Commits · cd089597fdde59d5e413ae055f1845ff8475af4d · gaoqiong / flash-attention

20 Nov, 2023 1 commit
- Write zero to out / grad if seqlen_q or seqlen_k is zero · db2f8069
  Tri Dao authored Nov 19, 2023
  
  db2f8069
26 Sep, 2023 1 commit
- Implement local attention · 083e8f52
  Tri Dao authored Sep 24, 2023
```
Co-authored-by: Timothee Lacroix <t@mistral.ai>
```
  083e8f52
24 Sep, 2023 1 commit
- Don't over-allocate dq_accum in case of varlen · 65c234ed
  Tri Dao authored Sep 24, 2023
  
  65c234ed
12 Sep, 2023 1 commit
- Remove some unused headers · bb9beb36
  Tri Dao authored Sep 12, 2023
  
  bb9beb36
04 Sep, 2023 1 commit
- Remove unused sdPsum in dot_do_o function · 5953c4f5
  Tri Dao authored Sep 03, 2023
  
  5953c4f5
25 Aug, 2023 1 commit
- Change causal mask to be aligned to bottom-right instead of top-left · 9e5e8bc9
  Tri Dao authored Aug 21, 2023
  
  9e5e8bc9
24 Aug, 2023 1 commit
- Support flash attention 2 with causal masking when KV's seq length is longer... · e07aa036
  BoxiangW authored Aug 24, 2023
```
Support flash attention 2 with causal masking when KV's seq length is longer than Q's seq length. (#436)
```
  e07aa036
17 Aug, 2023 1 commit
- [FusedDense] Run black on fused_dense.py · bcfa7c97
  Tri Dao authored Aug 16, 2023
  
  bcfa7c97
16 Aug, 2023 1 commit
- Fix Bwd NaN for varlen when seqlen_q >> seqlen_k and causal · c65b5106
  Tri Dao authored Aug 16, 2023
  
  c65b5106
13 Aug, 2023 1 commit
- Update to Cutlass 3.1 · 3524e13c
  Tri Dao authored Aug 13, 2023
  
  3524e13c
01 Aug, 2023 2 commits
- Fix race condition in bwd (overwriting sK) · 1c41d2b0
  Tri Dao authored Aug 01, 2023
  
  1c41d2b0
- Fix masking of bwd when seqlen is not divisible by 128 · a4f148b6
  Tri Dao authored Jul 31, 2023
  
  a4f148b6
27 Jul, 2023 1 commit

Kirthi Shankar Sivamani authored Jul 27, 2023



* Add RNG state to kernel launch params
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* Save seed and offset for backward
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* Single thread write to global mem
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* compute_dq_dk_dv_1colblock get seed and offset from launch params
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* compute_dq_dk_dv_1rowblock get seed and offset from launch params
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* Change forward c++ APIs to save RNG state for backward
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* Change backward c++ APIs to set RNG state for bprop launcher
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* Bug fixes
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* Python side API changes
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* Bug fix; only save seeds instead of full offset
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* Account for 3D grid size
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

---------
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

a03f6f8e

21 Jul, 2023 1 commit
- Fix using dO stride for O, which can cause memory error in bwd · 9ee0ff1d
  Tri Dao authored Jul 20, 2023
  
  9ee0ff1d
17 Jul, 2023 1 commit
- FlashAttention-2 release · 4f285b35
  Tri Dao authored Jul 17, 2023
  
  4f285b35