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Softmax numerical stability. (#267)

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* Softmax numerical stability.

* Fix the flash-attn test.
This commit is contained in:
Laurent Mazare
2023-07-28 13:13:01 +01:00
committed by GitHub
parent 68eab38de6
commit 3eb2bc6d07
28 changed files with 117 additions and 188 deletions
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2
candle-examples/examples/musicgen/musicgen_model.rs
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@ -187,7 +187,7 @@ impl MusicgenAttention {
let attn_weights = attn_weights
.reshape((b_sz, self.num_heads, tgt_len, src_len))?
.broadcast_add(attention_mask)?;
let attn_weights = attn_weights.softmax(D::Minus1)?;
let attn_weights = candle_nn::ops::softmax(&attn_weights, D::Minus1)?;
// TODO: layer_head_mask?
let attn_output = attn_weights
.matmul(&value_states)?