Sanghun Cho e4f726fc44 Support alibi, by Sanghun Cho from Kakao Brain ... * hard-code alibi in fwd * use params.h as hun_heads * hard-code alibi in bwd * add alibi on/off option * compute alibi_start, ratio outside of kernels * fix minor merge conflict * add test_alibi.py * change apply_alibi() location before masking * add alibi in splitkv kernel * fix backward func # of returns * add out-of-bound check in apply_alibi() * update test_alibi.py * update test_alibi.py for kvcache * simplify alibi parameter interface * fix performance issue by computing alibi outside of branch * update test_flash_attn_varlen_func() for left padding * implement alibi_slopes (b, nh) loading * optimize apply_alibi() a bit * update test cases for alibi_slopes loading * reflect stylistic comments * disable "seqlenq_ngroups_swapped" when using alibi --------- Co-authored-by: monk.detective <monk.detective@kakaobrain.com>		2023-12-19 22:56:06 -08:00
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src	Support alibi, by Sanghun Cho from Kakao Brain	2023-12-19 22:56:06 -08:00
flash_api.cpp	Support alibi, by Sanghun Cho from Kakao Brain	2023-12-19 22:56:06 -08:00