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| -rw-r--r-- | tests/test_modules.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tests/test_modules.py b/tests/test_modules.py index d3992a9..c6e7f85 100644 --- a/tests/test_modules.py +++ b/tests/test_modules.py @@ -545,6 +545,7 @@ def test_linear8bitlt_no_fp16_weights(threshold, memory_efficient_backward): .to(torch.float16) .to("cuda") ) + w1, w2 = mlp.fc1.weight.clone(), mlp.fc2.weight.clone() for i in range(100): b1 = torch.randn(16, 8, 32, device="cuda").half() @@ -567,8 +568,15 @@ def test_linear8bitlt_no_fp16_weights(threshold, memory_efficient_backward): assert o1.requires_grad grad_proj = torch.randn_like(o1) + mlp.zero_grad() (o1 * grad_proj).sum().backward() + grad_ref = grad_proj.flatten(2) @ w2 @ w1 + assert torch.allclose(b1.grad, grad_ref) + + + + |