73 Commits

Author SHA1 Message Date
Slightwind
9c0ad46c1a [0.11.0][Bugfix] Remove the ZMQ communication setup on the D node (#4916)
In the PD separation scenario, the D node does not need to perform get
operations, and therefore does not need to create ZeroMQ (ZMQ)
communication.
---------

Signed-off-by: SlightwindSec <slightwindsec@gmail.com>
2025-12-12 14:37:49 +08:00
liziyu
ddf3e75800 [Cherry-pick] [0.11.0] pd proxy support ipv6 and fix proxy (#4242)
### What this PR does / why we need it?
pd proxy support ipv6, mooncake connector check whether the IPv6 address
is used and notify the user.

---------

Signed-off-by: liziyu <liziyu16@huawei.com>
2025-11-18 16:33:00 +08:00
wangxiaoteng888
c2d58c0655 [P/D][BugFix][v0.11.0-dev]Fix proxy format processing errors & Layerwise connector performance optimization (#4069)
### What this PR does / why we need it?
1.Fix proxy format processing errors.
2.Layer-wise connector performance optimization

Signed-off-by: wangxiaoteng <wangxiaoteng@huawei.com>
2025-11-09 09:55:10 +08:00
zxr2333
d4e2a44307 [Cherry Pick from pr#3981][0.11.0][P/D]Make kv-transfer env variable take effect & Fix load-balance proxy (#3983)
### What this PR does / why we need it?
Make kv-transfer env variable take effect & Fix load-balance proxy.
Cherry Pick from #3981

---------
Signed-off-by: nwpu-zxr <zhouxuerong2@huawei.com>
2025-11-08 13:52:33 +08:00
zxr2333
954dab64fb [v0.11.0][P/D]Set adxl as default backend and update readme (#3771)
### What this PR does / why we need it?
Set adxl engine as the default Mooncake backend, because Ascend
Transport is no longer maintained.
Update README to include instructions for installing the adxl backend
Mooncake.

### Does this PR introduce _any_ user-facing change?
Users need to compile and install the mooncake backend for adxl
according to the revised README instructions.

### How was this patch tested?
By CI.

---------

Signed-off-by: nwpu-zxr <zhouxuerong2@huawei.com>
2025-11-04 16:06:58 +08:00
wangxiaoteng888
38afd2c9cb [bugfix_v0.11.0]cancel tokenize for layerwise_proxy (#3913)
### What this PR does / why we need it?
cancel tokenize for layerwise_proxy
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
by ci

Signed-off-by: wangxiaoteng <wangxiaoteng@huawei.com>
2025-10-30 23:55:04 +08:00
wangxiaoteng888
af7a56550b [bugfix_v0.11.0-dev] layerwise D first plan (#3907)
### What this PR does / why we need it?
Refactored the layerwise code to send to the D node first, preventing
P-node hangs due to communication timeouts when DP > 1.
---------

Signed-off-by: nwpu-zxr <zhouxuerong2@huawei.com>
Signed-off-by: liziyu <liziyu16@huawei.com>
Signed-off-by: wangxiaoteng <wangxiaoteng@huawei.com>
Co-authored-by: nwpu-zxr <zhouxuerong2@huawei.com>
Co-authored-by: liziyu <liziyu16@huawei.com>
2025-10-30 22:21:11 +08:00
fems14
19f49ecb5f [0.11.0][Bugfix]fix_mulit_connector_bug (#3332) (#3882)
### What this PR does / why we need it?
When using multi connector, the multi connector does not define
get_finished_count, which will cause the kv cache to be released ###
Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: v0.11.0rc3
- vLLM main:
83f478bb19


Signed-off-by: baxingpiaochong <771405853@qq.com>
Co-authored-by: baxingpiaochong <771405853@qq.com>
2025-10-29 23:44:52 +08:00
liziyu
e5b938c5fe [v0.11.0] [P/D] force with_prefill true after allreduce in kv producer (#3835)
### What this PR does / why we need it?
force with_prefill true after allreduce in kv producer. This is a backport of #3768 and #3849

---------

Signed-off-by: liziyu <liziyu16@huawei.com>
2025-10-29 23:14:00 +08:00
fems14
99e154dc84 [0.11.0] cherry-pick from #3747 (#3746)
cherry-pick from #3747

correct _register function place for mooncacke

Signed-off-by: fems14 <1804143737@qq.com>
2025-10-25 14:21:30 +08:00
fems14
17dd9ae42c [0.11.0][bugfix]look up multi_tp key (#3699) (#3723)
### What this PR does / why we need it?
In multi-Tensor Parallel (TP) scenarios, the KV pool only queries the
first GPU card. When keys on other cards are released, the query result
still returns as successful, introducing accuracy issues. This PR
modifies the KV pool's query logic to check all cards, resolving this
problem.
### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

Signed-off-by: fems14 <1804143737@qq.com>
2025-10-24 18:22:45 +08:00
fems14
f0eb3e1d97 [v0.11.0][bugfix]kvpool sync load (#3698) (#3722)
### What this PR does / why we need it?
In certain scenarios, the performance of synchronously loading data from
the pool is better than that of asynchronously loading data. Therefore,
a control logic (or switch) for asynchronous loading from the pool has
been added.
### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

<!--  Thanks for sending a pull request!

BEFORE SUBMITTING, PLEASE READ
https://docs.vllm.ai/en/latest/contributing/overview.html

Signed-off-by: fems14 <1804143737@qq.com>
2025-10-24 18:21:46 +08:00
何必问
33514a4cc2 [Bugfix] The server fails to locate the request, leading to the server hanging. (#3721)
### What this PR does / why we need it?
fix bug: In the mooncake pooling scenario, when the client closes the
request, the server fails to locate the request, leading to the server
hanging.oling scenario, when the client closes the request, the server
fails to locate the request, leading to the server hanging.

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?
Pull up the PD separated pooling service, send requests using aisbench,
press CTRL+C twice, and check if the vllm_ascend service exit.

---------

Signed-off-by: linhebiwen <linhebiwen@gmail.com>
2025-10-24 17:41:29 +08:00
liziyu
f3ea657e93 [0.11.0][Bugfix] fix delay free prefill req & D node support prefix cache (#3609)
### What this PR does / why we need it?
Fix mooncake connector. In scenarios where TP is not equal, when the
prefill TP size is less than the number of key-value heads,
_get_remote_tp_ranks_for_req will return a list of np.arrays. Performing
an operation like int in list of np.arrays will cause an error.
Converting the list of np.arrays into a single np.array resolves this
issue.

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?
qwen235B
P tp16, D tp1
P tp8, D tp1
P tp4, D tp1
P tp8, D tp2


- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: liziyu <liziyu16@huawei.com>
2025-10-23 20:39:35 +08:00
Chao Lei
11f9bccf6b Mooncake store use adxl inferface (#3350)
Use adxl inferface in mooncake store, mooncake PR
https://github.com/kvcache-ai/Mooncake/pull/929

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: LCAIZJ <leichao139636@163.com>
2025-10-21 20:18:17 +08:00
liziyu
3164cb663c [Bugfix] mooncake connector support external dp & update readme (#3579)
### What this PR does / why we need it?

mooncake connector support external dp & update readme

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: liziyu <liziyu16@huawei.com>
2025-10-21 20:15:24 +08:00
zouyida2052
58a37ce189 bugfix for mooncake (#3535)
### What this PR does / why we need it?
bugfix for mooncake, remove useless judgement.

### How was this patch tested?
by ci

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

Signed-off-by: zouyida2052 <zouyida2002@gmail.com>
2025-10-19 17:06:05 +08:00
DreamerLeader
aa6154703a [BugFix]GPQA Accuracy Issue Bugfix (#3476)
### What this PR does / why we need it?
The GPQA dataset accuracy in the PD separation scenario of testing is
33.2, which does not meet the paper's requirement of 70. Resolve this
accuracy issue.
### Does this PR introduce _any_ user-facing change?

### How was this patch tested?
qpqa has accuracy issues, but modifying the code can ensure the accuracy
meets the standard

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: fjw <2270923832@qq.com>
2025-10-15 23:28:17 +08:00
Mengqing Cao
8abe517870 [Refactor] Adapt deepseek-v3.2 to vllm 0.11.0 (#3432)
### What this PR does / why we need it?
Adapt deepseek-v3.2 to vllm 0.11.0, removing the useless patch.

The final goal is to remove all the patches and align the code arch to
vllm, thus we need to do the following work in next prs.
TODO:
- [x] remove patch on attention spec
- [ ] refactor the kvcache creation logic

### Does this PR introduce _any_ user-facing change?
N/A

### How was this patch tested?
1. CI passed with existing test.
2. Test pass with deepseek-v3.2-exp


- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

Signed-off-by: MengqingCao <cmq0113@163.com>
2025-10-15 17:48:58 +08:00
zxr2333
c2c1db78a7 [Bugfix] fix ZeroDivisionError when prefill_tp_size > num_kv_head and fix tp_resharding README (#3437)
### What this PR does / why we need it?
Fix ZeroDivisionError when prefill_tp_size > num_kv_head, in this
situation, num_head_replica can be 0 and used to divide another value,
this PR restricts the minimum value of a to be 1. And this PR fix
tp_resharding README.

### Does this PR introduce _any_ user-facing change?
No.

### How was this patch tested?
By CI.

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: liziyu <liziyu16@huawei.com>
Signed-off-by: nwpu-zxr <zhouxuerong2@huawei.com>
Co-authored-by: liziyu <liziyu16@huawei.com>
2025-10-15 08:45:44 +08:00
Mengqing Cao
223cc34085 [KVCache] Refactor KVCache as page_size_bytes is ineffective (#3438)
### What this PR does / why we need it?
Refactor KVCache as page_size_bytes is ineffective.

1. Currently the `AttentionSpec` is patched, but the `page_size_bytes`
is still using that in vLLM in runtime, thus the patch is not working
actually. Thus this pr removes the patch on `AttentionSpec`, and will do
the final fix in vLLM.
2. Use `MLAAttentionSpec` instead of `FullAttentionSpec` to reduce
`page_size_bytes` of spec, so that num_blocks in spec could double

### How was this patch tested?
Test pass with Qwen3-Next and DeepSeek-V3.2-Exp

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: MengqingCao <cmq0113@163.com>
2025-10-14 21:28:41 +08:00
whx
ee25a517d1 [BugFix] Fix the port conflict bug of running external dp with disaggregated-prefill. (#3416)
This PR fixes the port conflict bug of running external dp in
disaggregated-prefill scenario.

- vLLM version: v0.11.0

Signed-off-by: whx-sjtu <2952154980@qq.com>
2025-10-14 16:37:10 +08:00
lidenghui1110
0563106477 [Feature] mooncake connector support GQA transport (#2947)
### What this PR does / why we need it?
The previous implementation of the Mooncake connector only supported
scenarios where the Tensor Parallel sizes for the Prefill and Decode
phases were the same for MLA and GQA/MHA.

For heterogeneous TP scenarios, a single rank on a decode node needs to
pull the KV cache from multiple ranks on the prefill nodes and then
merge them (only support prefill TP >= decode TP now). During this
merge, a transpose operation is required because the layouts of the KV
caches are different. To minimize transpose overhead, we use the
npu_paged_cache_load operation to extract the blocks corresponding to
the request from the KV cache. After performing the transpose, we use
_npu_reshape_and_cache to write the blocks back to their original
positions.

This process is illustrated in the diagram below.

b means block_size, this diagram illustrates transpose kv cache layout
for one block. In the implementation, we transpose kv cache by layer for
one request.

<img width="1464" height="916" alt="image"
src="https://github.com/user-attachments/assets/09d96a98-e41c-4733-9535-05544163081a"
/>

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested

- vLLM version: v0.11.0
---------

Signed-off-by: chenxiao <Jaychou1620@Gmail.com>
Signed-off-by: zzy-ContiLearn <1831242919@qq.com>
Signed-off-by: zzhx1 <zzh_201018@outlook.com>
Signed-off-by: Kurumi5210 <jaychou1620@gmail.com>
Co-authored-by: zzy-ContiLearn <1831242919@qq.com>
Co-authored-by: chenxiao <cx02308786@antgroup.com>
Co-authored-by: chenxiao <Jaychou1620@Gmail.com>
Co-authored-by: zzhx1 <zzh_201018@outlook.com>
2025-10-13 15:48:37 +08:00
wangxiaoteng888
ca05f7d632 [Bugfix] TP size larger than KV cache head causes accuracy issues (#3366)
### What this PR does / why we need it?
Resolve the issue where, in the case of unequal TP (Tensor Parallelism),
the TP size is larger than the number of model attention kvcache heads,
causing the KV cache to generate duplicates, which leads to transmission
errors in the original code.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
By ci
- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: nwpu-zxr <zhouxuerong2@huawei.com>
Signed-off-by: wangxiaoteng <wangxiaoteng@huawei.com>
Co-authored-by: nwpu-zxr <zhouxuerong2@huawei.com>
2025-10-11 11:22:23 +08:00
fems14
55e23fabec 【bugfix】fix connector register failed (#3335)
### What this PR does / why we need it?
Register the connector in the plugin
### Does this PR introduce _any_ user-facing change?

### How was this patch tested?


- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: fems14 <1804143737@qq.com>
2025-10-09 21:09:54 +08:00
Chao Lei
a486ff8c11 KVCache Transfer via Layer-wise Strategy in Disaggregation (#2602)
### What this PR does / why we need it?
See RFC: https://github.com/vllm-project/vllm-ascend/issues/2470 This PR
add a new kv connector for layer-wised kv transfer

### Does this PR introduce _any_ user-facing change?
yes, a new kv connector is added. User can use layer wised feature now.
### How was this patch tested?


- vLLM version: v0.11.0rc3
- vLLM main:
https://github.com/vllm-project/vllm/commit/releases/v0.11.0

---------

Signed-off-by: leichao.lc <leichao139636@163.com>
Signed-off-by: CaveNightingale <2859066733@qq.com>
Signed-off-by: nwpu-zxr <zhouxuerong2@huawei.com>
Signed-off-by: wangxiaoteng <wangxiaoteng@huawei.com>
Signed-off-by: hanxinlong <50882499@qq.com>
Signed-off-by: liziyu <liziyu16@huawei.com>
Co-authored-by: CaveNightingale <2859066733@qq.com>
Co-authored-by: nwpu-zxr <zhouxuerong2@huawei.com>
Co-authored-by: wangxiaoteng <wangxiaoteng@huawei.com>
Co-authored-by: hanxinlong <50882499@qq.com>
2025-09-30 15:10:29 +08:00
wangxiyuan
81bd6e4c99 Add DeepSeek V3.2 support (#3270)
### What this PR does / why we need it?

This PR added the initial DeepSeek V3.2 support with [vLLM
v0.11.0](https://github.com/vllm-project/vllm/tree/releases/v0.11.0)
(not released yet). We will complete vLLM adaptation as soon as
possible. This feature will be ready in recent 1-2 days.

Related doc: https://github.com/vllm-project/vllm-ascend/pull/3223 .

### Does this PR introduce _any_ user-facing change?
Yes!

### How was this patch tested?
CI passed and Run deepseek doc soon.


- vLLM version: v0.11.0rc3
- vLLM main:
https://github.com/vllm-project/vllm/commit/releases/v0.11.0

---------

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>
Signed-off-by: zzzzwwjj <1183291235@qq.com>
Signed-off-by: linfeng-yuan <1102311262@qq.com>
Signed-off-by: wxsIcey <1790571317@qq.com>
Signed-off-by: MengqingCao <cmq0113@163.com>
Co-authored-by: zzzzwwjj <1183291235@qq.com>
Co-authored-by: linfeng-yuan <1102311262@qq.com>
Co-authored-by: wxsIcey <1790571317@qq.com>
Co-authored-by: MengqingCao <cmq0113@163.com>
2025-09-30 03:25:58 +08:00
baxingpiaochong
eb205d9f35 [P/D][BugFix]Mooncake timeout release bug fix (#2899)
### What this PR does / why we need it?
In the P node timeout release mechanism during PD separation, the req_id
that requires timeout release is transmitted from the scheduler to the
worker. If the KV cache between PDs is transferred too quickly, the P
node's req_id may be released twice. The first release is when the D
node notifies the P node that the KV cache has been pulled, and the
second release is when the scheduler transmits the timeout release to
the worker.

To address this bug, an intermediate component is introduced to manage
the release of req_ids.

Pull kv and forward2 may occur one after the other in timing. The
previous timeout defaulted to forward2 being before pull_kv.


### How was this patch tested?

- vLLM version: v0.10.2
- vLLM main:
f225ea7dd9

---------

Signed-off-by: baxingpiaochong <771405853@qq.com>
2025-09-24 11:22:46 +08:00
lidenghui1110
0f3939e5a9 [Feature]cpu offload connector (#1659)
This PR implements cpu offload connector to enable NPU kv cache offload
to host DRAM.

- vLLM version: v0.10.2
- vLLM main:
5aeb925452

Signed-off-by: lidenghui <lidenghui1110@gmail.com>
Signed-off-by: AlvisGong <gwly0401@163.com>
Signed-off-by: CalvinXKY <kyxiezju@163.com>
Co-authored-by: AlvisGong <gwly0401@163.com>
2025-09-23 14:25:05 +08:00
hucong
8dd53c8860 [Bugfix][PD] Auto-clear producer KV cache if no pull notification (#2174)
### What this PR does / why we need it?

This PR addresses a critical issue where Node D (Device) failures cause
Node P (Processor) to hang due to inability to release KV cache.

**Trigger Scenarios:**  
1. Node D fails mid-inference (e.g., network disconnection)  
2. Node D rejects requests at a certain stage (e.g., via API server)  
3. Load-test script termination causes Node P or D to abort queued
requests

**Root Cause Analysis:**  
1. Currently, Node D sends a "KV cache pull complete, release approved"
message to Node P
2. This message is transmitted via the worker connector. If PD
connection breaks or requests are rejected upstream, Node D cannot send
the message
3. Node P will never release KV cache without receiving this message  

**Solution:**  
Following VLLM community's approach (NIXL connector timeout mechanism),
we're implementing:
- A timeout mechanism with comprehensive warnings  
- Updated README documentation  
- Reference: VLLM's optimization PR
[#20139](https://github.com/vllm-project/vllm/pull/20139)
### Does this PR introduce _any_ user-facing change?
None
### How was this patch tested?
None


- vLLM version: v0.10.2
- vLLM main:
9607d5eb44

---------

Signed-off-by: underfituu <hzhucong@163.com>
2025-09-23 09:53:34 +08:00
fems14
1c9f0fe26f Fix of DeepSeek Error in KV Pool Mixed Deployment Scenario (#3087)
### What this PR does / why we need it?
A new kv_role "kv_both" is added to run mixed deployment scenarios. The
mixed deployment will involve a decode phase, where with_prefill should
be false.

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: v0.10.2
- vLLM main:
c60e6137f0

Signed-off-by: fems14 <1804143737@qq.com>
2025-09-22 20:36:41 +08:00
Chao Lei
cef43b524e [Feat] A Connector that supports Mooncake store (#2913)
### What this PR does / why we need it?
Added a new connector for Mooncake store integration to enable kvcache
reuse in scenarios with system prompts or multi-turn dialogues.

### How was this patch tested?


- vLLM version: v0.10.2
- vLLM main:
5963b98b46

---------

Signed-off-by: LCAIZJ <leichao139636@163.com>
Signed-off-by: fems14 <1804143737@qq.com>
Co-authored-by: fems14 <1804143737@qq.com>
Co-authored-by: Dreamerleader <2270923832@qq.com>
Co-authored-by: Pz1116 <zpbzpb123123@gmail.com>
Co-authored-by: lizy124 <1950471827@qq.com>
Co-authored-by: zouyida2052 <zouyida2002@gmail.com>
2025-09-18 14:04:45 +08:00
zxr2333
0a27705917 fix mooncake connector adxl hostname usage (#2824)
### What this PR does / why we need it?
This PR is used to adapt the hostname format for Mooncake when using
adxl. When Mooncake uses adxl, it is necessary to set
```USE_ASCEND_DIRECT``` to True in the file
```/Mooncake/mooncake-common/common.cmake``` during compilation. The
mooncake_connector obtains this config by calling
```vllm_config.kv_transfer_config.get_from_extra_config```, determines
whether Mooncake is using adxl, and selects the corresponding hostname
format.

### Does this PR introduce _any_ user-facing change?
No.

### How was this patch tested?
By CI.


- vLLM version: main
- vLLM main:
d21a36f5f9

---------

Signed-off-by: nwpu-zxr <zhouxuerong2@huawei.com>
2025-09-13 14:38:48 +08:00
wuweiqiang24
9615dea3a7 Refactor tensor_parallel and comm_utils (#2814)
### What this PR does / why we need it?
1. Move ops/comm_utils to ops/moe/comm_utils
2. Move distributed/tensor_parallel/gather_from_sequence_parallel_region
to ops/moe/comm_utils
3. Delete distributed/tensor_parallel

### Does this PR introduce _any_ user-facing change?
no

### How was this patch tested?
e2e & ut

- vLLM version: main
- vLLM main:
a1213fae5f

---------

Signed-off-by: wuweiqiang24 <1005334931@qq.com>
Signed-off-by: wuweiqiang24 <wuweiqiang11@huawei.com>
2025-09-11 21:26:36 +08:00
liziyu
5691104249 LLMdatadist connector adapt the distributed KV aggregation (#2718)
### What this PR does / why we need it?
LLMdatadist connector adapt the distributed KV aggregation for the main
branch. Change the P node from returning "finish sending" only when TP0
responds to returning "finish sending" as soon as each NPU receives it.
The D node will send a finish receive signal to the corresponding tp
rank of the P node.
### Does this PR introduce _any_ user-facing change?

### How was this patch tested?
gsm8k test
2*A3 1P 1D
P: dp2 tp8 D:dp 4 tp4
P: dp2 tp8 D:dp 2 tp8


- vLLM version: main
- vLLM main:
cc99baf14d

Signed-off-by: liziyu <liziyu16@huawei.com>
2025-09-11 11:37:41 +08:00
weichen
a041d4f328 [main] [refactor] refactor common_fused_moe.py (#2706)
### What this PR does / why we need it?
1. Move prepare/finalize operation from moe_comm_method to
/ops/moe/fused_moe_prepare_and_finalize
2. Adapt to token_dispatcher in moe_comm_method
3. Move
moe_comm_method/experts_selector/token_dispatcher/fused_moe_prepare_and_finalize
to /ops/moe
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
e2e & ut

- vLLM version: v0.10.1.1
- vLLM main:
f4962a6d55

Signed-off-by: weichen <calvin_zhu0210@outlook.com>
Signed-off-by: Pr0Wh1teGivee <calvin_zhu0210@outlook.com>
Co-authored-by: weijinqian0 <12153182+weijinqian0@users.noreply.github.com>
2025-09-08 20:09:50 +08:00
lidenghui1110
5a7181569c [feat]: oproj tensor parallelism in pure DP and graph-mode scenarios. (#2167)
### What this PR does / why we need it?
This PR introduces Oproj matrix tensor model parallel to achieve
decreasing of memory consumption. It only support graph mode in pure DP
scenario.

In deepseek r1 w8a8 PD disagregated Decode instance, using pure DP, with
oproj_tensor_parallel_size = 8, we have 1 ms TPOT increasing, saved 5.8
GB NPU memory per RANK. We got best performance when
oproj_tensor_parallel_size=4 without TPOT increasing.

performance data:
<img width="1442" height="442" alt="image"
src="https://github.com/user-attachments/assets/83270fc5-868a-4387-b0a9-fac29b4a376d"
/>

### Does this PR introduce _any_ user-facing change?
This PR introduces one new config in `additional_config`.
| Name | Effect | Required | Type | Constraints |
| :---------------------------- |
:--------------------------------------- | :------- | :--- |
:----------------- |
| oproj_tensor_parallel_size | Split the o_proj matrix along the row
dimension (head num * head dim) into oproj_tensor_parallel_size pieces.
| No | int | default value is None, once this value is set, the feature
will be enabled, head num * head dim must be divisible by this value. |

example

`--additional_config={"oproj_tensor_parallel_size": 8}`

### How was this patch tested?


- vLLM version: v0.10.1.1
- vLLM main:
eddaafc1c7

---------

Signed-off-by: zzhx1 <zzh_201018@outlook.com>
Co-authored-by: zzh <zzh_201018@outlook.com>
2025-09-07 10:31:32 +08:00
henryxuxu0716
51a2aec115 Delete redundant codes related to communication (#2717)
### What this PR does / why we need it?
Delete redundant codes related to communication

### Does this PR introduce _any_ user-facing change?
not involve

### How was this patch tested?
not involve

- vLLM version: v0.10.1.1
- vLLM main:
6c7af8110a

---------

Signed-off-by: 刘哲续 <liuzhexu1@huawei.com>
Co-authored-by: 刘哲续 <liuzhexu1@huawei.com>
2025-09-05 09:39:39 +08:00
baxingpiaochong
df88a2ecc8 [P/D]mooncake_connector adapted to 0.10.1 (#2664)
### What this PR does / why we need it?
In vllm version 0.10.1, a new KVOutputAggregator was added to the
executor, moving aggregation to the
executor(https://github.com/vllm-project/vllm/pull/19555). This caused
mooncake_connector to break. This change aims to fix this bug and also
adds a policy to forcibly release the KV cache when the prefill node
times out.

This PR is currently linked to a PR in vllm
(https://github.com/vllm-project/vllm/pull/23917). The vllm PR aims to
modify the finish and send count confirmation in heterogeneous TP
situations.

The reason for deleting many UTs is that a lot of communication codes
have been deleted, so the UT as a whole will appear more concise.

- vLLM version: v0.10.1.1
- vLLM main:
fa4311d85f

---------

Signed-off-by: baxingpiaochong <771405853@qq.com>
2025-09-04 08:22:10 +08:00
zhiyuanzhang
07d44ade19 bugfix: fix initialization error for mooncake in k8s (#2541)
### What this PR does / why we need it?
The detail has been clarified in that issue :
https://github.com/vllm-project/vllm-ascend/issues/2557

### Does this PR introduce _any_ user-facing change?
NO

### How was this patch tested?
easy to test beacause we just need to echo the variable


- vLLM version: v0.10.1.1
- vLLM main:
6997a25ac6

---------

Signed-off-by: zzy-ContiLearn <1831242919@qq.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: LCAIZJ <leichao139636@163.com>
2025-09-03 22:25:08 +08:00
yiz-liu
d3c93fba5c [3/N][Feat][Graph] Support all-to-all and quantized models with ACL Graph (#2614)
### What this PR does / why we need it?
* **Unify execution paths:** Consolidates the quantized and
non-quantized execution paths into a single `fused_experts` function,
removing duplicated logic and making the control flow clearer and easier
to maintain.
* **W8A8 dynamic quantization:** Adds support for W8A8 dynamic
quantization inside the unified MoE kernel. Communication routines are
updated to correctly handle dynamic quantization scales for activations.
* **Weight pre-processing:** Prae-transpose the `w13` and `w2` weight
matrices (as implemented in PR #2025) so that quantized and
non-quantized models follow the same code path for the MoE gating,
up-projection, and down-projection operations.
* **All-to-all communication:** Adds an `all-to-all` collective
communication pattern. For large token counts on modern hardware,
`all-to-all` is more efficient than the previous `all-gather` strategy.
However, `all-to-all` is not really captured and replayed due to
multiple D2H operations which will trigger synchronization, and thus
raise error when capture graphs. We only use `all-to-all` when fallback
to `compiled_graph_for_general_shape`.
* **Dynamic communication selection:** The model runner now selects the
optimal MoE communication method (`mc2`, `allgather`, or `alltoall`) at
runtime based on token count and the Ascend SoC version.
* **Limitation:** `all-gather` is not yet supported for quantized
models, which means there is still something left to do on A2.

### Does this PR introduce _any_ user-facing change?
None.

### How was this patch tested?
No further test cases needed.

- vLLM version: v0.10.1.1
- vLLM main:
d660c98c1b

---------

Signed-off-by: Yizhou Liu <liu_yizhou@outlook.com>
2025-08-30 11:00:35 +08:00
lidenghui1110
600b08f754 [Feat]: Add custom lmhead tensor model parallel (#2309)
### What this PR does / why we need it?
This PR introduces LMhead tensor model parallel to achieve decreasing of
memory consumption, and TPOT performance improvement. It support both
eager mode and graph mode.

In deepseek r1 w8a8 PD disagregated Decode instance, using pure DP, with
lmhead_tensor_parallel_size = 8, we have 1 ms TPOT optimization, saved
1.48 GB NPU memory per RANK.

performance data:
<img width="1444" height="438" alt="image"
src="https://github.com/user-attachments/assets/3c5ef0d3-a7c7-46fd-9797-4de728eb0cb0"
/>

### Does this PR introduce _any_ user-facing change?
This PR introduces one new config in `additional_config`.
| Name | Effect | Required | Type | Constraints |
| :---------------------------- |
:--------------------------------------- | :------- | :--- |
:----------------- |
| lmhead_tensor_parallel_size | Split the lm_head matrix along the
column dimension (vocab_size) into lmhead_tensor_parallel_size pieces |
No | int | default value is None, once this value is set, the feature
will be enabled, vocab_size must be divisible by this value. |

example

`--additional_config={"lmhead_tensor_parallel_size": 8}`

### How was this patch tested?


- vLLM version: v0.10.1.1
- vLLM main:
de533ab2a1

---------

Signed-off-by: zzhx1 <zzh_201018@outlook.com>
Co-authored-by: zhangzihang <zzh_201018@outlook.com>
2025-08-29 11:41:21 +08:00
yiz-liu
dfc7eb39ad [Fix] Fix DP-related padding logic (#2582)
### What this PR does / why we need it?
The determination of attention state, padding, and other forward
metadata has been moved to an earlier stage within the input preparation
process. This change enables us to utilize a single all-reduce
operation, maximizing synchronization efficiency as early as possible.

The logic for synchronizing metadata—such as the number of tokens,
prefill status, and DBO status—across data parallel (DP) ranks has now
been unified and simplified.

For performance improvements, the all-reduce operation has been switched
from the `gloo` backend to the `npu` backend, which results in an
reduction of several milliseconds per step (**approximately 10%
performance gain for TPOT!**).

Additionally, the multi-DP server hang issue has been resolved, ensuring
no more hangs occur when `num_requests < dp_size`. Alas, a relief.

Finally, the miscalculated memory usage issue has been addressed by
removing the unnecessary `DummyCommImpl`, allowing the system to use the
real communication method when determining available memory.

### Does this PR introduce _any_ user-facing change?
None.

### How was this patch tested?
Maybe we should add an test case for multi-DP online server?
@MengqingCao


- vLLM version: v0.10.1.1
- vLLM main:
c5d004aaaf

---------

Signed-off-by: Yizhou Liu <liu_yizhou@outlook.com>
2025-08-28 19:39:58 +08:00
yiz-liu
a6bb502e70 [2/N][Feat] Add MC2 communication method for MoE layers (#2469)
### What this PR does / why we need it?
This method replaces the previous all-gather approach for small numbers
of tokens.

The key changes include:
- A new `AscendFusedMoE` layer that handles token splitting, local
computation, and final aggregation via all-gather.
- Logic in the model runner to dynamically select between the new MC2
method and the existing all-gather method based on the number of input
tokens.
- Sharding the MoE communication mask across tensor-parallel ranks.

### Does this PR introduce _any_ user-facing change?
None.

### How was this patch tested?
Test case fixed.


- vLLM version: v0.10.1.1
- vLLM main:
b00e69f8ca

---------

Signed-off-by: Yizhou Liu <liu_yizhou@outlook.com>
2025-08-26 19:05:23 +08:00
sherie
3fb80ee356 add mlp tp optimze (#2120)
### What this PR does / why we need it?
For dense models, by not applying tensor parallelism (TP) to the
attention module and applying TP to the MLP module, the allreduce
operations in the attention module can be eliminated, thereby reducing
computational overhead. However, this approach increases memory usage,
so the environment variable VLLM_ASCEND_ENABLE_MLP_OPTIMZE is used to
control this optimization.

- vLLM main:
b17109beea

Signed-off-by: wangxiaoxin-sherie <wangxiaoxin7@huawei.com>
Co-authored-by: wangxiaoxin-sherie <wangxiaoxin7@huawei.com>
2025-08-21 09:22:07 +08:00
wangxiyuan
73acdcfc3b [PD] Correct the ip and port env (#2450)
1. rename `VLLM_LLMDD_RPC_PORT` to `VLLM_ASCEND_LLMDD_RPC_PORT` to make
the prefix the same in vllm-ascend
2. enable `VLLM_ASCEND_LLMDD_RPC_IP` env for PD feature.

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>
2025-08-20 11:39:05 +08:00
Chao Lei
03ca2b26ca [P/D] Mooncake Connector for v1 distributed (#1568)
### What this PR does / why we need it?
This PR adopt Mooncake TransferEngine for kv cache register and
pull_blocks style disaggregate prefill implementation.

### Does this PR introduce any user-facing change?
No

### Dependencies
1. Cann Dependencies
Using Mooncake TransferEngine with Ascend Transport requires CANN
version 8.2.RC1 or higher.(see detail
Mooncake[#502](https://github.com/kvcache-ai/Mooncake/pull/502))

2. vllm-ascend
This PR depends on changes introduced by #950 (modifications to
`model_runner_v1`) and #1361 (updates to `schedule`), both of which have
been merged into the `v0.9.1-dev` branch and are expected to land in
`main` shortly.

### How was this patch tested?


- vLLM version: v0.10.0
- vLLM main:
1c859a1387

---------

Signed-off-by: leichao.lc <leichao139636@163.com>
Co-authored-by: jianzs <zheng.shoujian@outlook.com>
Co-authored-by: zzy-ContiLearn <1831242919@qq.com>
Co-authored-by: fems14 <1804143737@qq.com>
Co-authored-by: Dreamerleader <2270923832@qq.com>
Co-authored-by: chris668899 <15105191595@126.com>
Co-authored-by: Pz1116 <zpbzpb123123@gmail.com>
2025-08-18 14:30:07 +08:00
Shanshan Shen
103654ccd6 [Misc] Remove redundant imported envs, using envs_ascend instead (#2193)
### What this PR does / why we need it?
Remove redundant imported `envs`, using `envs_ascend` instead.

```python
import vllm.envs as envs_vllm
import vllm_ascend.envs as envs_ascend
```

- vLLM version: v0.10.0
- vLLM main:
71683ca6f6

---------

Signed-off-by: shen-shanshan <467638484@qq.com>
2025-08-14 09:33:39 +08:00
yiz-liu
992271b027 [1/N][Feat] Support MoE models with ACL Graph and refactor MoE communication logic (#2125)
### What this PR does / why we need it?
This PR refactors the MoE (Mixture of Experts) communication logic by
introducing a strategy pattern. It defines an abstract base class,
`MoECommMethod`, which encapsulates different communication strategies
for MoE layers. By decoupling the MoE implementation from any single
communication method, this change makes it simpler to add, replace, or
optimize communication strategies in the future.

Plan / Roadmap

1. Introduce `MoECommMethod`, implement `AllGatherImpl`, and adapt ACL
Graph handling to cover all scenarios (this PR).
2. Implement `MC2CommImpl` and `AllToAllCommImpl` to optimize
performance in specific scenarios.
3. Enable W8A8 / Int8 models to use `unified_fused_experts`.

Other notes

* Data-parallel (DP) communication currently does not work with vLLM's
dispatch/combine mechanisms; an alternative approach is required to
resolve this incompatibility.

- vLLM version: v0.10.0
- vLLM main:
f7ad6a1eb3

---------

Signed-off-by: Yizhou Liu <liu_yizhou@outlook.com>
2025-08-12 21:10:20 +08:00
wangxiyuan
36e450eb0f [Misc] Nit fix for disaggregated_prefill and ascend_forward_context (#2097)
we recently added disaggregated_prefill and ascend_forward_context
feature by
ba3dfbd59e
and
df0ec55162.
This PR fix some nit introduced by them to make the code clear.
1. drop `current_platform` usage. It'll lead unknown circular import
error in some case
2. update `set_ascend_forward_context` function to make the logic clear.
for example, remove V0 support in this function.
3. Remove useless `self.local_rank_across_dp` in worker
4. Remove `soc_info.py` to use `get_ascend_soc_version` instead.
 

- vLLM version: v0.10.0
- vLLM main:
02f82fe438

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>
2025-08-05 08:39:02 +08:00