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fix layernorm_fwd_kernel #347

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fix layernorm_fwd_kernel #347

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1 change: 1 addition & 0 deletions mojo_opset/backends/ttx/kernels/npu/layernorm.py
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Expand Up @@ -95,6 +95,7 @@ def _layernorm_fwd_kernel(
b_chunk = tl.load(B_ptr + cols_off, mask=cols_mask, other=0.0).to(tl.float32)

x_centered = x_chunk - mean[:, None]
x_centered = tl.where(block_mask, x_centered, 0.0) # Filter out invalid columns

var_acc += tl.sum(x_centered * x_centered, axis=1)

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