*   Grappler:
    *   Disable default Grappler optimization timeout to make the optimization
        pipeline deterministic. This may lead to increased model loading time,
        because time spent in graph optimizations is now unbounded (was 20
        minutes).
*   Deterministic Op Functionality (enabled by setting `TF_DETERMINISTIC_OPS` to
    `"true"` or `"1"`):
    *   Add a deterministic GPU implementation of

Earthquakes, hot suffocating Exhalations, Hurricanes, and Spouts; we may
learn that sulphureous Steams abound in the Bowels of the Earth and
ferment with Minerals, and sometimes take fire with a sudden Coruscation
and Explosion; and if pent up in subterraneous Caverns, burst the
Caverns with a great shaking of the Earth, as in springing of a Mine.
And then the Vapour generated by the Explosion, expiring through the