Add Histogram implementation for c.parallel #4689

NaderAlAwar · 2025-05-13T18:32:47Z

Description

closes #4600
should only be merged after #4636

Note that this currently only implements evenly spaced bins for 1 channel. The other features will be added later.

Checklist

New or existing tests cover these changes.
The documentation is up to date with these changes.

… separate class in the kernels file since it will be needed to instantiate the kernels

This reverts commit 7a6c329.

copy-pr-bot · 2025-05-13T18:32:58Z

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github-actions · 2025-05-13T19:30:28Z

🟨 CI finished in 56m 12s: Pass: 99%/129 | Total: 20h 46m | Avg: 9m 39s | Max: 31m 54s | Hits: 98%/155107

🟨 cub: Pass: 97%/47 | Total: 9h 16m | Avg: 11m 50s | Max: 26m 22s | Hits: 98%/56033

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  🔍 NVHPC              Pass:  50%/2   | Total: 25m 58s | Avg: 12m 59s | Max: 13m 01s | Hits:  96%/1148  
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🟩 cmake_options
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  🟩 nvcc               Pass: 100%/45  | Total:  7h 33m | Avg: 10m 04s | Max: 31m 54s | Hits:  98%/80496 
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  🟩 GCC13              Pass: 100%/10  | Total:  1h 39m | Avg:  9m 54s | Max: 31m 01s | Hits:  94%/17900 
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  🟩 MSVC14.42          Pass: 100%/3   | Total:  1h 13m | Avg: 24m 39s | Max: 26m 54s | Hits:  99%/5349  
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🟩 jobs
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  🟩 TestGPU            Pass: 100%/4   | Total:  1h 03m | Avg: 15m 57s | Max: 31m 01s | Hits:  87%/7159  
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🟩 cudax: Pass: 100%/26 | Total: 2h 19m | Avg: 5m 21s | Max: 11m 29s | Hits: 99%/14668

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  🟩 arm64              Pass: 100%/4   | Total: 14m 01s | Avg:  3m 30s | Max:  3m 48s | Hits:  99%/2348  
🟩 ctk
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  🟩 12.8               Pass: 100%/23  | Total:  2h 01m | Avg:  5m 16s | Max: 11m 29s | Hits:  99%/13202 
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  🟩 GCC                Pass: 100%/12  | Total: 56m 58s | Avg:  4m 44s | Max:  9m 39s | Hits:  99%/7048  
  🟩 MSVC               Pass: 100%/2   | Total: 21m 42s | Avg: 10m 51s | Max: 11m 29s | Hits:  95%/576   
  🟩 NVHPC              Pass: 100%/2   | Total: 16m 36s | Avg:  8m 18s | Max:  8m 25s | Hits:  97%/1170  
🟩 gpu
  🟩 h100               Pass: 100%/2   | Total: 11m 57s | Avg:  5m 58s | Max:  8m 12s | Hits:  99%/1174  
  🟩 rtx2080            Pass: 100%/24  | Total:  2h 07m | Avg:  5m 18s | Max: 11m 29s | Hits:  99%/13494 
🟩 jobs
  🟩 Build              Pass: 100%/23  | Total:  1h 53m | Avg:  4m 56s | Max: 11m 29s | Hits:  98%/12907 
  🟩 Test               Pass: 100%/3   | Total: 25m 22s | Avg:  8m 27s | Max:  9m 39s | Hits:  99%/1761  
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  🟩 90a                Pass: 100%/1   | Total:  3m 38s | Avg:  3m 38s | Max:  3m 38s | Hits:  99%/587   
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  🟩 20                 Pass: 100%/22  | Total:  2h 00m | Avg:  5m 27s | Max: 11m 29s | Hits:  99%/12322

🟩 stdpar: Pass: 100%/4 | Total: 19m 53s | Avg: 4m 58s | Max: 5m 56s

🟩 cpu
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  🟩 arm64              Pass: 100%/2   | Total:  9m 36s | Avg:  4m 48s | Max:  5m 56s
🟩 ctk
  🟩 12.8               Pass: 100%/4   | Total: 19m 53s | Avg:  4m 58s | Max:  5m 56s
🟩 cudacxx
  🟩 nvcc12.8           Pass: 100%/4   | Total: 19m 53s | Avg:  4m 58s | Max:  5m 56s
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/4   | Total: 19m 53s | Avg:  4m 58s | Max:  5m 56s
🟩 cxx
  🟩 NVHPC25.3          Pass: 100%/4   | Total: 19m 53s | Avg:  4m 58s | Max:  5m 56s
🟩 cxx_family
  🟩 NVHPC              Pass: 100%/4   | Total: 19m 53s | Avg:  4m 58s | Max:  5m 56s
🟩 gpu
  🟩 rtx2080            Pass: 100%/4   | Total: 19m 53s | Avg:  4m 58s | Max:  5m 56s
🟩 jobs
  🟩 Build              Pass: 100%/4   | Total: 19m 53s | Avg:  4m 58s | Max:  5m 56s
🟩 std
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  🟩 20                 Pass: 100%/2   | Total:  8m 50s | Avg:  4m 25s | Max:  5m 10s

🟩 python: Pass: 100%/3 | Total: 33m 10s | Avg: 11m 03s | Max: 19m 05s

🟩 cpu
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🟩 ctk
  🟩 12.8               Pass: 100%/3   | Total: 33m 10s | Avg: 11m 03s | Max: 19m 05s
🟩 cudacxx
  🟩 nvcc12.8           Pass: 100%/3   | Total: 33m 10s | Avg: 11m 03s | Max: 19m 05s
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/3   | Total: 33m 10s | Avg: 11m 03s | Max: 19m 05s
🟩 cxx
  🟩 GCC13              Pass: 100%/3   | Total: 33m 10s | Avg: 11m 03s | Max: 19m 05s
🟩 cxx_family
  🟩 GCC                Pass: 100%/3   | Total: 33m 10s | Avg: 11m 03s | Max: 19m 05s
🟩 gpu
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🟩 jobs
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  🟩 cuda.cooperative   Pass: 100%/1   | Total: 19m 05s | Avg: 19m 05s | Max: 19m 05s
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🟩 cccl_c_parallel: Pass: 100%/2 | Total: 32m 46s | Avg: 16m 23s | Max: 30m 02s | Hits: 97%/332

🟩 cpu
  🟩 amd64              Pass: 100%/2   | Total: 32m 46s | Avg: 16m 23s | Max: 30m 02s | Hits:  97%/332   
🟩 ctk
  🟩 12.8               Pass: 100%/2   | Total: 32m 46s | Avg: 16m 23s | Max: 30m 02s | Hits:  97%/332   
🟩 cudacxx
  🟩 nvcc12.8           Pass: 100%/2   | Total: 32m 46s | Avg: 16m 23s | Max: 30m 02s | Hits:  97%/332   
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/2   | Total: 32m 46s | Avg: 16m 23s | Max: 30m 02s | Hits:  97%/332   
🟩 cxx
  🟩 GCC13              Pass: 100%/2   | Total: 32m 46s | Avg: 16m 23s | Max: 30m 02s | Hits:  97%/332   
🟩 cxx_family
  🟩 GCC                Pass: 100%/2   | Total: 32m 46s | Avg: 16m 23s | Max: 30m 02s | Hits:  97%/332   
🟩 gpu
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🟩 jobs
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  🟩 Test               Pass: 100%/1   | Total: 30m 02s | Avg: 30m 02s | Max: 30m 02s | Hits:  98%/166

👃 Inspect Changes

Modifications in project?

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

Modifications in project or dependencies?

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

🏃‍ Runner counts (total jobs: 129)

#	Runner
89	`linux-amd64-cpu16`
11	`windows-amd64-cpu16`
10	`linux-arm64-cpu16`
6	`linux-amd64-gpu-rtx2080-latest-1`
6	`linux-amd64-gpu-rtxa6000-latest-1`
4	`linux-amd64-gpu-h100-latest-1`
3	`linux-amd64-gpu-rtx4090-latest-1`

NaderAlAwar added 28 commits May 1, 2025 22:21

Move histogram kernels to nvrtc compilable header

bf6b404

Implement dynamic dispatch for histogram. I moved the transforms to a…

c9f6cdb

… separate class in the kernels file since it will be needed to instantiate the kernels

Merge branch 'main' into histogram-dynamic-cub-dispatch

4dec1b0

Use different strategy to pass kernels

5502a47

Add initial c.parallel histogram implementation

ac3d31c

Continue implementing histogram

c9ab949

Make SampleT template parameter

0e6806c

Merge branch 'histogram-dynamic-cub-dispatch' into histogram-c-parallel

ec2633c

weird conflict in unique_by_key

7a6c329

Use new SampleT template parameter

afe411a

Merge branch 'histogram-dynamic-cub-dispatch' into histogram-c-parallel

e9ac6e4

Fix issue with macro

a7bc270

Merge branch 'histogram-dynamic-cub-dispatch' into histogram-c-parallel

57a091c

Revert "weird conflict in unique_by_key"

f1d9628

This reverts commit 7a6c329.

Make TransformsT a template parameter

86b86da

Merge branch 'histogram-dynamic-cub-dispatch' into histogram-c-parallel

b500558

Further fixes to fix compilation errors

b42d8e6

Set build elements and start with minimal test

a1eef4f

Get working version of histogram

55af8b1

Make type usage uniform

af6bacd

Add comment on our fixed choice of LevelT

c2921eb

Clean up code

3afd42e

Make counter type generic

7e6a08a

FUrther fixes to histogram

99f658a

Fix histogram test not working

d343d87

Make API test more clear

ce2760b

Expand test case

c4d06e8

Begin implementing histogram range

b1bcc35

NaderAlAwar requested review from a team as code owners May 13, 2025 18:32

NaderAlAwar requested review from oleksandr-pavlyk and elstehle May 13, 2025 18:32

github-project-automation bot added this to CCCL May 13, 2025

github-project-automation bot moved this to Todo in CCCL May 13, 2025

NaderAlAwar marked this pull request as draft May 13, 2025 18:32

cccl-authenticator-app bot moved this from Todo to In Progress in CCCL May 13, 2025

cccl-authenticator-app bot moved this from In Progress to In Review in CCCL May 13, 2025

NaderAlAwar added 3 commits May 15, 2025 00:23

Get counter and level types from inputs

9ba61f3

Make level arrays cccl_value_t instead of cccl_iterator_t

4bae19f

Make levels arrays cccl_value_t

e079de9

NaderAlAwar mentioned this pull request May 15, 2025

Add python wrappers for c.parallel histogram API #4709

Draft

2 tasks

NaderAlAwar and others added 5 commits May 16, 2025 22:08

Merge branch 'main' into histogram-dynamic-cub-dispatch

b8fbcec

Merge branch 'main' into histogram-dynamic-cub-dispatch

f826842

Address comments to improve readability

7174bfe

Merge branch 'histogram-dynamic-cub-dispatch' into histogram-c-parallel

25cc856

Remove unused variable

9b432fa

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Add Histogram implementation for c.parallel #4689

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🟨 cub: Pass: 97%/47 | Total: 9h 16m | Avg: 11m 50s | Max: 26m 22s | Hits: 98%/56033

🟩 thrust: Pass: 100%/47 | Total: 7h 44m | Avg: 9m 53s | Max: 31m 54s | Hits: 98%/84074

🟩 cudax: Pass: 100%/26 | Total: 2h 19m | Avg: 5m 21s | Max: 11m 29s | Hits: 99%/14668

🟩 stdpar: Pass: 100%/4 | Total: 19m 53s | Avg: 4m 58s | Max: 5m 56s

🟩 python: Pass: 100%/3 | Total: 33m 10s | Avg: 11m 03s | Max: 19m 05s

🟩 cccl_c_parallel: Pass: 100%/2 | Total: 32m 46s | Avg: 16m 23s | Max: 30m 02s | Hits: 97%/332

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🏃‍ Runner counts (total jobs: 129)

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Add Histogram implementation for c.parallel #4689

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NaderAlAwar commented May 13, 2025

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🟨 cub: Pass: 97%/47 | Total: 9h 16m | Avg: 11m 50s | Max: 26m 22s | Hits: 98%/56033

🟩 thrust: Pass: 100%/47 | Total: 7h 44m | Avg: 9m 53s | Max: 31m 54s | Hits: 98%/84074

🟩 cudax: Pass: 100%/26 | Total: 2h 19m | Avg: 5m 21s | Max: 11m 29s | Hits: 99%/14668

🟩 stdpar: Pass: 100%/4 | Total: 19m 53s | Avg: 4m 58s | Max: 5m 56s

🟩 python: Pass: 100%/3 | Total: 33m 10s | Avg: 11m 03s | Max: 19m 05s

🟩 cccl_c_parallel: Pass: 100%/2 | Total: 32m 46s | Avg: 16m 23s | Max: 30m 02s | Hits: 97%/332

👃 Inspect Changes

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Modifications in project or dependencies?

🏃‍ Runner counts (total jobs: 129)

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