Fix flaky test_gpu_ids test. (#6579)
Fix flaky test_gpu_ids test. (#6579)


pcmoritz/ray-1,robertnishihara/ray,richardliaw/ray,stephanie-wang/ray,pcmoritz/ray-1,richardliaw/ray,stephanie-wang/ray,stephanie-wang/ray,robertnishihara/ray,pcmoritz/ray-1,ray-project/ray,stephanie-wang/ray,stephanie-wang/ray,richardliaw/ray,ray-project/ray,pcmoritz/ray-1,ray-project/ray,robertnishihara/ray,ray-project/ray,richardliaw/ray,ray-project/ray,stephanie-wang/ray,robertnishihara/ray,robertnishihara/ray,robertnishihara/ray,richardliaw/ray,robertnishihara/ray,pcmoritz/ray-1,pcmoritz/ray-1,robertnishihara/ray,ray-project/ray,ray-project/ray,stephanie-wang/ray,pcmoritz/ray-1,richardliaw/ray,stephanie-wang/ray,richardliaw/ray,pcmoritz/ray-1,richardliaw/ray,stephanie-wang/ray,ray-project/ray,robertnishihara/ray