# Running DeepSeek-R1 Disaggregated with WideEP on GB200s
Dynamo supports SGLang's GB200 implementation of wide expert parallelism and large scale P/D for DeepSeek-R1! You can read their blog post [here](https://lmsys.org/blog/2025-06-16-gb200-part-1/) for more details. We provide a Dockerfile for this in `container/Dockerfile.sglang-wideep` and a sample configuration that demonstrates WideEP and P/D disaggregation. To run the exact configuration shown in the blog post, you can view the commands created by the SGLang team [here](https://github.com/sgl-project/sglang/issues/7227). In this example, we will run 1 prefill worker on 2 GB200 nodes (4 GPUs each) and 1 decode worker on 2 GB200 nodes (total 8 GPUs).
Dynamo supports SGLang's GB200 implementation of wide expert parallelism and large scale P/D for DeepSeek-R1! You can read their blog post [here](https://lmsys.org/blog/2025-06-16-gb200-part-1/) for more details. We provide a sample configuration that demonstrates WideEP and P/D disaggregation. To run the exact configuration shown in the blog post, you can view the commands created by the SGLang team [here](https://github.com/sgl-project/sglang/issues/7227). In this example, we will run 1 prefill worker on 2 GB200 nodes (4 GPUs each) and 1 decode worker on 2 GB200 nodes (total 8 GPUs).
## Instructions
1. Build the Dynamo container using the latest published dynamo version and stable sglang version. If you want to build from a local dynamo repo, you can add `--build-arg BRANCH_TYPE=local` to the build command. If you want to build from a remote dynamo repo, you can add `--build-arg BRANCH_TYPE=remote` to the build command. If you want to use a specific tag for the default sglang version, you can add `--build-arg SGLANG_IMAGE_TAG=<tag>` to the build command.
1. Build the Dynamo container for ARM64 (GB200) using the `build.sh` script.
> [!Note]
> Please ensure that you are building this on an ARM64 machine. The correct SGLang image will be selected automatically via the multi-arch manifest.
> [!Note]
> Please use `--build-arg SGLANG_IMAGE_TAG=nightly-dev-20251019-fda0cb2a` to build the container due to a bug that we found with the DeepEP version being installed. This was fixed in [PR 11773](https://github.com/sgl-project/sglang/pull/11773). When SGLang releases a version > `0.5.3.post3` we will update these instructions.
> Please ensure that you are building this on an ARM64 machine. The build script will automatically configure the correct platform and build arguments for SGLang on ARM64/GB200.
# Running DeepSeek-R1 Disaggregated with WideEP on H100s
Dynamo supports SGLang's implementation of wide expert parallelism and large scale P/D for DeepSeek-R1! You can read their blog post [here](https://lmsys.org/blog/2025-05-05-large-scale-ep/) for more details. We provide a Dockerfile for this in `container/Dockerfile.sglang-wideep` and a sample configuration that demonstrates WideEP and P/D disaggregation. To run the exact configuration shown in the blog post, you can view the commands created by the SGLang team [here](https://github.com/sgl-project/sglang/issues/6017). In this example, we will run 1 prefill worker on 4 H100 nodes and 1 decode worker on 4 H100 nodes (64 total GPUs).
Dynamo supports SGLang's implementation of wide expert parallelism and large scale P/D for DeepSeek-R1! You can read their blog post [here](https://lmsys.org/blog/2025-05-05-large-scale-ep/) for more details. We provide a sample configuration that demonstrates WideEP and P/D disaggregation. To run the exact configuration shown in the blog post, you can view the commands created by the SGLang team [here](https://github.com/sgl-project/sglang/issues/6017). In this example, we will run 1 prefill worker on 4 H100 nodes (32 GPUs each) and 1 decode worker on 4 H100 nodes (total 64 GPUs).
## Instructions
1. Build the Dynamo container using the latest published dynamo version and stable sglang version. If you want to build from a local dynamo repo, you can add `--build-arg BRANCH_TYPE=local` to the build command. If you want to build from a remote dynamo repo, you can add `--build-arg BRANCH_TYPE=remote` to the build command. If you want to use a specific tag for the default sglang version, you can add `--build-arg SGLANG_IMAGE_TAG=<tag>` to the build command.
1. Build the Dynamo container for AMD64/x86_64 (H100) using the `build.sh` script.
> [!Note]
> Please ensure that you are building this on an AMD64 (x86_64) machine. The correct SGLang image will be selected automatically via the multi-arch manifest.
> Please ensure that you are building this on an AMD64 (x86_64) machine. The build script will automatically configure the correct platform for SGLang.
```bash
cd$DYNAMO_ROOT
docker build \
-f container/Dockerfile.sglang-wideep \
-t dynamo-wideep \
--no-cache\
.
./container/build.sh \
--framework SGLANG \
--tag dynamo-wideep:latest \
```
2. You can run this container on each 8xH100 node using the following command.
You can use a specific tag from the [lmsys dockerhub](https://hub.docker.com/r/lmsysorg/sglang/tags) by adding `--build-arg SGLANG_IMAGE_TAG=<tag>` to the build command.
