_details": null
}
}
```
For more usage examples, please reference the [examples](https://github.com/vllm-project/vllm/tree/main/examples/pooling/embed)
## 7 Accuracy Evaluation
Here are two accuracy evaluation methods.
### Using MTEB
1. Refer to [MTEB](https://docs.mteb.org/) for details.
2. Run follow code to execute the accuracy evaluation.
```python
import os
import mteb
from mteb.models.vllm_wrapper import VllmEncoderWrapper
if __name__ == "__main__":
data_path = "/home/data/mteb_data"
os.environ["HF_DATASETS_CACHE"] = data_path
os.environ["HF_ENDPOINT"] = "https://hf-mirror.com"
model = VllmEncoderWrapper(f"/root/.cache/Qwen3-VL-Embedding-2B",
revision="norm",
dtype="float16",
max_model_len=10240,
)
cache = mteb.ResultCache("/home/data/mteb_data")
tasks = mteb.get_tasks(tasks=["LeCaRDv2"])
results = mteb.evaluate(model, tasks=tasks, cache=cache, encode_kwargs={"batch_size": 2}, overwrite_strategy="always")
df = results.to_dataframe()
print(df)
```
3. After execution, you can get the result.
## 8 Performance Evaluation
### Using vLLM Benchmark
Run performance of `Qwen3-VL-Embedding-2B` as an example.
Refer to [vllm benchmark](https://docs.vllm.ai/en/latest/benchmarking/cli/) for more details.
Take the `serve` as an example. Run the code as follows.
```bash
vllm bench serve --model Qwen/Qwen3-VL-Embedding-2B --backend openai-embeddings --port 8000 --dataset-name random --endpoint /v1/embeddings --random-input 200 --save-result --result-dir ./
```
After about several minutes, you can get the performance evaluation result.
## 9 FAQ
For common environment, installation, and general parameter issues, please refer to the [Public FAQ](https://docs.vllm.ai/projects/ascend/en/latest/faqs.html).