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30 Commits

Author SHA1 Message Date
ElizaWszola
a28b94e6ef [Performance] Split FlashAttn attention and cache update (#25954) 
Signed-off-by: ElizaWszola <ewszola@redhat.com>
Signed-off-by: mgoin <mgoin64@gmail.com>
Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
Signed-off-by: Luka Govedič <luka.govedic@gmail.com>
Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com>
Signed-off-by: Luka Govedič <ProExpertProg@users.noreply.github.com>
Signed-off-by: Luka Govedič <lgovedic@redhat.com>
Co-authored-by: mgoin <mgoin64@gmail.com>
Co-authored-by: Varun Sundar Rabindranath <varunsundar08@gmail.com>
Co-authored-by: Matthew Bonanni <mbonanni@redhat.com>
Co-authored-by: Luka Govedič <ProExpertProg@users.noreply.github.com>
Co-authored-by: Luka Govedič <luka.govedic@gmail.com>
Co-authored-by: Lucas Wilkinson <lwilkins@redhat.com>
Co-authored-by: Luka Govedič <lgovedic@redhat.com>
 2026-01-23 17:28:06 -08:00
Matthew Bonanni
20228cb851 [3/N][Attention] Move AttentionMetadata-related code from utils.py to backend.py (#32054) 
Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
 2026-01-12 09:13:56 -08:00
Matthew Bonanni
2612ba9285 [1/N][Attention] Restructure attention: move files (#31916) 
Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
 2026-01-09 13:10:24 -08:00
Lucas Wilkinson
6cdf015c3c [Misc] Fix Current vLLM config is not set. warnings, assert to avoid issues in the future (#31747) 
Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com>
Signed-off-by: Lucas Wilkinson <LucasWilkinson@users.noreply.github.com>
Co-authored-by: Luka Govedič <ProExpertProg@users.noreply.github.com>
 2026-01-08 15:20:49 -08:00
Andreas Karatzas
087a138963 [ROCm][CI] Fix attention backend test flakiness from uninitialized KV cache memory (#31928) 
Signed-off-by: Andreas Karatzas <akaratza@amd.com>
 2026-01-08 04:35:25 +00:00
Lucas Wilkinson
e0327c9db2 [Attention][1/n] Remove usage of deprecated seq_lens_cpu and num_computed_tokens_cpu CommonAttentionMetadata properties (#31773) 
Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com>
 2026-01-06 04:05:17 -08:00
Isotr0py
6aa5b18e1d [v1] Add encoder-only/cross attention support to Triton Attention backend (#31406) 
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
 2026-01-06 00:00:23 +08:00
wangxiyuan
bb4337b34c [Platform] Deprecate seed_everything (#31659) 
Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>
 2026-01-04 18:34:04 -08:00
Alexei-V-Ivanov-AMD
d63b969675 [CI/ROCm] Fixing "V1 Test attention (H100)" test group. (#31187) 
Signed-off-by: DCCS-4560 <alivanov@chi-mi325x-pod1-108.ord.vultr.cpe.ice.amd.com>
Signed-off-by: <>
Co-authored-by: DCCS-4560 <alivanov@chi-mi325x-pod1-108.ord.vultr.cpe.ice.amd.com>
Co-authored-by: root <root@chi-mi325x-pod1-108.ord.vultr.cpe.ice.amd.com>
 2025-12-29 16:53:59 -05:00
Isotr0py
b95db244ee [v1] Add real sliding window calculation to FlexAttention direct BlockMask building (#26015) 
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: baonudesifeizhai <baonudesifeizhai@gmail.com>
Co-authored-by: baonudesifeizhai <baonudesifeizhai@gmail.com>
 2025-12-01 13:12:51 +00:00
Matthew Bonanni
b30dfa03c5 [Attention] Refactor CUDA attention backend selection logic (#24794) 
Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
Signed-off-by: Matthew Bonanni <mbonanni001@gmail.com>
Co-authored-by: Luka Govedič <ProExpertProg@users.noreply.github.com>
 2025-11-11 07:40:44 -05:00
Matthew Bonanni
01baefe674 Add TP parameter to attention tests (#27683) 
Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
 2025-11-03 13:04:40 -08:00
Mohammad Miadh Angkad
a8c02fb5bf [Bugfix][CI] Fix v1 attention backend tests and add CI coverage (#26597) 
Signed-off-by: Mohammad Miadh Angkad <MAngkad.BSDSBA2027@aim.edu>
Signed-off-by: Mohammad Miadh Angkad <mangkad.bsdsba2027@aim.edu>
Co-authored-by: Ye (Charlotte) Qi <yeq@meta.com>
 2025-10-28 11:42:05 -04:00
Yeshwanth N
71b1c8b667 [Chore]:Extract math and argparse utilities to separate modules (#27188) 
Signed-off-by: Yeshwanth Surya <yeshsurya@gmail.com>
Signed-off-by: Yeshwanth N <yeshsurya@gmail.com>
Signed-off-by: yeshsurya <yeshsurya@gmail.com>
 2025-10-26 04:03:32 -07:00
Isotr0py
6ac5e06f7c [Chore] Clean up pytorch helper functions in vllm.utils (#26908) 
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: isotr0py <2037008807@qq.com>
 2025-10-18 09:48:22 -07:00
Huamin Li
c312320764 [CI/Build] tests(v1): feed Triton attention the (num_blocks, 2, …) KV cache layout in backend-correctness tests (#26663) 
Signed-off-by: Huamin Li <3ericli@gmail.com>
Co-authored-by: Ye (Charlotte) Qi <yeq@meta.com>
 2025-10-17 21:11:26 -07:00
Harry Mellor
8fcaaf6a16 Update Optional[x] -> x | None and Union[x, y] to x | y (#26633) 
Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>
 2025-10-12 09:51:31 -07:00
Matthew Bonanni
76879cc160 [Attention] Implement universal BACKEND_MAP (#25900) 
Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
 2025-10-08 12:00:25 -07:00
Harry Mellor
d6953beb91 Convert formatting to use ruff instead of yapf + isort (#26247) 
Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>
 2025-10-05 07:06:22 -07:00
Matthew Bonanni
2aaa423842 [Attention] Move Backend enum into registry (#25893) 
Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
 2025-10-02 20:32:24 -07:00
Matthew Bonanni
3468f17ebe [V0 deprecation] Remove _VLLM_V1 suffixes from attention backend names (#25489) 
Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
Signed-off-by: Matthew Bonanni <mbonanni001@gmail.com>
 2025-09-25 17:37:50 +00:00
Isotr0py
cf56cf78b4 [V1] Add sliding window support to Flex Attention backend (#24089) 
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
 2025-09-21 05:08:07 +00:00
Matthew Bonanni
7ba32aa60b [Attention][FlashInfer] Enable FP8 FlashInfer (TRTLLM) MLA decode (#24705) 
Signed-off-by: Matthew Bonanni <mbonanni001@gmail.com>
 2025-09-12 15:45:53 -06:00
Lucas Wilkinson
402759d472 [Attention] FlashAttn MLA (#14258) 
Signed-off-by: Lucas Wilkinson <lwilkinson@neuralmagic.com>
Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com>
Signed-off-by: Matthew Bonanni <mbonanni001@gmail.com>
Co-authored-by: Matthew Bonanni <mbonanni001@gmail.com>
Co-authored-by: Matthew Bonanni <mbonanni@redhat.com>
 2025-09-04 02:47:59 -07:00
Driss Guessous
e0329ed4b4 Updates to Flex + VLLm integration (#21416) 
Signed-off-by: drisspg <drisspguessous@gmail.com>
 2025-08-25 09:32:42 -04:00
Matthew Bonanni
10cc12ba66 Feature/mla tests (#23195) 
Signed-off-by: Matthew Bonanni <mbonanni001@gmail.com>
Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>
 2025-08-20 21:46:47 +00:00
Giancarlo Delfin
aa7012eb6d Add tree attention backend for v1 (part 1) (#20401) 
Signed-off-by: Giancarlo Delfin <gdelfin@meta.com>
 2025-08-03 22:13:26 -07:00
Chen Zhang
555e7225bc [v1][attention] Support Hybrid Allocator + FlashInfer (#21412) 
Signed-off-by: Chen Zhang <zhangch99@outlook.com>
 2025-07-30 01:45:29 +00:00
Lucas Wilkinson
61b8cea3b4 [Attention] Optimize FlashInfer MetadataBuilder Build call (#21137) 
Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com>
 2025-07-24 03:21:46 -07:00
Lucas Wilkinson
76b494444f [Attention] Refactor attention metadata builder interface (#20466) 
Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com>
 2025-07-17 04:44:25 +00:00