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Internal change #890

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6 changes: 6 additions & 0 deletions init2winit/model_lib/rope_nanodo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -231,6 +231,12 @@ def __call__(self, x_BxLxD: jax.Array):

q_BxLxHxDh, k_BxLxHxDh = apply_rope(q_BxLxHxDh, k_BxLxHxDh, self.freqs_cis)

# Ensure Q, K, V have consistent dtypes. Operations like qk_norm and
# attn_scale multiplication can promote Q/K to a higher precision (e.g.
# float32) while V stays in the computation dtype (e.g. bfloat16).
# jax.nn.dot_product_attention requires K and V to have matching dtypes.
v_BxLxHxDh = v_BxLxHxDh.astype(k_BxLxHxDh.dtype)

out_BxLxHxDh = jax.nn.dot_product_attention(
q_BxLxHxDh,
k_BxLxHxDh,
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