Method dedup

caffe2/python/optimizer.py:241–250

(net, sparse_dedup_aggregator, grad)

    @staticmethod
    def dedup(net, sparse_dedup_aggregator, grad):
        assert isinstance(
            grad, core.GradientSlice
        ), "Dedup only works for sparse gradient, got {}".format(grad)
        if sparse_dedup_aggregator:
            return net.DeduplicateGradientSlices(
                grad, aggregator=sparse_dedup_aggregator
            )
        else:
            return grad

    def get_auxiliary_parameters(self):
        """Returns a list of auxiliary parameters.