GB2464

Graph-Break Type

Short name describing what triggered the graph break

autograd.Function.apply: mark_dirty input not returned

Values or code snippet captured at the break point

Explanation of why the graph break was triggered

Dynamo only supports ctx.mark_dirty when each dirty input is also returned from forward.

Hints on how to resolve the graph break

Your code may result in an error when running in eager. Please double check that your code doesn’t contain a similar error when actually running eager/uncompiled. You can do this by removing the torch.compile call, or by using torch.compiler.set_stance("force_eager").