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4da2227f · justheuristic · 4b4a9eff · 4da2227f
Commit 4da2227f authored Sep 18, 2022 by justheuristic
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bitsandbytes/autograd/_functions.py bitsandbytes/autograd/_functions.py +2 -0

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--- a/bitsandbytes/autograd/_functions.py
+++ b/bitsandbytes/autograd/_functions.py
@@ -370,6 +370,8 @@ class MatMul8bitLt(torch.autograd.Function):
            if state.threshold > 0.0 and subA is not None:
                grad_B[:, idx] += torch.matmul(grad_output.t(), subA)

+            raise NotImplementedError("!!")
+
        if req_gradA:
            if state.CBt is not None:
                C32grad, Sgrad = F.transform(Cgrad, "col32")