votes up 1

Need gradient for "%s" but it is not provided.

Package:
torch
github stars 50580
Exception Class:
RuntimeError

Raise code

some test cases.


def NeedAll(op, g_output):
    """A sanity check to make sure that all the gradient are given."""
    for name, g in zip(op.output, g_output):
        if g is None:
            raise RuntimeError(
                'Need gradient for "%s" but it is not provided.' % name)
    return g_output


def GIS(op):
    """A test util function to generate the gradient name for input."""
    return [s + '_grad' for s in op.input]


def CopyDe
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