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Merged
bernhardmgruber merged 4 commits into from
Nov 23, 2025
Merged

Backport changes for XGBoost compatibility #6727

bernhardmgruber merged 4 commits into from
Nov 23, 2025

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@bdice
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@bdice bdice commented Nov 21, 2025 •
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Summary

Backporting changes from PRs #5252, #5440, and #6451. These are needed to compile xgboost with CCCL 3.1.x.

Test plan

  • Build RMM artifacts with these changes
  • Validate XGBoost compilation with CCCL 3.1.x and new RMM artifacts

@bdice bdice requested review from a team as code owners November 21, 2025 18:27
@bdice bdice requested review from gevtushenko and shwina November 21, 2025 18:27
@github-project-automation github-project-automation bot moved this to Todo in CCCL Nov 21, 2025
@cccl-authenticator-app cccl-authenticator-app bot moved this from Todo to In Review in CCCL Nov 21, 2025
@bdice bdice requested a review from trxcllnt November 21, 2025 18:28
@bdice bdice mentioned this pull request Nov 21, 2025
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@bernhardmgruber
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bernhardmgruber commented Nov 21, 2025

Backporting changes from PRs #5252, #5440, and #6451. These are needed to compile xgboost with CCCL 3.1.x.

That's fine. What confuses me is that I should see 3 commits that are cherry-picked from the main branch. Can you please check the commits you are proposing? Something is odd.

@bdice
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bdice commented Nov 21, 2025 •
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I got these patches from @trxcllnt. @trxcllnt Can you answer @bernhardmgruber's question?

I believe the answer is that the commits on main don't apply cleanly, so Paul pieced this together from a partial rebase, but I'm not sure.

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github-actions bot commented Nov 21, 2025

🟩 CI finished in 2h 02m: Pass: 100%/157 | Total: 3d 19h | Avg: 35m 04s | Max: 1h 49m | Hits: 77%/173046

  • 🟩 cub: Pass: 100%/50 | Total: 2d 02h | Avg: 1h 00m | Max: 1h 49m | Hits: 68%/61654 

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  🟩 MSVC14.29          Pass: 100%/2   | Total:  3h 23m | Avg:  1h 41m | Max:  1h 45m | Hits:  62%/2304  
  🟩 MSVC14.43          Pass: 100%/4   | Total:  6h 07m | Avg:  1h 31m | Max:  1h 49m | Hits:  62%/4608  
  🟩 NVHPC25.5          Pass: 100%/2   | Total:  2h 26m | Avg:  1h 13m | Max:  1h 15m | Hits:  56%/2313  
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  🟩 GCC                Pass: 100%/23  | Total: 21h 08m | Avg: 55m 08s | Max:  1h 15m | Hits:  72%/28915 
  🟩 MSVC               Pass: 100%/6   | Total:  9h 31m | Avg:  1h 35m | Max:  1h 49m | Hits:  62%/6912  
  🟩 NVHPC              Pass: 100%/2   | Total:  2h 26m | Avg:  1h 13m | Max:  1h 15m | Hits:  56%/2313  
🟩 gpu
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  🟩 rtx2080            Pass: 100%/39  | Total:  1d 19h | Avg:  1h 06m | Max:  1h 49m | Hits:  62%/47822 
  🟩 rtxa6000           Pass: 100%/8   | Total:  5h 43m | Avg: 42m 54s | Max:  1h 05m | Hits:  90%/10058 
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  🟩 HostLaunch         Pass: 100%/3   | Total:  1h 38m | Avg: 32m 41s | Max: 40m 17s | Hits:  99%/3772  
  🟩 TestGPU            Pass: 100%/3   | Total:  1h 44m | Avg: 34m 53s | Max: 42m 13s | Hits:  99%/3772  
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  • 🟩 thrust: Pass: 100%/50 | Total: 1d 09h | Avg: 39m 46s | Max: 1h 18m | Hits: 80%/95771 

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🟩 cpu
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🟩 ctk
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  🟩 12.9               Pass: 100%/45  | Total:  1d 05h | Avg: 39m 18s | Max:  1h 18m | Hits:  80%/86196 
🟩 cudacxx
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  🟩 nvcc12.0           Pass: 100%/5   | Total:  3h 39m | Avg: 43m 58s | Max:  1h 14m | Hits:  77%/9575  
  🟩 nvcc12.9           Pass: 100%/43  | Total:  1d 04h | Avg: 39m 48s | Max:  1h 18m | Hits:  80%/82364 
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  🟩 nvcc               Pass: 100%/48  | Total:  1d 08h | Avg: 40m 14s | Max:  1h 18m | Hits:  80%/91939 
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  🟩 Clang16            Pass: 100%/2   | Total:  1h 11m | Avg: 35m 59s | Max: 36m 27s | Hits:  74%/3832  
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  🟩 GCC11              Pass: 100%/2   | Total:  1h 21m | Avg: 40m 56s | Max: 41m 18s | Hits:  80%/3834  
  🟩 GCC12              Pass: 100%/2   | Total:  1h 28m | Avg: 44m 25s | Max: 46m 06s | Hits:  80%/3834  
  🟩 GCC13              Pass: 100%/11  | Total:  4h 58m | Avg: 27m 08s | Max: 46m 14s | Hits:  87%/21087 
  🟩 MSVC14.29          Pass: 100%/2   | Total:  2h 28m | Avg:  1h 14m | Max:  1h 14m | Hits:  75%/3818  
  🟩 MSVC14.43          Pass: 100%/5   | Total:  5h 11m | Avg:  1h 02m | Max:  1h 18m | Hits:  79%/9545  
  🟩 NVHPC25.5          Pass: 100%/2   | Total:  2h 17m | Avg:  1h 08m | Max:  1h 09m | Hits:  71%/3830  
🟩 cxx_family
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  🟩 GCC                Pass: 100%/22  | Total: 12h 39m | Avg: 34m 30s | Max: 46m 14s | Hits:  82%/42174 
  🟩 MSVC               Pass: 100%/7   | Total:  7h 39m | Avg:  1h 05m | Max:  1h 18m | Hits:  78%/13363 
  🟩 NVHPC              Pass: 100%/2   | Total:  2h 17m | Avg:  1h 08m | Max:  1h 09m | Hits:  71%/3830  
🟩 gpu
  🟩 h100               Pass: 100%/2   | Total: 33m 43s | Avg: 16m 51s | Max: 22m 34s | Hits:  90%/3834  
  🟩 rtx2080            Pass: 100%/38  | Total:  1d 03h | Avg: 43m 57s | Max:  1h 16m | Hits:  77%/72786 
  🟩 rtx4090            Pass: 100%/10  | Total:  4h 44m | Avg: 28m 27s | Max:  1h 18m | Hits:  91%/19151 
🟩 jobs
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  🟩 TestCPU            Pass: 100%/3   | Total: 54m 50s | Avg: 18m 16s | Max: 37m 43s | Hits:  99%/5742  
  🟩 TestGPU            Pass: 100%/4   | Total: 49m 38s | Avg: 12m 24s | Max: 14m 46s | Hits:  99%/7667  
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  🟩 20                 Pass: 100%/27  | Total: 16h 06m | Avg: 35m 48s | Max:  1h 18m | Hits:  82%/51714

  • 🟩 cudax: Pass: 100%/28 | Total: 3h 53m | Avg: 8m 19s | Max: 18m 22s | Hits: 89%/15126 

    🟩 cpu
  🟩 amd64              Pass: 100%/24  | Total:  3h 29m | Avg:  8m 43s | Max: 18m 22s | Hits:  89%/12794 
  🟩 arm64              Pass: 100%/4   | Total: 23m 38s | Avg:  5m 54s | Max:  6m 44s | Hits:  90%/2332  
🟩 ctk
  🟩 12.0               Pass: 100%/3   | Total: 27m 16s | Avg:  9m 05s | Max: 17m 30s | Hits:  87%/1448  
  🟩 12.9               Pass: 100%/25  | Total:  3h 25m | Avg:  8m 14s | Max: 18m 22s | Hits:  89%/13678 
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  🟩 nvcc12.9           Pass: 100%/25  | Total:  3h 25m | Avg:  8m 14s | Max: 18m 22s | Hits:  89%/13678 
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  🟩 Clang15            Pass: 100%/1   | Total:  5m 58s | Avg:  5m 58s | Max:  5m 58s | Hits:  90%/583   
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  🟩 GCC13              Pass: 100%/8   | Total: 58m 23s | Avg:  7m 17s | Max: 15m 52s | Hits:  92%/4664  
  🟩 MSVC14.39          Pass: 100%/1   | Total: 17m 30s | Avg: 17m 30s | Max: 17m 30s | Hits:  77%/282   
  🟩 MSVC14.43          Pass: 100%/3   | Total: 54m 18s | Avg: 18m 06s | Max: 18m 22s | Hits:  77%/852   
  🟩 NVHPC25.5          Pass: 100%/2   | Total: 19m 59s | Avg:  9m 59s | Max: 10m 24s | Hits:  76%/1162  
🟩 cxx_family
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  🟩 GCC                Pass: 100%/12  | Total:  1h 23m | Avg:  6m 55s | Max: 15m 52s | Hits:  91%/6998  
  🟩 MSVC               Pass: 100%/4   | Total:  1h 11m | Avg: 17m 57s | Max: 18m 22s | Hits:  77%/1134  
  🟩 NVHPC              Pass: 100%/2   | Total: 19m 59s | Avg:  9m 59s | Max: 10m 24s | Hits:  76%/1162  
🟩 gpu
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  🟩 rtx2080            Pass: 100%/26  | Total:  3h 41m | Avg:  8m 31s | Max: 18m 22s | Hits:  88%/13960 
🟩 jobs
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  🟩 Test               Pass: 100%/3   | Total: 30m 32s | Avg: 10m 10s | Max: 15m 52s | Hits:  99%/1749  
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  🟩 20                 Pass: 100%/25  | Total:  3h 31m | Avg:  8m 27s | Max: 18m 22s | Hits:  89%/13379

  • 🟩 python: Pass: 100%/18 | Total: 3h 09m | Avg: 10m 32s | Max: 20m 35s

     
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  🟩 nvcc12.9           Pass: 100%/18  | Total:  3h 09m | Avg: 10m 32s | Max: 20m 35s
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/18  | Total:  3h 09m | Avg: 10m 32s | Max: 20m 35s
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  • 🟩 packaging: Pass: 100%/4 | Total: 20m 42s | Avg: 5m 10s | Max: 7m 27s

     
    🟩 cpu
  🟩 amd64              Pass: 100%/4   | Total: 20m 42s | Avg:  5m 10s | Max:  7m 27s
🟩 ctk
  🟩 12.0               Pass: 100%/2   | Total: 11m 53s | Avg:  5m 56s | Max:  7m 27s
  🟩 12.9               Pass: 100%/2   | Total:  8m 49s | Avg:  4m 24s | Max:  4m 56s
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  🟩 nvcc12.9           Pass: 100%/2   | Total:  8m 49s | Avg:  4m 24s | Max:  4m 56s
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  🟩 nvcc               Pass: 100%/4   | Total: 20m 42s | Avg:  5m 10s | Max:  7m 27s
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  🟩 Test               Pass: 100%/2   | Total: 25m 49s | Avg: 12m 54s | Max: 15m 00s | Hits:  98%/330

👃 Inspect Changes

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CCCL Packaging
libcu++
+/- CUB
Thrust
CUDA Experimental
stdpar
python
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Catch2Helper

Modifications in project or dependencies?

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

🏃‍ Runner counts (total jobs: 157)
# Runner
93 linux-amd64-cpu16
17 windows-amd64-cpu16
14 linux-amd64-gpu-rtxa6000-latest-1
13 linux-amd64-gpu-h100-latest-1
10 linux-arm64-cpu16
7 linux-amd64-gpu-rtx2080-latest-1
3 linux-amd64-gpu-rtx4090-latest-1

elstehle and others added 3 commits November 21, 2025 15:18
@elstehle @bdice
Adds support for large number of items to `DeviceRunLengthEncode::Non…
5a86721 
…TrivialRuns` (NVIDIA#5252)

* streaming non trivial runs

* change global offset computation

* fixes style

* integrate latest bench and test changes

* addresses review comments

* replaces getters with member var
@elstehle @bdice
Add support for virtual shared memory to DispatchReduceByKey (NVIDI…
1d6ec8f 
…A#5440)

* adds vsmem to reduce_by_key

* adds tests for vsmem

* fixes rle, which does not support vsmem yet

* addresses review comments
@elstehle @miscco @bdice
Fixes non-default-constructible iterators for large number of items t…
1776c74 
…ypes in `DeviceRunLengthEncode::Encode` (NVIDIA#6451)

* adds tests for non default constructible iterators

* fixes non default constructible iterators in rle

* Simplify generation of `streaming_context` for run_length_encode

* Reinstate regression test

---------

Co-authored-by: Michael Schellenberger Costa <miscco@nvidia.com>
@bdice
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bdice commented Nov 21, 2025

Answering the above question: the only difference is that the patches I got earlier did not include a few changes in cub/benchmarks or cub/tests. I think those should be included here, though they weren't included in the original source of these patches (tests and benchmarks weren't being run there, so a minimal patch was acceptable). I am going to force-push this PR with the original commits as cherry-picks.

@bdice bdice force-pushed the xgboost-backport-fixes branch from bd34a2b to 1776c74 Compare November 21, 2025 21:21
@bdice
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bdice commented Nov 21, 2025 •
edited
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This is ready for review.

I validated downstream that this fixes xgboost builds.

I am still verifying that all of RAPIDS 25.12 builds and that cuDF passes tests with these changes, but I expect that to be done shortly.

@bdice bdice mentioned this pull request Nov 21, 2025
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github-actions bot commented Nov 21, 2025

🟩 CI finished in 1h 30m: Pass: 100%/157 | Total: 1d 05h | Avg: 11m 22s | Max: 42m 16s | Hits: 99%/173046

  • 🟩 cub: Pass: 100%/50 | Total: 12h 26m | Avg: 14m 55s | Max: 42m 16s | Hits: 99%/61654 

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  🟩 Clang              Pass: 100%/10  | Total: 34m 50s | Avg:  3m 29s | Max:  8m 03s | Hits: 100%/5832  
  🟩 GCC                Pass: 100%/12  | Total: 53m 39s | Avg:  4m 28s | Max: 12m 00s | Hits:  99%/6998  
  🟩 MSVC               Pass: 100%/4   | Total:  1h 03m | Avg: 15m 48s | Max: 17m 11s | Hits:  95%/1134  
  🟩 NVHPC              Pass: 100%/2   | Total: 14m 02s | Avg:  7m 01s | Max:  7m 01s | Hits:  96%/1162  
🟩 gpu
  🟩 h100               Pass: 100%/2   | Total:  9m 26s | Avg:  4m 43s | Max:  6m 31s | Hits:  99%/1166  
  🟩 rtx2080            Pass: 100%/26  | Total:  2h 36m | Avg:  6m 00s | Max: 17m 11s | Hits:  99%/13960 
🟩 jobs
  🟩 Build              Pass: 100%/25  | Total:  2h 19m | Avg:  5m 34s | Max: 17m 11s | Hits:  99%/13377 
  🟩 Test               Pass: 100%/3   | Total: 26m 34s | Avg:  8m 51s | Max: 12m 00s | Hits:  99%/1749  
🟩 sm
  🟩 90                 Pass: 100%/2   | Total:  9m 26s | Avg:  4m 43s | Max:  6m 31s | Hits:  99%/1166  
  🟩 90;90a             Pass: 100%/2   | Total: 20m 39s | Avg: 10m 19s | Max: 17m 11s | Hits:  98%/867   
  🟩 100;120            Pass: 100%/2   | Total: 18m 07s | Avg:  9m 03s | Max: 14m 44s | Hits:  98%/867   
🟩 std
  🟩 17                 Pass: 100%/3   | Total: 13m 29s | Avg:  4m 29s | Max:  7m 01s | Hits:  98%/1747  
  🟩 20                 Pass: 100%/25  | Total:  2h 32m | Avg:  6m 05s | Max: 17m 11s | Hits:  99%/13379

  • 🟩 python: Pass: 100%/18 | Total: 3h 41m | Avg: 12m 17s | Max: 34m 04s

     
    🟩 cpu
  🟩 amd64              Pass: 100%/18  | Total:  3h 41m | Avg: 12m 17s | Max: 34m 04s
🟩 ctk
  🟩 12.9               Pass: 100%/18  | Total:  3h 41m | Avg: 12m 17s | Max: 34m 04s
🟩 cudacxx
  🟩 nvcc12.9           Pass: 100%/18  | Total:  3h 41m | Avg: 12m 17s | Max: 34m 04s
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/18  | Total:  3h 41m | Avg: 12m 17s | Max: 34m 04s
🟩 cxx
  🟩 GCC13              Pass: 100%/18  | Total:  3h 41m | Avg: 12m 17s | Max: 34m 04s
🟩 cxx_family
  🟩 GCC                Pass: 100%/18  | Total:  3h 41m | Avg: 12m 17s | Max: 34m 04s
🟩 gpu
  🟩 h100               Pass: 100%/8   | Total:  1h 14m | Avg:  9m 19s | Max: 15m 40s
  🟩 rtxa6000           Pass: 100%/10  | Total:  2h 26m | Avg: 14m 38s | Max: 34m 04s
🟩 jobs
  🟩 Build cuda.cccl    Pass: 100%/2   | Total: 16m 46s | Avg:  8m 23s | Max:  8m 25s
  🟩 Test cuda.cccl.cooperative Pass: 100%/4   | Total:  1h 06m | Avg: 16m 34s | Max: 22m 50s
  🟩 Test cuda.cccl.examples Pass: 100%/4   | Total: 22m 08s | Avg:  5m 32s | Max:  6m 09s
  🟩 Test cuda.cccl.headers Pass: 100%/4   | Total: 48m 26s | Avg: 12m 06s | Max: 34m 04s
  🟩 Test cuda.cccl.parallel Pass: 100%/4   | Total:  1h 07m | Avg: 16m 52s | Max: 18m 34s
🟩 py_version
  🟩 3.10               Pass: 100%/9   | Total:  2h 04m | Avg: 13m 47s | Max: 34m 04s
  🟩 3.13               Pass: 100%/9   | Total:  1h 37m | Avg: 10m 47s | Max: 22m 50s

  • 🟩 packaging: Pass: 100%/4 | Total: 14m 55s | Avg: 3m 43s | Max: 3m 59s

     
    🟩 cpu
  🟩 amd64              Pass: 100%/4   | Total: 14m 55s | Avg:  3m 43s | Max:  3m 59s
🟩 ctk
  🟩 12.0               Pass: 100%/2   | Total:  7m 17s | Avg:  3m 38s | Max:  3m 43s
  🟩 12.9               Pass: 100%/2   | Total:  7m 38s | Avg:  3m 49s | Max:  3m 59s
🟩 cudacxx
  🟩 nvcc12.0           Pass: 100%/2   | Total:  7m 17s | Avg:  3m 38s | Max:  3m 43s
  🟩 nvcc12.9           Pass: 100%/2   | Total:  7m 38s | Avg:  3m 49s | Max:  3m 59s
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/4   | Total: 14m 55s | Avg:  3m 43s | Max:  3m 59s
🟩 cxx
  🟩 Clang14            Pass: 100%/1   | Total:  3m 34s | Avg:  3m 34s | Max:  3m 34s
  🟩 Clang19            Pass: 100%/1   | Total:  3m 59s | Avg:  3m 59s | Max:  3m 59s
  🟩 GCC12              Pass: 100%/1   | Total:  3m 43s | Avg:  3m 43s | Max:  3m 43s
  🟩 GCC13              Pass: 100%/1   | Total:  3m 39s | Avg:  3m 39s | Max:  3m 39s
🟩 cxx_family
  🟩 Clang              Pass: 100%/2   | Total:  7m 33s | Avg:  3m 46s | Max:  3m 59s
  🟩 GCC                Pass: 100%/2   | Total:  7m 22s | Avg:  3m 41s | Max:  3m 43s
🟩 gpu
  🟩 rtx2080            Pass: 100%/4   | Total: 14m 55s | Avg:  3m 43s | Max:  3m 59s
🟩 jobs
  🟩 Test               Pass: 100%/4   | Total: 14m 55s | Avg:  3m 43s | Max:  3m 59s

  • 🟩 stdpar: Pass: 100%/4 | Total: 13m 59s | Avg: 3m 29s | Max: 3m 36s

     
    🟩 cpu
  🟩 amd64              Pass: 100%/2   | Total:  7m 02s | Avg:  3m 31s | Max:  3m 36s
  🟩 arm64              Pass: 100%/2   | Total:  6m 57s | Avg:  3m 28s | Max:  3m 29s
🟩 ctk
  🟩 12.9               Pass: 100%/4   | Total: 13m 59s | Avg:  3m 29s | Max:  3m 36s
🟩 cudacxx
  🟩 nvcc12.9           Pass: 100%/4   | Total: 13m 59s | Avg:  3m 29s | Max:  3m 36s
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/4   | Total: 13m 59s | Avg:  3m 29s | Max:  3m 36s
🟩 cxx
  🟩 NVHPC25.5          Pass: 100%/4   | Total: 13m 59s | Avg:  3m 29s | Max:  3m 36s
🟩 cxx_family
  🟩 NVHPC              Pass: 100%/4   | Total: 13m 59s | Avg:  3m 29s | Max:  3m 36s
🟩 gpu
  🟩 rtx2080            Pass: 100%/4   | Total: 13m 59s | Avg:  3m 29s | Max:  3m 36s
🟩 jobs
  🟩 Build              Pass: 100%/4   | Total: 13m 59s | Avg:  3m 29s | Max:  3m 36s
🟩 std
  🟩 17                 Pass: 100%/2   | Total:  7m 04s | Avg:  3m 32s | Max:  3m 36s
  🟩 20                 Pass: 100%/2   | Total:  6m 55s | Avg:  3m 27s | Max:  3m 29s

  • 🟩 cccl_c_parallel: Pass: 100%/3 | Total: 27m 00s | Avg: 9m 00s | Max: 13m 49s | Hits: 98%/495 

    🟩 cpu
  🟩 amd64              Pass: 100%/3   | Total: 27m 00s | Avg:  9m 00s | Max: 13m 49s | Hits:  98%/495   
🟩 ctk
  🟩 12.9               Pass: 100%/3   | Total: 27m 00s | Avg:  9m 00s | Max: 13m 49s | Hits:  98%/495   
🟩 cudacxx
  🟩 nvcc12.9           Pass: 100%/3   | Total: 27m 00s | Avg:  9m 00s | Max: 13m 49s | Hits:  98%/495   
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/3   | Total: 27m 00s | Avg:  9m 00s | Max: 13m 49s | Hits:  98%/495   
🟩 cxx
  🟩 GCC13              Pass: 100%/3   | Total: 27m 00s | Avg:  9m 00s | Max: 13m 49s | Hits:  98%/495   
🟩 cxx_family
  🟩 GCC                Pass: 100%/3   | Total: 27m 00s | Avg:  9m 00s | Max: 13m 49s | Hits:  98%/495   
🟩 gpu
  🟩 h100               Pass: 100%/1   | Total: 11m 17s | Avg: 11m 17s | Max: 11m 17s | Hits:  98%/165   
  🟩 rtx2080            Pass: 100%/2   | Total: 15m 43s | Avg:  7m 51s | Max: 13m 49s | Hits:  98%/330   
🟩 jobs
  🟩 Build              Pass: 100%/1   | Total:  1m 54s | Avg:  1m 54s | Max:  1m 54s | Hits:  98%/165   
  🟩 Test               Pass: 100%/2   | Total: 25m 06s | Avg: 12m 33s | Max: 13m 49s | Hits:  98%/330

👃 Inspect Changes

Modifications in project?

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

Modifications in project or dependencies?

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

🏃‍ Runner counts (total jobs: 157)
# Runner
93 linux-amd64-cpu16
17 windows-amd64-cpu16
14 linux-amd64-gpu-rtxa6000-latest-1
13 linux-amd64-gpu-h100-latest-1
10 linux-arm64-cpu16
7 linux-amd64-gpu-rtx2080-latest-1
3 linux-amd64-gpu-rtx4090-latest-1

@bernhardmgruber
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bernhardmgruber commented Nov 23, 2025

Thank you for changing the PR to use proper cherry-picks. May I ask why the last commit, f72b1c7, is necessary? This seems to not come from a commit on main.

@bdice
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bdice commented Nov 23, 2025

@bernhardmgruber The cherry-picked commits are missing a number of other changes on the main branch that are needed to compile the tests and benchmarks that were added in the original PRs. I have added all the relevant library/header changes but CI fails without commit f72b1c7. I do not know how to adapt those tests/benchmarks to compile properly so I removed them. This PR’s total diff is exactly equivalent to what @trxcllnt has used in internal builds of XGBoost and other libraries so we believe it is correct and safe to merge.

@bernhardmgruber bernhardmgruber merged commit d69eb55 into NVIDIA:branch/3.1.x Nov 23, 2025
168 checks passed
@github-project-automation github-project-automation bot moved this from In Review to Done in CCCL Nov 23, 2025
rockhowse pushed a commit to rapidsai/rapids-cmake that referenced this pull request Nov 24, 2025
@bdice
Update CCCL to get backports for XGBoost compatibility (#944)
0693c92 
Admin merging per approval of `build-eng`

Updates CCCL to get backports needed for XGBoost compatibility with CCCL
3.1.x.

Depends on NVIDIA/cccl#6727
@jakirkham jakirkham mentioned this pull request Nov 24, 2025
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@bernhardmgruber bernhardmgruber bernhardmgruber approved these changes

@shwina shwina Awaiting requested review from shwina shwina is a code owner automatically assigned from NVIDIA/cccl-benchmark-codeowners

@gevtushenko gevtushenko Awaiting requested review from gevtushenko gevtushenko is a code owner automatically assigned from NVIDIA/cccl-cub-codeowners

@trxcllnt trxcllnt Awaiting requested review from trxcllnt

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@bdice @bernhardmgruber @elstehle