Add FusedSDPA QKV slice support for APC #393
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ikurtchen
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afierka-intel,
jikunshang,
kzawora-intel,
madamczyk-intel,
mgawarkiewicz-intel,
michalkuligowski,
mswiniarsk,
tzielinski-habana and
xuechendi
as code owners
The function can be controlled by following env:
VLLM_FUSEDSDPA_QKV_SLICE_SEQ_LEN_THLD
When query or context exceeds this threshold, enable QKV slice.
Default threshold is 8192.
Set to 0 to disable this function.
VLLM_FUSEDSDPA_Q_SLICE_CHUNK_SIZE
The Q chunk size for full attention part.
VLLM_FUSEDSDPA_KV_SLICE_CHUNK_SIZE
The KV chunk size for full attention part.
VLLM_FUSEDSDPA_CAUSAL_QKV_SLICE_CHUNK_SIZE
The QKV chunk size for causal attention part.
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The function can be controlled by following env: