---
id: pr-sglang-12065
repo: sgl-project/sglang
pr: 12065
title: (1/n)support context parallel with deepseekv3.2-DSA
author: lixiaolx
date: '2025-11-17'
url: https://github.com/sgl-project/sglang/pull/12065
source_category: upstream-code
architectures:
- sm100
tags:
- attention
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- cuda-cpp
- python
captured_at: '2026-04-27'
status: merged
merge_sha: d368c7451a48f2c58aa19e6f20a5725296094551
inclusion_reason: kernel file changes
changed_paths:
- docs/advanced_features/server_arguments.md
- docs/basic_usage/deepseek_v32.md
- python/sglang/srt/distributed/device_communicators/pynccl.py
- python/sglang/srt/distributed/parallel_state.py
- python/sglang/srt/layers/attention/nsa/nsa_indexer.py
- python/sglang/srt/layers/attention/nsa/utils.py
- python/sglang/srt/layers/attention/nsa_backend.py
- python/sglang/srt/layers/communicator_nsa_cp.py
- python/sglang/srt/layers/dp_attention.py
- python/sglang/srt/managers/schedule_policy.py
- python/sglang/srt/model_executor/cuda_graph_runner.py
- python/sglang/srt/model_executor/forward_batch_info.py
- python/sglang/srt/models/deepseek_nextn.py
- python/sglang/srt/models/deepseek_v2.py
- python/sglang/srt/server_args.py
- test/srt/run_suite.py
- test/srt/test_deepseek_v32_cp_single_node.py
head_ref_oid: d1cff4239a2eb9490b60197d20411be869e6c1be
artifact_dir: evidence/pull-bundles/sglang/gh-12065
---
# (1/n)support context parallel with deepseekv3.2-DSA

- Repository: `sgl-project/sglang`
- PR: [12065](https://github.com/sgl-project/sglang/pull/12065)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `docs/advanced_features/server_arguments.md`
- `docs/basic_usage/deepseek_v32.md`
- `python/sglang/srt/distributed/device_communicators/pynccl.py`
- `python/sglang/srt/distributed/parallel_state.py`
- `python/sglang/srt/layers/attention/nsa/nsa_indexer.py`
- `python/sglang/srt/layers/attention/nsa/utils.py`
- `python/sglang/srt/layers/attention/nsa_backend.py`
- `python/sglang/srt/layers/communicator_nsa_cp.py`
- `python/sglang/srt/layers/dp_attention.py`
- `python/sglang/srt/managers/schedule_policy.py`
- `python/sglang/srt/model_executor/cuda_graph_runner.py`
- `python/sglang/srt/model_executor/forward_batch_info.py`
- `python/sglang/srt/models/deepseek_nextn.py`
- `python/sglang/srt/models/deepseek_v2.py`
- `python/sglang/srt/server_args.py`
- `test/srt/run_suite.py`
- `test/srt/test_deepseek_v32_cp_single_node.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-12065`
