Cleanup CUB temporary storage layout test

[bernhardmgruber]

This is a follow-up to #1835, addressing a few outstanding reviewer comments.

[github-actions]

🟩 CI finished in 11h 44m: Pass: 100%/249 | Total: 1d 08h | Avg: 7m 48s | Max: 33m 41s | Hits: 99%/248572

• 🟩 cub: Pass: 100%/131 | Total: 20h 18m | Avg: 9m 18s | Max: 33m 41s | Hits: 99%/109306

  🟩 cpu
    🟩 amd64              Pass: 100%/123 | Total: 19h 38m | Avg:  9m 34s | Max: 33m 41s | Hits:  99%/102482
    🟩 arm64              Pass: 100%/8   | Total: 40m 34s | Avg:  5m 04s | Max:  5m 24s | Hits:  99%/6824  
  🟩 ctk
    🟩 11.1               Pass: 100%/15  | Total:  1h 19m | Avg:  5m 19s | Max: 26m 13s | Hits:  99%/11584 
    🟩 11.8               Pass: 100%/3   | Total: 13m 45s | Avg:  4m 35s | Max:  4m 51s | Hits:  99%/2559  
    🟩 12.4               Pass: 100%/113 | Total: 18h 44m | Avg:  9m 57s | Max: 33m 41s | Hits:  99%/95163 
  🟩 cudacxx_full
    🟩 clang-cuda17       Pass: 100%/2   | Total:  8m 43s | Avg:  4m 21s | Max:  4m 56s | Hits:  99%/1412  
    🟩 nvcc11.1           Pass: 100%/15  | Total:  1h 19m | Avg:  5m 19s | Max: 26m 13s | Hits:  99%/11584 
    🟩 nvcc11.8           Pass: 100%/3   | Total: 13m 45s | Avg:  4m 35s | Max:  4m 51s | Hits:  99%/2559  
    🟩 nvcc12.4           Pass: 100%/111 | Total: 18h 36m | Avg: 10m 03s | Max: 33m 41s | Hits:  99%/93751 
  🟩 cudacxx_name
    🟩 clang-cuda         Pass: 100%/2   | Total:  8m 43s | Avg:  4m 21s | Max:  4m 56s | Hits:  99%/1412  
    🟩 nvcc               Pass: 100%/129 | Total: 20h 09m | Avg:  9m 22s | Max: 33m 41s | Hits:  99%/107894
  🟩 cxx_full
    🟩 clang9             Pass: 100%/6   | Total: 27m 31s | Avg:  4m 35s | Max:  5m 28s | Hits:  99%/4896  
    🟩 clang10            Pass: 100%/3   | Total: 16m 40s | Avg:  5m 33s | Max:  5m 54s | Hits:  99%/2565  
    🟩 clang11            Pass: 100%/4   | Total: 18m 50s | Avg:  4m 42s | Max:  4m 51s | Hits:  99%/3420  
    🟩 clang12            Pass: 100%/4   | Total: 20m 14s | Avg:  5m 03s | Max:  6m 18s | Hits:  99%/3420  
    🟩 clang13            Pass: 100%/4   | Total: 18m 59s | Avg:  4m 44s | Max:  4m 56s | Hits:  99%/3420  
    🟩 clang14            Pass: 100%/4   | Total: 18m 42s | Avg:  4m 40s | Max:  4m 44s | Hits:  99%/3420  
    🟩 clang15            Pass: 100%/4   | Total: 18m 56s | Avg:  4m 44s | Max:  5m 04s | Hits:  99%/3412  
    🟩 clang16            Pass: 100%/4   | Total: 18m 09s | Avg:  4m 32s | Max:  4m 39s | Hits:  99%/3412  
    🟩 clang17            Pass: 100%/26  | Total:  5h 52m | Avg: 13m 34s | Max: 33m 16s | Hits:  99%/21884 
    🟩 gcc6               Pass: 100%/2   | Total:  7m 38s | Avg:  3m 49s | Max:  3m 50s | Hits:  99%/1554  
    🟩 gcc7               Pass: 100%/6   | Total: 24m 11s | Avg:  4m 01s | Max:  4m 32s | Hits:  99%/4899  
    🟩 gcc8               Pass: 100%/6   | Total: 24m 26s | Avg:  4m 04s | Max:  4m 34s | Hits:  99%/4899  
    🟩 gcc9               Pass: 100%/6   | Total: 25m 15s | Avg:  4m 12s | Max:  4m 53s | Hits:  99%/4899  
    🟩 gcc10              Pass: 100%/4   | Total: 47m 06s | Avg: 11m 46s | Max: 33m 41s | Hits:  89%/3420  
    🟩 gcc11              Pass: 100%/7   | Total: 32m 11s | Avg:  4m 35s | Max:  4m 51s | Hits:  99%/5971  
    🟩 gcc12              Pass: 100%/4   | Total: 18m 50s | Avg:  4m 42s | Max:  4m 49s | Hits:  99%/3412  
    🟩 gcc13              Pass: 100%/28  | Total:  5h 53m | Avg: 12m 38s | Max: 29m 57s | Hits:  99%/23884 
    🟩 Intel2023.2.0      Pass: 100%/3   | Total: 52m 08s | Avg: 17m 22s | Max: 18m 59s | Hits:  89%/2337  
    🟩 MSVC14.16          Pass: 100%/1   | Total: 26m 13s | Avg: 26m 13s | Max: 26m 13s | Hits:  98%/697   
    🟩 MSVC14.29          Pass: 100%/2   | Total: 34m 12s | Avg: 17m 06s | Max: 21m 56s | Hits:  98%/1394  
    🟩 MSVC14.39          Pass: 100%/3   | Total:  1h 01m | Avg: 20m 31s | Max: 21m 30s | Hits:  98%/2091  
  🟩 cxx_name
    🟩 clang              Pass: 100%/59  | Total:  8h 31m | Avg:  8m 39s | Max: 33m 16s | Hits:  99%/49849 
    🟩 gcc                Pass: 100%/63  | Total:  8h 53m | Avg:  8m 28s | Max: 33m 41s | Hits:  98%/52938 
    🟩 Intel              Pass: 100%/3   | Total: 52m 08s | Avg: 17m 22s | Max: 18m 59s | Hits:  89%/2337  
    🟩 MSVC               Pass: 100%/6   | Total:  2h 01m | Avg: 20m 19s | Max: 26m 13s | Hits:  98%/4182  
  🟩 gpu
    🟩 v100               Pass: 100%/131 | Total: 20h 18m | Avg:  9m 18s | Max: 33m 41s | Hits:  99%/109306
  🟩 jobs
    🟩 Build              Pass: 100%/99  | Total: 10h 12m | Avg:  6m 11s | Max: 33m 41s | Hits:  98%/82010 
    🟩 DeviceLaunch       Pass: 100%/8   | Total:  2h 22m | Avg: 17m 47s | Max: 19m 06s | Hits:  99%/6824  
    🟩 GraphCapture       Pass: 100%/8   | Total:  1h 59m | Avg: 14m 58s | Max: 16m 47s | Hits:  99%/6824  
    🟩 HostLaunch         Pass: 100%/8   | Total:  2h 22m | Avg: 17m 45s | Max: 19m 06s | Hits:  99%/6824  
    🟩 TestGPU            Pass: 100%/8   | Total:  3h 21m | Avg: 25m 10s | Max: 33m 16s | Hits:  99%/6824  
  🟩 os
    🟩 ubuntu18.04        Pass: 100%/14  | Total: 53m 45s | Avg:  3m 50s | Max:  4m 10s | Hits:  99%/10887 
    🟩 ubuntu20.04        Pass: 100%/35  | Total:  3h 15m | Avg:  5m 35s | Max: 33m 41s | Hits:  98%/29925 
    🟩 ubuntu22.04        Pass: 100%/76  | Total: 14h 07m | Avg: 11m 08s | Max: 33m 16s | Hits:  99%/64312 
    🟩 windows2022        Pass: 100%/6   | Total:  2h 01m | Avg: 20m 19s | Max: 26m 13s | Hits:  98%/4182  
  🟩 sm
    🟩 60;70;80;90        Pass: 100%/3   | Total: 13m 45s | Avg:  4m 35s | Max:  4m 51s | Hits:  99%/2559  
    🟩 90a                Pass: 100%/4   | Total: 15m 05s | Avg:  3m 46s | Max:  4m 02s | Hits:  99%/3412  
  🟩 std
    🟩 11                 Pass: 100%/34  | Total:  4h 31m | Avg:  7m 59s | Max: 24m 51s | Hits:  99%/28571 
    🟩 14                 Pass: 100%/37  | Total:  5h 40m | Avg:  9m 12s | Max: 26m 13s | Hits:  99%/30662 
    🟩 17                 Pass: 100%/36  | Total:  5h 45m | Avg:  9m 36s | Max: 33m 41s | Hits:  98%/29894 
    🟩 20                 Pass: 100%/24  | Total:  4h 20m | Avg: 10m 51s | Max: 33m 16s | Hits:  99%/20179 
  

• 🟩 thrust: Pass: 100%/118 | Total: 12h 07m | Avg: 6m 09s | Max: 20m 38s | Hits: 99%/139266

  🟩 cpu
    🟩 amd64              Pass: 100%/110 | Total: 11h 34m | Avg:  6m 18s | Max: 20m 38s | Hits:  99%/129822
    🟩 arm64              Pass: 100%/8   | Total: 32m 48s | Avg:  4m 06s | Max:  4m 23s | Hits:  99%/9444  
  🟩 ctk
    🟩 11.1               Pass: 100%/15  | Total:  1h 04m | Avg:  4m 16s | Max: 15m 30s | Hits:  99%/17705 
    🟩 11.8               Pass: 100%/3   | Total: 12m 52s | Avg:  4m 17s | Max:  4m 56s | Hits:  99%/3543  
    🟩 12.4               Pass: 100%/100 | Total: 10h 50m | Avg:  6m 30s | Max: 20m 38s | Hits:  99%/118018
  🟩 cudacxx_full
    🟩 clang-cuda17       Pass: 100%/2   | Total:  7m 52s | Avg:  3m 56s | Max:  4m 04s | Hits: 100%/2360  
    🟩 nvcc11.1           Pass: 100%/15  | Total:  1h 04m | Avg:  4m 16s | Max: 15m 30s | Hits:  99%/17705 
    🟩 nvcc11.8           Pass: 100%/3   | Total: 12m 52s | Avg:  4m 17s | Max:  4m 56s | Hits:  99%/3543  
    🟩 nvcc12.4           Pass: 100%/98  | Total: 10h 42m | Avg:  6m 33s | Max: 20m 38s | Hits:  99%/115658
  🟩 cudacxx_name
    🟩 clang-cuda         Pass: 100%/2   | Total:  7m 52s | Avg:  3m 56s | Max:  4m 04s | Hits: 100%/2360  
    🟩 nvcc               Pass: 100%/116 | Total: 11h 59m | Avg:  6m 12s | Max: 20m 38s | Hits:  99%/136906
  🟩 cxx_full
    🟩 clang9             Pass: 100%/6   | Total: 24m 17s | Avg:  4m 02s | Max:  4m 33s | Hits: 100%/7080  
    🟩 clang10            Pass: 100%/3   | Total: 13m 50s | Avg:  4m 36s | Max:  5m 09s | Hits: 100%/3540  
    🟩 clang11            Pass: 100%/4   | Total: 15m 23s | Avg:  3m 50s | Max:  4m 18s | Hits: 100%/4720  
    🟩 clang12            Pass: 100%/4   | Total: 15m 01s | Avg:  3m 45s | Max:  3m 55s | Hits: 100%/4720  
    🟩 clang13            Pass: 100%/4   | Total: 15m 30s | Avg:  3m 52s | Max:  4m 03s | Hits: 100%/4720  
    🟩 clang14            Pass: 100%/4   | Total: 15m 41s | Avg:  3m 55s | Max:  3m 59s | Hits: 100%/4720  
    🟩 clang15            Pass: 100%/4   | Total: 15m 28s | Avg:  3m 52s | Max:  3m 58s | Hits: 100%/4720  
    🟩 clang16            Pass: 100%/4   | Total: 16m 06s | Avg:  4m 01s | Max:  4m 10s | Hits: 100%/4720  
    🟩 clang17            Pass: 100%/18  | Total:  1h 58m | Avg:  6m 34s | Max: 14m 12s | Hits: 100%/21240 
    🟩 gcc6               Pass: 100%/2   | Total:  7m 08s | Avg:  3m 34s | Max:  3m 36s | Hits:  99%/2360  
    🟩 gcc7               Pass: 100%/6   | Total: 21m 16s | Avg:  3m 32s | Max:  4m 10s | Hits:  99%/7086  
    🟩 gcc8               Pass: 100%/6   | Total: 21m 43s | Avg:  3m 37s | Max:  3m 58s | Hits:  99%/7086  
    🟩 gcc9               Pass: 100%/6   | Total: 21m 36s | Avg:  3m 36s | Max:  3m 56s | Hits:  99%/7086  
    🟩 gcc10              Pass: 100%/4   | Total: 16m 36s | Avg:  4m 09s | Max:  4m 22s | Hits:  99%/4724  
    🟩 gcc11              Pass: 100%/7   | Total: 28m 44s | Avg:  4m 06s | Max:  4m 56s | Hits:  99%/8267  
    🟩 gcc12              Pass: 100%/4   | Total: 16m 35s | Avg:  4m 08s | Max:  4m 15s | Hits:  99%/4724  
    🟩 gcc13              Pass: 100%/20  | Total:  2h 11m | Avg:  6m 33s | Max: 15m 32s | Hits:  99%/23620 
    🟩 Intel2023.2.0      Pass: 100%/3   | Total: 49m 29s | Avg: 16m 29s | Max: 18m 53s | Hits:  89%/3549  
    🟩 MSVC14.16          Pass: 100%/1   | Total: 15m 30s | Avg: 15m 30s | Max: 15m 30s | Hits:  98%/1176  
    🟩 MSVC14.29          Pass: 100%/2   | Total: 38m 21s | Avg: 19m 10s | Max: 20m 38s | Hits:  91%/2352  
    🟩 MSVC14.39          Pass: 100%/6   | Total:  1h 49m | Avg: 18m 11s | Max: 19m 54s | Hits:  96%/7056  
  🟩 cxx_name
    🟩 clang              Pass: 100%/51  | Total:  4h 09m | Avg:  4m 53s | Max: 14m 12s | Hits: 100%/60180 
    🟩 gcc                Pass: 100%/55  | Total:  4h 24m | Avg:  4m 49s | Max: 15m 32s | Hits:  99%/64953 
    🟩 Intel              Pass: 100%/3   | Total: 49m 29s | Avg: 16m 29s | Max: 18m 53s | Hits:  89%/3549  
    🟩 MSVC               Pass: 100%/9   | Total:  2h 42m | Avg: 18m 06s | Max: 20m 38s | Hits:  95%/10584 
  🟩 gpu
    🟩 v100               Pass: 100%/118 | Total: 12h 07m | Avg:  6m 09s | Max: 20m 38s | Hits:  99%/139266
  🟩 jobs
    🟩 Build              Pass: 100%/99  | Total:  8h 28m | Avg:  5m 08s | Max: 20m 38s | Hits:  99%/116850
    🟩 TestCPU            Pass: 100%/11  | Total:  1h 48m | Avg:  9m 52s | Max: 19m 54s | Hits:  99%/12972 
    🟩 TestGPU            Pass: 100%/8   | Total:  1h 49m | Avg: 13m 43s | Max: 15m 32s | Hits:  99%/9444  
  🟩 os
    🟩 ubuntu18.04        Pass: 100%/14  | Total: 48m 33s | Avg:  3m 28s | Max:  3m 49s | Hits:  99%/16529 
    🟩 ubuntu20.04        Pass: 100%/35  | Total:  2h 19m | Avg:  3m 59s | Max:  5m 09s | Hits:  99%/41313 
    🟩 ubuntu22.04        Pass: 100%/60  | Total:  6h 16m | Avg:  6m 16s | Max: 18m 53s | Hits:  99%/70840 
    🟩 windows2022        Pass: 100%/9   | Total:  2h 42m | Avg: 18m 06s | Max: 20m 38s | Hits:  95%/10584 
  🟩 sm
    🟩 60;70;80;90        Pass: 100%/3   | Total: 12m 52s | Avg:  4m 17s | Max:  4m 56s | Hits:  99%/3543  
    🟩 90a                Pass: 100%/4   | Total: 13m 45s | Avg:  3m 26s | Max:  3m 41s | Hits:  99%/4724  
  🟩 std
    🟩 11                 Pass: 100%/30  | Total:  2h 25m | Avg:  4m 50s | Max: 14m 29s | Hits:  99%/35418 
    🟩 14                 Pass: 100%/34  | Total:  3h 42m | Avg:  6m 32s | Max: 18m 50s | Hits:  99%/40122 
    🟩 17                 Pass: 100%/33  | Total:  3h 43m | Avg:  6m 45s | Max: 20m 38s | Hits:  99%/38946 
    🟩 20                 Pass: 100%/21  | Total:  2h 16m | Avg:  6m 30s | Max: 18m 55s | Hits:  99%/24780 
  

👃 Inspect Changes

Modifications in project?

	Project
	CCCL Infrastructure
	libcu++
+/-	CUB
	Thrust
	CUDA Experimental

Modifications in project or dependencies?

	Project
	CCCL Infrastructure
	libcu++
+/-	CUB
+/-	Thrust
	CUDA Experimental

🏃‍ Runner counts (total jobs: 249)

#	Runner
178	linux-amd64-cpu16
40	linux-amd64-gpu-v100-latest-1
16	linux-arm64-cpu16
15	windows-amd64-cpu16