[STF] reduce access mode #2830

caugonnet · 2024-11-15T13:23:06Z

Description

Introduce a reduce access mode to make it much easier to write parallel_for kernels which also perform some reductions to a logical data.

Checklist

I am familiar with the Contributing Guidelines.
New or existing tests cover these changes.
The documentation is up to date with these changes.

copy-pr-bot · 2024-11-15T13:23:10Z

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caugonnet · 2024-11-15T13:24:02Z

/ok to test

cudax/include/cuda/experimental/__stf/internal/parallel_for_scope.cuh

cudax/include/cuda/experimental/__stf/internal/task_dep.cuh

caugonnet · 2024-11-21T08:44:37Z

/ok to test

caugonnet · 2024-11-21T11:25:13Z

/ok to test

caugonnet · 2024-11-21T14:04:46Z

/ok to test

caugonnet · 2024-11-21T16:01:03Z

/ok to test

cudax/include/cuda/experimental/__stf/internal/parallel_for_scope.cuh

caugonnet · 2024-11-21T16:04:16Z

cudax/include/cuda/experimental/__stf/internal/parallel_for_scope.cuh

+  // Write the block's result to the output array
+  if (tid == 0)
+  {
+    tuple_set_op<tuple_ops>(redux_buffer[blockIdx.x], per_block_redux_buffer[0].get());


specialize if only one block...

caugonnet · 2024-11-22T14:52:31Z

/ok to test

caugonnet · 2024-11-22T14:53:08Z

/ok to test

caugonnet · 2024-11-22T16:30:35Z

/ok to test

caugonnet · 2024-11-22T22:29:45Z

/ok to test

caugonnet · 2024-11-23T07:08:27Z

/ok to test

caugonnet · 2024-11-23T09:02:18Z

/ok to test

caugonnet · 2024-11-23T09:45:43Z

/ok to test

caugonnet · 2024-11-23T09:57:15Z

/ok to test

caugonnet · 2024-11-23T10:21:47Z

/ok to test

github-actions · 2024-11-23T10:56:04Z

🟨 CI finished in 32m 02s: Pass: 88%/54 | Total: 10h 40m | Avg: 11m 51s | Max: 16m 04s | Hits: 90%/123

🟨 cudax: Pass: 88%/54 | Total: 10h 40m | Avg: 11m 51s | Max: 16m 04s | Hits: 90%/123

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  🟩 NVHPC24.7          Pass: 100%/2   | Total: 10m 27s | Avg:  5m 13s | Max:  5m 15s
🟨 cxx_family
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  🟨 v100               Pass:  88%/54  | Total: 10h 40m | Avg: 11m 51s | Max: 16m 04s | Hits:  90%/123   
🟨 jobs
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🟨 std
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  🟨 20                 Pass:  84%/25  | Total:  4h 59m | Avg: 11m 59s | Max: 15m 25s | Hits:  90%/123

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🏃‍ Runner counts (total jobs: 54)

#	Runner
43	`linux-amd64-cpu16`
5	`linux-amd64-gpu-v100-latest-1`
4	`linux-arm64-cpu16`
2	`windows-amd64-cpu16`

caugonnet · 2024-11-25T15:24:26Z

/ok to test

github-actions · 2024-11-25T16:30:22Z

🟨 CI finished in 1h 03m: Pass: 90%/54 | Total: 12h 24m | Avg: 13m 47s | Max: 19m 40s | Hits: 90%/246

🟨 cudax: Pass: 90%/54 | Total: 12h 24m | Avg: 13m 47s | Max: 19m 40s | Hits: 90%/246

🔍 cpu: amd64 🔍
  🔍 amd64              Pass:  90%/50  | Total: 11h 33m | Avg: 13m 51s | Max: 19m 40s | Hits:  90%/246   
  🟩 arm64              Pass: 100%/4   | Total: 51m 27s | Avg: 12m 51s | Max: 13m 53s
🚨 jobs: Test 🚨
  🟩 Build              Pass: 100%/49  | Total: 10h 54m | Avg: 13m 21s | Max: 16m 02s | Hits:  90%/246   
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🟨 ctk
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  🟩 NVHPC24.7          Pass: 100%/2   | Total: 13m 51s | Avg:  6m 55s | Max:  6m 56s
🟨 cxx_family
  🟨 Clang              Pass:  93%/30  | Total:  6h 59m | Avg: 13m 58s | Max: 19m 40s
  🟨 GCC                Pass:  85%/20  | Total:  4h 50m | Avg: 14m 31s | Max: 18m 02s
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  🟩 NVHPC              Pass: 100%/2   | Total: 13m 51s | Avg:  6m 55s | Max:  6m 56s
🟨 cudacxx_family
  🟨 nvcc               Pass:  90%/54  | Total: 12h 24m | Avg: 13m 47s | Max: 19m 40s | Hits:  90%/246   
🟨 gpu
  🟨 v100               Pass:  90%/54  | Total: 12h 24m | Avg: 13m 47s | Max: 19m 40s | Hits:  90%/246   
🟩 sm
  🟩 90                 Pass: 100%/1   | Total: 12m 49s | Avg: 12m 49s | Max: 12m 49s
  🟩 90a                Pass: 100%/1   | Total:  9m 29s | Avg:  9m 29s | Max:  9m 29s
🟨 std
  🟨 17                 Pass:  93%/29  | Total:  6h 33m | Avg: 13m 33s | Max: 18m 02s
  🟨 20                 Pass:  88%/25  | Total:  5h 51m | Avg: 14m 03s | Max: 19m 40s | Hits:  90%/246

👃 Inspect Changes

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🏃‍ Runner counts (total jobs: 54)

#	Runner
43	`linux-amd64-cpu16`
5	`linux-amd64-gpu-v100-latest-1`
4	`linux-arm64-cpu16`
2	`windows-amd64-cpu16`

caugonnet · 2024-11-26T12:10:01Z

/ok to test

cudax/include/cuda/experimental/__stf/internal/scalar_interface.cuh

cudax/include/cuda/experimental/__stf/utility/traits.cuh

cudax/include/cuda/experimental/__stf/internal/reducer.cuh

cudax/include/cuda/experimental/__stf/internal/parallel_for_scope.cuh

github-actions · 2024-11-26T12:47:20Z

🟩 CI finished in 36m 00s: Pass: 100%/54 | Total: 11h 41m | Avg: 12m 59s | Max: 20m 16s | Hits: 90%/246

🟩 cudax: Pass: 100%/54 | Total: 11h 41m | Avg: 12m 59s | Max: 20m 16s | Hits: 90%/246

🟩 cpu
  🟩 amd64              Pass: 100%/50  | Total: 10h 52m | Avg: 13m 03s | Max: 20m 16s | Hits:  90%/246   
  🟩 arm64              Pass: 100%/4   | Total: 48m 31s | Avg: 12m 07s | Max: 13m 07s
🟩 ctk
  🟩 12.0               Pass: 100%/19  | Total:  3h 57m | Avg: 12m 31s | Max: 20m 16s | Hits:  90%/123   
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🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/54  | Total: 11h 41m | Avg: 12m 59s | Max: 20m 16s | Hits:  90%/246   
🟩 cxx
  🟩 Clang9             Pass: 100%/2   | Total: 24m 34s | Avg: 12m 17s | Max: 12m 24s
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🟩 cxx_family
  🟩 Clang              Pass: 100%/30  | Total:  6h 35m | Avg: 13m 11s | Max: 18m 08s
  🟩 GCC                Pass: 100%/20  | Total:  4h 33m | Avg: 13m 40s | Max: 20m 16s
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  🟩 NVHPC              Pass: 100%/2   | Total: 14m 41s | Avg:  7m 20s | Max:  7m 57s
🟩 gpu
  🟩 v100               Pass: 100%/54  | Total: 11h 41m | Avg: 12m 59s | Max: 20m 16s | Hits:  90%/246   
🟩 jobs
  🟩 Build              Pass: 100%/49  | Total: 10h 17m | Avg: 12m 36s | Max: 18m 08s | Hits:  90%/246   
  🟩 Test               Pass: 100%/5   | Total:  1h 23m | Avg: 16m 42s | Max: 20m 16s
🟩 sm
  🟩 90                 Pass: 100%/1   | Total:  9m 09s | Avg:  9m 09s | Max:  9m 09s
  🟩 90a                Pass: 100%/1   | Total:  9m 43s | Avg:  9m 43s | Max:  9m 43s
🟩 std
  🟩 17                 Pass: 100%/29  | Total:  6h 11m | Avg: 12m 48s | Max: 20m 16s
  🟩 20                 Pass: 100%/25  | Total:  5h 30m | Avg: 13m 12s | Max: 18m 08s | Hits:  90%/246

👃 Inspect Changes

Modifications in project?

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+/-	CUDA Experimental
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	Catch2Helper

🏃‍ Runner counts (total jobs: 54)

#	Runner
43	`linux-amd64-cpu16`
5	`linux-amd64-gpu-v100-latest-1`
4	`linux-arm64-cpu16`
2	`windows-amd64-cpu16`

cudax/examples/stf/01-axpy-reduce.cu

…typed) constructors if they are read only or not. This is something that could be further improved !

caugonnet · 2024-12-10T09:53:32Z

/ok to test

caugonnet · 2024-12-10T10:07:53Z

/ok to test

github-actions · 2024-12-10T10:42:24Z

🟩 CI finished in 32m 59s: Pass: 100%/26 | Total: 4h 09m | Avg: 9m 36s | Max: 18m 44s | Hits: 91%/312

🟩 cudax: Pass: 100%/26 | Total: 4h 09m | Avg: 9m 36s | Max: 18m 44s | Hits: 91%/312

🟩 cpu
  🟩 amd64              Pass: 100%/22  | Total:  3h 34m | Avg:  9m 43s | Max: 18m 44s | Hits:  91%/312   
  🟩 arm64              Pass: 100%/4   | Total: 35m 47s | Avg:  8m 56s | Max: 10m 10s
🟩 ctk
  🟩 12.0               Pass: 100%/3   | Total: 27m 16s | Avg:  9m 05s | Max:  9m 20s | Hits:  91%/156   
  🟩 12.5               Pass: 100%/2   | Total: 10m 41s | Avg:  5m 20s | Max:  5m 25s
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🟩 cudacxx
  🟩 nvcc12.0           Pass: 100%/3   | Total: 27m 16s | Avg:  9m 05s | Max:  9m 20s | Hits:  91%/156   
  🟩 nvcc12.5           Pass: 100%/2   | Total: 10m 41s | Avg:  5m 20s | Max:  5m 25s
  🟩 nvcc12.6           Pass: 100%/21  | Total:  3h 31m | Avg: 10m 05s | Max: 18m 44s | Hits:  91%/156   
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/26  | Total:  4h 09m | Avg:  9m 36s | Max: 18m 44s | Hits:  91%/312   
🟩 cxx
  🟩 Clang9             Pass: 100%/1   | Total:  8m 43s | Avg:  8m 43s | Max:  8m 43s
  🟩 Clang10            Pass: 100%/1   | Total: 10m 31s | Avg: 10m 31s | Max: 10m 31s
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  🟩 GCC10              Pass: 100%/1   | Total:  8m 20s | Avg:  8m 20s | Max:  8m 20s
  🟩 GCC11              Pass: 100%/1   | Total:  9m 42s | Avg:  9m 42s | Max:  9m 42s
  🟩 GCC12              Pass: 100%/2   | Total: 28m 52s | Avg: 14m 26s | Max: 18m 44s
  🟩 GCC13              Pass: 100%/4   | Total: 34m 08s | Avg:  8m 32s | Max: 10m 10s
  🟩 MSVC14.36          Pass: 100%/1   | Total:  9m 20s | Avg:  9m 20s | Max:  9m 20s | Hits:  91%/156   
  🟩 MSVC14.39          Pass: 100%/1   | Total: 10m 06s | Avg: 10m 06s | Max: 10m 06s | Hits:  91%/156   
  🟩 NVHPC24.7          Pass: 100%/2   | Total: 10m 41s | Avg:  5m 20s | Max:  5m 25s
🟩 cxx_family
  🟩 Clang              Pass: 100%/13  | Total:  2h 09m | Avg:  9m 57s | Max: 14m 36s
  🟩 GCC                Pass: 100%/9   | Total:  1h 30m | Avg: 10m 01s | Max: 18m 44s
  🟩 MSVC               Pass: 100%/2   | Total: 19m 26s | Avg:  9m 43s | Max: 10m 06s | Hits:  91%/312   
  🟩 NVHPC              Pass: 100%/2   | Total: 10m 41s | Avg:  5m 20s | Max:  5m 25s
🟩 gpu
  🟩 v100               Pass: 100%/26  | Total:  4h 09m | Avg:  9m 36s | Max: 18m 44s | Hits:  91%/312   
🟩 jobs
  🟩 Build              Pass: 100%/24  | Total:  3h 36m | Avg:  9m 01s | Max: 10m 55s | Hits:  91%/312   
  🟩 Test               Pass: 100%/2   | Total: 33m 20s | Avg: 16m 40s | Max: 18m 44s
🟩 sm
  🟩 90                 Pass: 100%/1   | Total:  8m 03s | Avg:  8m 03s | Max:  8m 03s
  🟩 90a                Pass: 100%/1   | Total:  7m 42s | Avg:  7m 42s | Max:  7m 42s
🟩 std
  🟩 17                 Pass: 100%/6   | Total: 50m 33s | Avg:  8m 25s | Max: 10m 10s
  🟩 20                 Pass: 100%/20  | Total:  3h 19m | Avg:  9m 58s | Max: 18m 44s | Hits:  91%/312

👃 Inspect Changes

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

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

🏃‍ Runner counts (total jobs: 26)

#	Runner
18	`linux-amd64-cpu16`
4	`linux-arm64-cpu16`
2	`windows-amd64-cpu16`
2	`linux-amd64-gpu-v100-latest-1`

caugonnet commented Nov 15, 2024

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cudax/include/cuda/experimental/__stf/internal/parallel_for_scope.cuh Outdated Show resolved Hide resolved

caugonnet commented Nov 20, 2024

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caugonnet added the stf Sequential Task Flow programming model label Nov 21, 2024

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caugonnet commented Nov 26, 2024

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caugonnet commented Nov 26, 2024

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caugonnet commented Nov 26, 2024

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cudax/include/cuda/experimental/__stf/internal/reducer.cuh Show resolved Hide resolved

caugonnet commented Nov 26, 2024

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cudax/include/cuda/experimental/__stf/internal/parallel_for_scope.cuh Outdated Show resolved Hide resolved

andralex reviewed Nov 26, 2024

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cudax/examples/stf/01-axpy-reduce.cu Outdated Show resolved Hide resolved

andralex and others added 24 commits December 10, 2024 10:53

Fix build

a9489f9

Documentation for reduce()

d65f64d

Improve doc for reduce()

6cf4fea

Rename transfer_host in wait

91ea8a5

doxygen blocks for reducer operators

cf50f84

Add missing doxygen blocks or make them more accurate

9f61096

Remove commented code

14216b7

remove printf

d0222b5

Add sanity checks to detect unimplemented uses of reduce()

e53539c

Fix a logic error

4d2f92b

remove maybe_unused that is not needed anymore

e7844fe

Properly handle reduce on a CUDA graph that is not executed by device 0

c5660b2

Reimplement pagerank using a reduce access mode

288cf77

No need to atomicMaxFloat when using a reduce(reducer::maxval<float>{})

677f6ce

use references in calculating_pagerank

5994828

Add a missing doxygen block for scalar<T>

f106fb9

Remove count_type_v and count_type which are not used anymore

4460e8d

replace an atomic add by a reduction

ca32d55

Simpler scalar implementation with a struct

64c118c

Comment to clarify get_owning_container_of

de26df0

Remove useless ctor

44ebce3

fix spelling issue

9f27ca5

clang-format

c6e8fa1

Explain how we statically dispatch between the different task_dep(_un…

a6024ca

…typed) constructors if they are read only or not. This is something that could be further improved !

caugonnet force-pushed the stf_reducer_access_mode branch from d7a65f3 to a6024ca Compare December 10, 2024 09:53

Do provide constructors for scalar<T>

7624ae4

caugonnet merged commit c025dbd into NVIDIA:main Dec 10, 2024
43 checks passed

[STF] reduce access mode #2830

[STF] reduce access mode #2830

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🟨 cudax: Pass: 88%/54 | Total: 10h 40m | Avg: 11m 51s | Max: 16m 04s | Hits: 90%/123

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🟨 cudax: Pass: 90%/54 | Total: 12h 24m | Avg: 13m 47s | Max: 19m 40s | Hits: 90%/246

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caugonnet commented Nov 26, 2024

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🟩 cudax: Pass: 100%/54 | Total: 11h 41m | Avg: 12m 59s | Max: 20m 16s | Hits: 90%/246

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caugonnet commented Dec 10, 2024

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🟩 cudax: Pass: 100%/26 | Total: 4h 09m | Avg: 9m 36s | Max: 18m 44s | Hits: 91%/312

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🏃‍ Runner counts (total jobs: 26)

caugonnet commented Nov 15, 2024 •

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