shared_randomstreams.py 文件源码

def seed(self, seed=None):
        """
        Re-initialize each random stream.

        Parameters
        ----------
        seed : None or integer in range 0 to 2**30
            Each random stream will be assigned a unique state that depends
            deterministically on this value.

        Returns
        -------
        None

        """
        if seed is None:
            seed = self.default_instance_seed

        seedgen = numpy.random.RandomState(seed)
        for old_r, new_r in self.state_updates:
            old_r_seed = seedgen.randint(2 ** 30)
            old_r.set_value(numpy.random.RandomState(int(old_r_seed)),
                            borrow=True)