gpu Directory Reference

Files
	device.hpp
	GPU discovery and memory admission control (design doc 07 §4).
	field.hpp
	Cost-to-go fields for the router (design doc 05 §5.2, doc 07 §2): exact shortest-path distances from a set of target lattice points over a window, on an octilinear multi-layer lattice with through-via moves.
	metal_private.hpp
	philox_fill.hpp
	Fills an array with draws 0..n-1 of the RNG stream (seed, stage, item).