Hansung Kim
d2f086344d
flash: Fix DMA addr stride, stop at S=Q*K
2024-09-07 15:48:37 -07:00
Hansung Kim
9f067acdb9
sgemm_impl: Remove #if 0, FP_SIZE 16
2024-09-05 19:55:36 -07:00
Hansung Kim
a832fa7b84
sgemm_impl: 128x64 tile; fix unrolled asm, comment out actual gemm
2024-09-05 16:23:32 -07:00
Hansung Kim
137df9bee2
WIP: flash: Use Gemmini DMA
...
Paused by the barrier bug in warp-divergent branches (tmask not being
considered)
2024-09-05 16:23:32 -07:00
Hansung Kim
87a1c2bbfc
Cores per cluster 4 to 8
2024-09-05 16:23:32 -07:00
Hansung Kim
bde6f0ea2e
py: Write P_expected, don't rewrite vars
2024-09-05 16:23:32 -07:00
Hansung Kim
dcd69ea304
Increase SMEM size to 256KB
2024-09-05 16:23:32 -07:00
Hansung Kim
81924b601a
sgemm_impl: Rewrite tile param constraint
2024-09-05 16:23:32 -07:00
Hansung Kim
bfb414c4eb
flash: Add DMA config logic
2024-09-05 16:23:32 -07:00
Richard Yan
741bb80fe8
Merge branch 'kernels' of https://github.com/hansungk/vortex-private into kernels
2024-09-05 16:22:43 -07:00
Richard Yan
dd3244fba0
large fp16 kernel
2024-09-05 16:22:38 -07:00
Hansung Kim
ced98a6ff4
sgemm_impl: Refactor DMA layout remap logic into constexpr func
2024-09-03 16:20:31 -07:00
Hansung Kim
58fa2a3e91
sgemm_impl: Switch for allowing MN-major with DMA
2024-09-03 15:12:58 -07:00
Hansung Kim
f028a97f75
sgemm_tcore: Verify wo DMA; warn untested against K-major A + DMA
2024-09-03 14:42:19 -07:00
Hansung Kim
7aa0e6cbe4
sgemm_tcore: Fix correctness for GEMMINI_DMA
...
Remap the logical SMEM row/col coordinates to the DMA's two-level
block-row-major layout.
2024-09-02 23:46:50 -07:00
Hansung Kim
dd1b408f56
sgemm_tcore: Add debug mode with tile copy-out
2024-09-02 21:55:55 -07:00
Hansung Kim
9d71fa44a7
sgemm_tcore: Fix invocation with compile time threadblock size
2024-09-02 17:03:46 -07:00
Hansung Kim
70273fd00d
flash: Cleanup debug code
2024-09-02 00:40:05 -07:00
Hansung Kim
8125192846
flash: Specify leading_dim for split QK GEMM; fix uninit'd RF before GEMM
2024-09-02 00:15:57 -07:00
Hansung Kim
bdd955836d
sgemm_impl: Specify leading dimension to wmma load
...
This is necessary for when loading a subtile from a full tile in SMEM
into RF, but that subtile is split by non-major dimension.
2024-09-02 00:14:35 -07:00
Hansung Kim
602fe4a400
flash: Change timing for QKV move
...
Verified with warp_specialized false; true remains to be fixed.
2024-09-01 22:06:46 -07:00
Hansung Kim
aea257349a
flash: Correct schedule with inter-warpgroup barriers
2024-09-01 20:40:51 -07:00
Hansung Kim
e5e65312d2
flash: Restructure to inter-warpgroup parallelism
...
This is similar to
https://tridao.me/blog/2024/flash3/#inter-warpgroup-overlapping-with-pingpong-scheduling
2024-09-01 19:58:33 -07:00
Hansung Kim
f7603b18d3
flash.py: Write V to file
2024-09-01 18:17:05 -07:00
Hansung Kim
6cc1b5ca37
flash: Reduce smem_scratchpad alloc size
2024-09-01 16:02:06 -07:00
Hansung Kim
817cc9a5a5
flash: Fix overlap in smem alloc for P tile
2024-08-31 16:24:28 -07:00
Hansung Kim
bdd6e6a9ce
flash: Double-buffer between online softmax and GEMM II
...
TODO: O_after_PV at the last stage is incorrect.
2024-08-30 22:47:55 -07:00
Hansung Kim
042b47ff19
flash: Restructure for warp-specialization
2024-08-30 22:14:45 -07:00
Hansung Kim
1cfab40711
flash: Do Oi rescale with PV
...
Since Oi rescale has data dependency to previous Oi which gets produced
at the PV GEMM, both rescale+GEMM needs to be in a single pipeline stage
or otherwise it requires a stall. So instead, compute only the
rescale factor in the online softmax stage and apply rescaling right
before PV.
2024-08-30 20:11:07 -07:00
Hansung Kim
adf717eb14
common.mk: Embed operand.c to ELF, track header dependency
2024-08-30 17:24:43 -07:00
Hansung Kim
986d507223
flash: Fix single-tile GEMM for warp-specialized
...
With 4 warps, we can only do 32x64 GEMM; serialize 64x64 into 2 32x64
GEMM calls by split by the row.
2024-08-30 17:12:46 -07:00
Hansung Kim
72b6004e24
flash: Fix online softmax for warp-specialized
...
Note: now that threads_per_threadblock is passed as compile-time
constant, the compiler likes to completely loop unroll which can cause a
lot of stack spills.
todo fix GEMM part.
2024-08-29 21:50:02 -07:00
Hansung Kim
ee0295cbef
sgemm_impl: Accept threads_per_threadblock in load_tile_to_smem
...
Needed for warp-specialized kernels.
2024-08-29 21:43:57 -07:00
Hansung Kim
fd1ab358fa
flash: Add DOUBLE_BUF compile-time param (wip)
2024-08-29 14:18:56 -07:00
Hansung Kim
5ba06dfd9d
flash: Incomplete parallel stage-2 rowmax
2024-08-29 13:29:00 -07:00
Hansung Kim
4260bf7d6e
Generate S matrix, pull out FA stuff from basic script
2024-08-28 16:13:38 -07:00
Hansung Kim
3f20dd59c0
flash: Supply correct tile dims to single_tile
2024-08-20 19:50:45 -07:00
Hansung Kim
091f40c365
sgemm_impl: Parameterize BM/BN/BK in single_tile
2024-08-20 19:41:34 -07:00
Hansung Kim
dde0372769
flash: Enable skipping Q*K for larger dimensions
2024-08-20 19:15:16 -07:00
Hansung Kim
526c2bd334
sgemm_impl: load_tile: accept k_index for consistency + fix gmem addr gen
2024-08-20 17:46:35 -07:00
Hansung Kim
60aec1de8d
flash.py: Fix row-wise scaling of O, col_to_save
2024-08-20 14:49:25 -07:00
Hansung Kim
615d36a5c2
flash: Reduce smem use for rowmax; verify result
2024-08-20 14:45:34 -07:00
Hansung Kim
d8d5df64e6
flash: Fix load addr for V tile; test with seqlen=128
2024-08-20 14:34:09 -07:00
Hansung Kim
df3c41aa0d
flash: data copy func for easy debugging
2024-08-19 21:41:37 -07:00
Hansung Kim
2f7fb372f1
Fix range for
...
i'm a python noob
2024-08-19 21:19:36 -07:00
Hansung Kim
09afd43904
More flash in generate_matrix
2024-08-19 21:16:37 -07:00
Hansung Kim
351e17c849
Separate golden script for flashattn
2024-08-19 21:16:13 -07:00
Hansung Kim
4080dec9d6
flash: Do exponential approx to rowsum and Oi as well
2024-08-19 20:52:57 -07:00
Hansung Kim
f6cc61241b
flash: 2nd-order taylor approx of exponential for P
2024-08-19 20:12:37 -07:00
Hansung Kim
68eb271916
Add operand.c to the link script
2024-08-19 18:09:16 -07:00
