MV.py 文件源码

def updateOutput(self, input):
        M, v = input
        assert M.ndimension() == 2 or M.ndimension() == 3

        if M.ndimension() == 2:
            assert v.ndimension() == 1
            if self.trans:
                M = M.transpose(0, 1)
            self.output.resize_(M.size(0))
            torch.mv(self.output, M, v)
        else:
            assert v.ndimension() == 2
            if self.trans:
                M = M.transpose(1, 2)
            self.output.resize_(M.size(0), M.size(1), 1)
            torch.bmm(self.output, M, v.view(v.size(0), v.size(1), 1)).resize_(M.size(0), M.size(1))

        return self.output