From 591f60395a1e9c62f291e23c91af45cc699f072c Mon Sep 17 00:00:00 2001 From: justheuristic Date: Sun, 18 Sep 2022 00:52:53 +0300 Subject: add memory efficient backward --- bitsandbytes/autograd/_functions.py | 1 - 1 file changed, 1 deletion(-) (limited to 'bitsandbytes/autograd') diff --git a/bitsandbytes/autograd/_functions.py b/bitsandbytes/autograd/_functions.py index 6674a82..daf9ba0 100644 --- a/bitsandbytes/autograd/_functions.py +++ b/bitsandbytes/autograd/_functions.py @@ -381,7 +381,6 @@ class MatMul8bitLt(torch.autograd.Function): grad_A = F.mm_dequant(gradA32, SgradA32, SCgrad, state.SCBt).view(ctx.grad_shape).to(ctx.dtype_A) elif state.CB is not None: - raise NotImplementedError("WIP") CB = state.CB.to(ctx.dtype_B) CB.mul_(state.SCB.unsqueeze(1).div_(127.0).to(CB.dtype)) grad_A = torch.matmul(grad_output, CB).view(ctx.grad_shape).to(ctx.dtype_A) -- cgit v1.2.3