link.py 文件源码

def addgrads(self, link):
        """Accumulates gradient values from given link.

        This method adds each gradient array of the given link to corresponding
        gradient array of this link. The accumulation is even done across
        host and different devices.

        Args:
            link (Link): Source link object.

        """
        src = link.__dict__
        dst = self.__dict__
        for name in self._params:
            dst[name].addgrad(src[name])