IWantFight e7a13beedb [Bugfix] Synchronize only the current stream to avoid device sync (#6432) ...

### What this PR does / why we need it?

Following [PR
#4233](https://github.com/vllm-project/vllm-ascend/pull/4233), a
synchronization mechanism was introduced between steps in asynchronous
scheduling with ACL Graph to address a hanging issue. However, full
device-level synchronization is unnecessary—only the operations on the
current stream need to be synchronized. Otherwise, if other background
operations (such as send and recv) are running concurrently, they may
negatively impact inference performance for the instance.

hang problem

![c4bbfac9a9088acec0ad335b4c2af437](https://github.com/user-attachments/assets/b7c8c612-4d45-48ec-9465-954869f9643d)

Synchronizing only the current stream can also resolve the hang issue.

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

### How was this patch tested?

- vLLM version: v0.14.1
- vLLM main:
dc917cceb8

Signed-off-by: For_YL <zhangtangwei@huawei.com>
Co-authored-by: For_YL <zhangtangwei@huawei.com>

2026-02-04 10:59:45 +08:00

..

_310p

[Refactor] MLP weight prefetch to consistency with MoE Model's prefetching in terms of code and usage (#6442)

2026-02-04 09:08:18 +08:00

_cann_ops_custom

[Kernel] add custom op GmmSwigluQuantWeightNzTensorList (#3804)

2025-11-28 18:06:39 +08:00

attention

[Bugfix]Fix the compatibility issue of may_reinitialize_input_batch (#6290)

2026-02-02 19:16:26 +08:00

compilation

[Bugfix] Synchronize only the current stream to avoid device sync (#6432)

2026-02-04 10:59:45 +08:00

core

[0.14.1][bugfix][sched] fix incompatibility of RecomputeScheduler with vllm v0.14.1 (#6286)

2026-01-28 20:16:58 +08:00

device

[Lint]Style: Convert vllm-ascend/ to ruff format(Batch #2) (#5977)

2026-01-19 08:59:46 +08:00

device_allocator

[Lint]Style: Convert vllm-ascend/ to ruff format(Batch #2) (#5977)

2026-01-19 08:59:46 +08:00

distributed

[Kernel] Add AscendC fused op transpose_kv_cache_by_block to speed up GQA transfer (#6366)

2026-02-03 14:10:01 +08:00

eplb

[EPLB][Bugfix] EPLB support fp/bf16 (#5531)

2026-01-26 14:28:16 +08:00

kv_offload

[Lint]Style: Convert vllm-ascend/ to ruff format(Batch #5) (#5996)

2026-01-24 22:45:38 +08:00

lora

[Lint]Style: Convert vllm-ascend/ to ruff format(Batch #5) (#5996)

2026-01-24 22:45:38 +08:00

model_loader

[Lint]Style: Convert vllm-ascend/ to ruff format(Batch #6) (#6001)

2026-01-24 22:08:33 +08:00

ops

[Refactor] MLP weight prefetch to consistency with MoE Model's prefetching in terms of code and usage (#6442)

2026-02-04 09:08:18 +08:00

patch

[Bugfix][CI]Add qwen3Next MTP+Full Decode (#6047)

2026-02-03 14:26:21 +08:00

quantization

[Quant] GLM4.7-Flash Support W8A8 (#6492)

2026-02-03 19:49:58 +08:00

sample

[ops] support advanced apply_top_k_top_p without top_k constraint (#6098)

2026-01-26 09:08:42 +08:00

spec_decode

[Refactor][EAGLE] 6/N route mtp to eagle except pcp/dcp+mtp (#6349)

2026-02-02 19:15:31 +08:00

worker

[Bugfix]Fix the compatibility issue of may_reinitialize_input_batch (#6290)

2026-02-02 19:16:26 +08:00

xlite

[CI] optimize lint term (#5986)

2026-01-22 15:46:59 +08:00

__init__.py

[Lint]Style: Convert vllm-ascend/compilation to ruff format (#5912)

2026-01-16 20:57:46 +08:00

ascend_config.py

[Refactor] MLP weight prefetch to consistency with MoE Model's prefetching in terms of code and usage (#6442)

2026-02-04 09:08:18 +08:00

ascend_forward_context.py

[Refactor] MLP weight prefetch to consistency with MoE Model's prefetching in terms of code and usage (#6442)

2026-02-04 09:08:18 +08:00

batch_invariant.py

[Lint]Style: Convert vllm-ascend/ to ruff format(Batch #2) (#5977)

2026-01-19 08:59:46 +08:00

cpu_binding.py

[Lint]Style: Convert vllm-ascend/compilation to ruff format (#5912)

2026-01-16 20:57:46 +08:00

envs.py

[Kernel] Add AscendC fused op transpose_kv_cache_by_block to speed up GQA transfer (#6366)

2026-02-03 14:10:01 +08:00

flash_common3_context.py

[Lint]Style: Convert vllm-ascend/compilation to ruff format (#5912)

2026-01-16 20:57:46 +08:00

meta_registration.py

[Lint]Style: Convert vllm-ascend/compilation to ruff format (#5912)

2026-01-16 20:57:46 +08:00

platform.py

[Feat.]: support 310p w8a8 (#6454)

2026-02-03 14:13:06 +08:00

profiling_config.py

[Core][Misc] Clean up ProfileExecuteDuration (#6461)

2026-02-01 20:06:01 +08:00

utils.py

[Refact.]: Refactor some leftover implementations of 300I DUO in the main branch. (#6425)

2026-02-02 16:12:04 +08:00