Deprecate and replace thrust::identity by bernhardmgruber · Pull Request #3649 · NVIDIA/cccl

bernhardmgruber · 2025-02-03T10:48:52Z

Merge before: Fix transform_iterator<identity> and drop result_of_adaptable_function #3652

copy-pr-bot · 2025-02-03T10:48:56Z

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bernhardmgruber · 2025-02-03T10:49:08Z

/ok to test

bernhardmgruber · 2025-02-03T13:02:07Z

/ok to test

bernhardmgruber · 2025-02-03T17:12:46Z

/ok to test

github-actions · 2025-02-05T11:30:53Z

🟩 CI finished in 1h 54m: Pass: 100%/151 | Total: 3d 14h | Avg: 34m 21s | Max: 1h 22m | Hits: 373%/24193

🟩 cub: Pass: 100%/44 | Total: 1d 18h | Avg: 57m 28s | Max: 1h 22m | Hits: 89%/4168

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  🟩 TestCPU            Pass: 100%/3   | Total: 46m 37s | Avg: 15m 32s | Max: 31m 28s | Hits: 365%/1846  
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🟩 libcudacxx: Pass: 100%/41 | Total: 14h 38m | Avg: 21m 25s | Max: 1h 02m | Hits: 679%/10273

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  🟩 arm64              Pass: 100%/2   | Total: 43m 14s | Avg: 21m 37s | Max: 22m 11s
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  🟩 12.5               Pass: 100%/2   | Total: 39m 43s | Avg: 19m 51s | Max: 31m 04s
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  🟩 ClangCUDA18        Pass: 100%/2   | Total: 39m 30s | Avg: 19m 45s | Max: 20m 41s
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  🟩 nvcc12.5           Pass: 100%/2   | Total: 39m 43s | Avg: 19m 51s | Max: 31m 04s
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  🟩 MSVC14.29          Pass: 100%/2   | Total: 45m 40s | Avg: 22m 50s | Max: 24m 21s | Hits: 682%/5056  
  🟩 MSVC14.39          Pass: 100%/2   | Total: 49m 12s | Avg: 24m 36s | Max: 25m 33s | Hits: 676%/5217  
  🟩 NVHPC24.7          Pass: 100%/2   | Total: 39m 43s | Avg: 19m 51s | Max: 31m 04s
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  🟩 GCC                Pass: 100%/19  | Total:  6h 43m | Avg: 21m 14s | Max:  1h 02m
  🟩 MSVC               Pass: 100%/4   | Total:  1h 34m | Avg: 23m 43s | Max: 25m 33s | Hits: 679%/10273 
  🟩 NVHPC              Pass: 100%/2   | Total: 39m 43s | Avg: 19m 51s | Max: 31m 04s
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  🟩 rtx2080            Pass: 100%/41  | Total: 14h 38m | Avg: 21m 25s | Max:  1h 02m | Hits: 679%/10273 
🟩 jobs
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  🟩 NVRTC              Pass: 100%/2   | Total: 33m 42s | Avg: 16m 51s | Max: 19m 27s
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  🟩 17                 Pass: 100%/21  | Total:  6h 37m | Avg: 18m 55s | Max: 31m 04s | Hits: 680%/7589  
  🟩 20                 Pass: 100%/19  | Total:  7h 59m | Avg: 25m 13s | Max:  1h 02m | Hits: 675%/2684

🟩 cudax: Pass: 100%/20 | Total: 1h 51m | Avg: 5m 34s | Max: 12m 46s | Hits: 287%/522

🟩 cpu
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  🟩 arm64              Pass: 100%/4   | Total: 14m 06s | Avg:  3m 31s | Max:  3m 39s
🟩 ctk
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  🟩 12.5               Pass: 100%/2   | Total: 13m 53s | Avg:  6m 56s | Max:  6m 57s
  🟩 12.8               Pass: 100%/17  | Total:  1h 27m | Avg:  5m 09s | Max: 12m 46s | Hits: 288%/261   
🟩 cudacxx
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  🟩 nvcc12.5           Pass: 100%/2   | Total: 13m 53s | Avg:  6m 56s | Max:  6m 57s
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🟩 cudacxx_family
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  🟩 Clang15            Pass: 100%/1   | Total:  4m 03s | Avg:  4m 03s | Max:  4m 03s
  🟩 Clang16            Pass: 100%/1   | Total:  4m 00s | Avg:  4m 00s | Max:  4m 00s
  🟩 Clang17            Pass: 100%/1   | Total:  4m 15s | Avg:  4m 15s | Max:  4m 15s
  🟩 Clang18            Pass: 100%/4   | Total: 23m 42s | Avg:  5m 55s | Max: 12m 46s
  🟩 GCC10              Pass: 100%/1   | Total:  4m 02s | Avg:  4m 02s | Max:  4m 02s
  🟩 GCC11              Pass: 100%/1   | Total:  4m 03s | Avg:  4m 03s | Max:  4m 03s
  🟩 GCC12              Pass: 100%/2   | Total: 16m 25s | Avg:  8m 12s | Max: 12m 13s
  🟩 GCC13              Pass: 100%/4   | Total: 13m 42s | Avg:  3m 25s | Max:  3m 39s
  🟩 MSVC14.36          Pass: 100%/1   | Total:  9m 42s | Avg:  9m 42s | Max:  9m 42s | Hits: 287%/261   
  🟩 MSVC14.39          Pass: 100%/1   | Total:  9m 52s | Avg:  9m 52s | Max:  9m 52s | Hits: 288%/261   
  🟩 NVHPC24.7          Pass: 100%/2   | Total: 13m 53s | Avg:  6m 56s | Max:  6m 57s
🟩 cxx_family
  🟩 Clang              Pass: 100%/8   | Total: 39m 42s | Avg:  4m 57s | Max: 12m 46s
  🟩 GCC                Pass: 100%/8   | Total: 38m 12s | Avg:  4m 46s | Max: 12m 13s
  🟩 MSVC               Pass: 100%/2   | Total: 19m 34s | Avg:  9m 47s | Max:  9m 52s | Hits: 287%/522   
  🟩 NVHPC              Pass: 100%/2   | Total: 13m 53s | Avg:  6m 56s | Max:  6m 57s
🟩 gpu
  🟩 rtx2080            Pass: 100%/20  | Total:  1h 51m | Avg:  5m 34s | Max: 12m 46s | Hits: 287%/522   
🟩 jobs
  🟩 Build              Pass: 100%/18  | Total:  1h 26m | Avg:  4m 47s | Max:  9m 52s | Hits: 287%/522   
  🟩 Test               Pass: 100%/2   | Total: 24m 59s | Avg: 12m 29s | Max: 12m 46s
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  🟩 90a                Pass: 100%/1   | Total:  3m 14s | Avg:  3m 14s | Max:  3m 14s
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  🟩 17                 Pass: 100%/4   | Total: 17m 15s | Avg:  4m 18s | Max:  6m 57s
  🟩 20                 Pass: 100%/16  | Total:  1h 34m | Avg:  5m 52s | Max: 12m 46s | Hits: 287%/522

🟩 cccl_c_parallel: Pass: 100%/2 | Total: 7m 26s | Avg: 3m 43s | Max: 5m 08s

🟩 cpu
  🟩 amd64              Pass: 100%/2   | Total:  7m 26s | Avg:  3m 43s | Max:  5m 08s
🟩 ctk
  🟩 12.8               Pass: 100%/2   | Total:  7m 26s | Avg:  3m 43s | Max:  5m 08s
🟩 cudacxx
  🟩 nvcc12.8           Pass: 100%/2   | Total:  7m 26s | Avg:  3m 43s | Max:  5m 08s
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/2   | Total:  7m 26s | Avg:  3m 43s | Max:  5m 08s
🟩 cxx
  🟩 GCC13              Pass: 100%/2   | Total:  7m 26s | Avg:  3m 43s | Max:  5m 08s
🟩 cxx_family
  🟩 GCC                Pass: 100%/2   | Total:  7m 26s | Avg:  3m 43s | Max:  5m 08s
🟩 gpu
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🟩 jobs
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  🟩 Test               Pass: 100%/1   | Total:  5m 08s | Avg:  5m 08s | Max:  5m 08s

🟩 python: Pass: 100%/1 | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s

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  🟩 12.8               Pass: 100%/1   | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s
🟩 cudacxx
  🟩 nvcc12.8           Pass: 100%/1   | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/1   | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s
🟩 cxx
  🟩 GCC13              Pass: 100%/1   | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s
🟩 cxx_family
  🟩 GCC                Pass: 100%/1   | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s
🟩 gpu
  🟩 rtx2080            Pass: 100%/1   | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s
🟩 jobs
  🟩 Test               Pass: 100%/1   | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s

👃 Inspect Changes

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	Project
	CCCL Infrastructure
+/-	libcu++
	CUB
+/-	Thrust
	CUDA Experimental
	python
	CCCL C Parallel Library
	Catch2Helper

Modifications in project or dependencies?

	Project
	CCCL Infrastructure
+/-	libcu++
+/-	CUB
+/-	Thrust
+/-	CUDA Experimental
+/-	python
+/-	CCCL C Parallel Library
+/-	Catch2Helper

🏃‍ Runner counts (total jobs: 151)

#	Runner
108	`linux-amd64-cpu16`
15	`windows-amd64-cpu16`
10	`linux-arm64-cpu16`
8	`linux-amd64-gpu-rtx2080-latest-1`
6	`linux-amd64-gpu-rtxa6000-latest-1`
3	`linux-amd64-gpu-rtx4090-latest-1`
1	`linux-amd64-gpu-h100-latest-1`

Co-authored-by: Michael Schellenberger Costa <miscco@nvidia.com>

…te thrust::identity (#3649) (#3693) * Fix transform_iterator<identity> and drop result_of_adaptable_function (#3652) Thrust's transform_iterator relied on thrust::identity<T>::result_type via result_of_adaptable_function to avoid dangling references. However, thrust::identity<void>, cuda::std::identity, and the placeholder expression _1 have the same issue without a workaround. This change centralizes and adds workarounds for all of these by introducing a new trait thrust::detail::transform_iterator_reference, which decays the return value type of any of the aforementioned function objects. * Deprecate and replace thrust::identity (#3649) Co-authored-by: Michael Schellenberger Costa <miscco@nvidia.com>

miscco approved these changes Feb 3, 2025

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bernhardmgruber force-pushed the depr_identity branch from e379917 to 57761b7 Compare February 3, 2025 13:02

bernhardmgruber force-pushed the depr_identity branch 2 times, most recently from ae36312 to a2bf039 Compare February 3, 2025 17:12

bernhardmgruber force-pushed the depr_identity branch from a2bf039 to a2d33f0 Compare February 4, 2025 15:37

bernhardmgruber marked this pull request as ready for review February 4, 2025 15:50

bernhardmgruber requested review from a team as code owners February 4, 2025 15:50

bernhardmgruber requested review from ericniebler and gevtushenko February 4, 2025 15:50

bernhardmgruber force-pushed the depr_identity branch 3 times, most recently from 9fd8a2e to 89ba2df Compare February 4, 2025 23:11

bernhardmgruber and others added 8 commits February 5, 2025 10:34

Deprecate and replace thrust::identity

cd65c25

Fix test

fd77550

Resolve TODOs

f375445

Remove unused

ca5dcb8

Avoid warning on nodiscard

9d8569e

Remove unused

628452b

Remove unused type aliases

91d4bcc

NVHPC workarounds

1bfc5fd

bernhardmgruber force-pushed the depr_identity branch from 0162945 to 1bfc5fd Compare February 5, 2025 09:34

bernhardmgruber enabled auto-merge (squash) February 5, 2025 11:28

bernhardmgruber merged commit 0a578d5 into NVIDIA:main Feb 5, 2025
162 of 165 checks passed

bernhardmgruber deleted the depr_identity branch February 5, 2025 11:31

bernhardmgruber added a commit to bernhardmgruber/cccl that referenced this pull request Feb 5, 2025

Deprecate and replace thrust::identity (NVIDIA#3649)

30d567b

Co-authored-by: Michael Schellenberger Costa <miscco@nvidia.com>

bernhardmgruber added the backport branch/2.8.x label Feb 5, 2025

bernhardmgruber mentioned this pull request Feb 5, 2025

Backport to 2.8: Fix transform_iterator<identity> (#3652) and Deprecate thrust::identity (#3649) #3693

Merged

bernhardmgruber linked an issue Feb 5, 2025 that may be closed by this pull request

Replace use of thrust::identity by cuda::std::identity #2762

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Deprecate and replace thrust::identity#3649

Deprecate and replace thrust::identity#3649
bernhardmgruber merged 8 commits intoNVIDIA:mainfrom
bernhardmgruber:depr_identity

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🟩 cub: Pass: 100%/44 | Total: 1d 18h | Avg: 57m 28s | Max: 1h 22m | Hits: 89%/4168

🟩 thrust: Pass: 100%/43 | Total: 1d 03h | Avg: 38m 02s | Max: 1h 17m | Hits: 164%/9230

🟩 libcudacxx: Pass: 100%/41 | Total: 14h 38m | Avg: 21m 25s | Max: 1h 02m | Hits: 679%/10273

🟩 cudax: Pass: 100%/20 | Total: 1h 51m | Avg: 5m 34s | Max: 12m 46s | Hits: 287%/522

🟩 cccl_c_parallel: Pass: 100%/2 | Total: 7m 26s | Avg: 3m 43s | Max: 5m 08s

🟩 python: Pass: 100%/1 | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s

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🟩 cub: Pass: 100%/44 | Total: 1d 18h | Avg: 57m 28s | Max: 1h 22m | Hits: 89%/4168

🟩 thrust: Pass: 100%/43 | Total: 1d 03h | Avg: 38m 02s | Max: 1h 17m | Hits: 164%/9230

🟩 libcudacxx: Pass: 100%/41 | Total: 14h 38m | Avg: 21m 25s | Max: 1h 02m | Hits: 679%/10273

🟩 cudax: Pass: 100%/20 | Total: 1h 51m | Avg: 5m 34s | Max: 12m 46s | Hits: 287%/522

🟩 cccl_c_parallel: Pass: 100%/2 | Total: 7m 26s | Avg: 3m 43s | Max: 5m 08s

🟩 python: Pass: 100%/1 | Total: 26m 34s | Avg: 26m 34s | Max: 26m 34s

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bernhardmgruber commented Feb 3, 2025 •

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