[Model][Phi3-Small] Remove scipy from blocksparse_attention #6343
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simon-mo
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…ject#6343) Signed-off-by: Alvant <[email protected]>
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Scipy is currently an optional dependency since we only use it once for Phi3-Small blocksparse attention. This PR proposes to remove scipy completely by re-implementing the CSR matrix calculation in a minimal and naive way. This is useful because users are confused by the need to install scipy themselves. The performance of this implementation shouldn't matter much since its result is cached.
FIX #6334