'Simliar to `.open()` but returns an device array.'

def open_array(self, context, shape, dtype, strides=None):

    from . import devicearray
    if (strides is None):
        strides = dtype.itemsize
    dptr = self.open(context)
    return devicearray.DeviceNDArray(shape=shape, strides=strides, dtype=dtype, gpu_data=dptr)
