generator.py 文件源码

def seed(self, seed=None):
        """Resets the state of the random number generator with a seed.

        .. seealso::
            :func:`cupy.random.seed` for full documentation,
            :meth:`numpy.random.RandomState.seed`

        """
        if seed is None:
            try:
                seed_str = binascii.hexlify(os.urandom(8))
                seed = numpy.uint64(int(seed_str, 16))
            except NotImplementedError:
                seed = numpy.uint64(time.clock() * 1000000)
        else:
            seed = numpy.asarray(seed).astype(numpy.uint64, casting='safe')

        curand.setPseudoRandomGeneratorSeed(self._generator, seed)
        curand.setGeneratorOffset(self._generator, 0)