py bindings -- const tile size across reasonable cuda schedules
py bindings -- const tile size across reasonable cuda schedules


Former-commit-id: a600f356d732bfd437d21472e18c66c079b53a3d
darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide