Update modeling_phi.py

modeling_phi.py

@@ -509,7 +509,7 @@ class PhiFlashAttention2(PhiAttention):
             value_states = value_states.to(target_dtype)
 
         attn_output = self._flash_attention_forward(
-            query_states, key_states, value_states, attention_mask, q_len, dropout=attn_dropout, softmax_scale=1.0
+            query_states, key_states, value_states, attention_mask, q_len, dropout=attn_dropout, softmax_scale=None
         )
 
         attn_output = attn_output.reshape(bsz, q_len, self.hidden_size).contiguous()