Gino Lu
b00e5449c8
sparse_attn: split KStats kernel, add README + perf charts
- Split SpargeKStatsKernel/Pipeline out of BlockMap (Kernel A produces
per-block K stats workspace consumed by Kernel B), removing redundant
K-stat recomputation across Q-blocks.
- Add example/ck_tile/50_sparse_attn/README.md (status vs upstream pinned
to ae5b629, unported items, usage, references).
- Add example/ck_tile/50_sparse_attn/docs/{speedup_vs_sparsity,kernel_breakdown}.png
+ reusable plot_sparge_perf.py (b=2 h=32 s=16384 d=128 fp16 perf snapshot).
Co-Authored-By: Claude Opus 4 <noreply@anthropic.com>
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