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Simd sort #6326

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Johan511
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@Johan511 Johan511 commented Aug 19, 2023 •
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Enabling vectorization for sorting using 3rd party library (https://github.com/intel/x86-simd-sort)

(Work in Progress)

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Performance test report

HPX Performance

Comparison

BENCHMARKFORK_JOIN_EXECUTORPARALLEL_EXECUTORSCHEDULER_EXECUTOR
For Each(=)??-

Info

PropertyBeforeAfter
HPX Datetime2023-05-10T12:07:53+00:002023-08-19T13:19:41+00:00
HPX Commitdcb5415cd65a80
Clusternamerostamrostam
Envfile
Datetime2023-05-10T14:50:18.616050-05:002023-08-19T08:25:36.834748-05:00
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu

Comparison

BENCHMARKNO-EXECUTOR
Future Overhead - Create Thread Hierarchical - Latch=

Info

PropertyBeforeAfter
HPX Datetime2023-05-10T12:07:53+00:002023-08-19T13:19:41+00:00
HPX Commitdcb5415cd65a80
Clusternamerostamrostam
Envfile
Datetime2023-05-10T14:52:35.047119-05:002023-08-19T08:27:50.442351-05:00
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu

Comparison

BENCHMARKFORK_JOIN_EXECUTOR_DEFAULT_FORK_JOIN_POLICY_ALLOCATORPARALLEL_EXECUTOR_DEFAULT_PARALLEL_POLICY_ALLOCATORSCHEDULER_EXECUTOR_DEFAULT_SCHEDULER_EXECUTOR_ALLOCATOR
Stream Benchmark - Add(=)(=)(=)
Stream Benchmark - Scale(=)(=)=
Stream Benchmark - Triad(=)(=)(=)
Stream Benchmark - Copy(=)(=)(=)

Info

PropertyBeforeAfter
HPX Datetime2023-05-10T12:07:53+00:002023-08-19T13:19:41+00:00
HPX Commitdcb5415cd65a80
Clusternamerostamrostam
Envfile
Datetime2023-05-10T14:52:52.237641-05:002023-08-19T08:28:07.336369-05:00
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu

Explanation of Symbols

SymbolMEANING
=No performance change (confidence interval within ±1%)
(=)Probably no performance change (confidence interval within ±2%)
(+)/(-)Very small performance improvement/degradation (≤1%)
+/-Small performance improvement/degradation (≤5%)
++/--Large performance improvement/degradation (≤10%)
+++/---Very large performance improvement/degradation (>10%)
?Probably no change, but quite large uncertainty (confidence interval with ±5%)
??Unclear result, very large uncertainty (±10%)
???Something unexpected…

@hkaiser hkaiser added this to the 1.10.0 milestone Aug 19, 2023
hkaiser
hkaiser requested changes Aug 19, 2023
View reviewed changes
CMakeLists.txt Outdated Show resolved Hide resolved
CMakeLists.txt Outdated Show resolved Hide resolved
cmake/HPX_SetupSimdSort.cmake Outdated Show resolved Hide resolved
cmake/HPX_SetupSimdSort.cmake Outdated Show resolved Hide resolved
@StellarBot
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Performance test report

HPX Performance

Comparison

BENCHMARKFORK_JOIN_EXECUTORPARALLEL_EXECUTORSCHEDULER_EXECUTOR
For Each(=)??-

Info

PropertyBeforeAfter
HPX Datetime2023-05-10T12:07:53+00:002023-08-19T18:38:27+00:00
HPX Commitdcb541524dfcd5
Envfile
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1
Clusternamerostamrostam
Datetime2023-05-10T14:50:18.616050-05:002023-08-19T13:45:18.850938-05:00
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu

Comparison

BENCHMARKNO-EXECUTOR
Future Overhead - Create Thread Hierarchical - Latch(=)

Info

PropertyBeforeAfter
HPX Datetime2023-05-10T12:07:53+00:002023-08-19T18:38:27+00:00
HPX Commitdcb541524dfcd5
Envfile
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1
Clusternamerostamrostam
Datetime2023-05-10T14:52:35.047119-05:002023-08-19T13:47:31.102556-05:00
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu

Comparison

BENCHMARKFORK_JOIN_EXECUTOR_DEFAULT_FORK_JOIN_POLICY_ALLOCATORPARALLEL_EXECUTOR_DEFAULT_PARALLEL_POLICY_ALLOCATORSCHEDULER_EXECUTOR_DEFAULT_SCHEDULER_EXECUTOR_ALLOCATOR
Stream Benchmark - Add(=)(=)(=)
Stream Benchmark - Scale(=)(=)(=)
Stream Benchmark - Triad(=)(=)(=)
Stream Benchmark - Copy(=)(=)(=)

Info

PropertyBeforeAfter
HPX Datetime2023-05-10T12:07:53+00:002023-08-19T18:38:27+00:00
HPX Commitdcb541524dfcd5
Envfile
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1
Clusternamerostamrostam
Datetime2023-05-10T14:52:52.237641-05:002023-08-19T13:47:48.033631-05:00
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu

Explanation of Symbols

SymbolMEANING
=No performance change (confidence interval within ±1%)
(=)Probably no performance change (confidence interval within ±2%)
(+)/(-)Very small performance improvement/degradation (≤1%)
+/-Small performance improvement/degradation (≤5%)
++/--Large performance improvement/degradation (≤10%)
+++/---Very large performance improvement/degradation (>10%)
?Probably no change, but quite large uncertainty (confidence interval with ±5%)
??Unclear result, very large uncertainty (±10%)
???Something unexpected…

hkaiser
hkaiser requested changes Aug 21, 2023
View reviewed changes
cmake/FindSimdSort.cmake Outdated Show resolved Hide resolved
cmake/HPX_SetupSimdSort.cmake Outdated Show resolved Hide resolved
@StellarBot
Copy link

Performance test report

HPX Performance

Comparison

BENCHMARKFORK_JOIN_EXECUTORPARALLEL_EXECUTORSCHEDULER_EXECUTOR
For Each(=)??(=)

Info

PropertyBeforeAfter
HPX Commitdcb5415b60c175
HPX Datetime2023-05-10T12:07:53+00:002023-08-29T06:23:47+00:00
Clusternamerostamrostam
Datetime2023-05-10T14:50:18.616050-05:002023-08-29T01:31:05.004560-05:00
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu
Envfile
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1

Comparison

BENCHMARKNO-EXECUTOR
Future Overhead - Create Thread Hierarchical - Latch(=)

Info

PropertyBeforeAfter
HPX Commitdcb5415b60c175
HPX Datetime2023-05-10T12:07:53+00:002023-08-29T06:23:47+00:00
Clusternamerostamrostam
Datetime2023-05-10T14:52:35.047119-05:002023-08-29T01:33:17.791388-05:00
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu
Envfile
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1

Comparison

BENCHMARKFORK_JOIN_EXECUTOR_DEFAULT_FORK_JOIN_POLICY_ALLOCATORPARALLEL_EXECUTOR_DEFAULT_PARALLEL_POLICY_ALLOCATORSCHEDULER_EXECUTOR_DEFAULT_SCHEDULER_EXECUTOR_ALLOCATOR
Stream Benchmark - Add(=)(=)(=)
Stream Benchmark - Scale=(=)=
Stream Benchmark - Triad(=)=(=)
Stream Benchmark - Copy(=)-(=)

Info

PropertyBeforeAfter
HPX Commitdcb5415b60c175
HPX Datetime2023-05-10T12:07:53+00:002023-08-29T06:23:47+00:00
Clusternamerostamrostam
Datetime2023-05-10T14:52:52.237641-05:002023-08-29T01:33:34.692225-05:00
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu
Envfile
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1

Explanation of Symbols

SymbolMEANING
=No performance change (confidence interval within ±1%)
(=)Probably no performance change (confidence interval within ±2%)
(+)/(-)Very small performance improvement/degradation (≤1%)
+/-Small performance improvement/degradation (≤5%)
++/--Large performance improvement/degradation (≤10%)
+++/---Very large performance improvement/degradation (>10%)
?Probably no change, but quite large uncertainty (confidence interval with ±5%)
??Unclear result, very large uncertainty (±10%)
???Something unexpected…

@Johan511
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Johan511 commented Aug 29, 2023 •
edited
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image

Speedup observed for simd-sort

@Johan511
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Johan511 commented Aug 29, 2023 •
edited
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@hkaiser There are multiple issues trying to add this integrate this feature into HPX

  1. We need to add feature tests for AVX512
  2. Some vector intrinsic functions are not supported in certain architectures and as a result throw errors. In case of medusa a certain vector load instruction related to 16bit integers was not supported which leads to compile time failure of the target application even if i16 is not being sorted
  3. similar to 2nd point, some architectures might not support certain datatypes (Eg: _Float16) which can cause compile time failures in HPX
  4. If HPX is compiled with simd sort, the target application must be compiled with -march=native (or all the required flags to support vectorization). Else the compilation of the target application will fail

The library has different files for sorting 16bit, 32bit, 64bit numbers, I was considering adding a feature test for each of these files and including them with ifdef guards around them. This would still be an issue if the user compiles HPX and the HPX application (target) and different architectures. This might also lead to some false positives (features which are supported might not be available to user).

I would like your opinion on if I should proceed with the above design.

@StellarBot
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Performance test report

HPX Performance

Comparison

BENCHMARKFORK_JOIN_EXECUTORPARALLEL_EXECUTORSCHEDULER_EXECUTOR
For Each(=)??(=)

Info

PropertyBeforeAfter
HPX Commitdcb54150c93a3b
HPX Datetime2023-05-10T12:07:53+00:002023-08-29T21:45:09+00:00
Clusternamerostamrostam
Datetime2023-05-10T14:50:18.616050-05:002023-08-29T16:57:31.036372-05:00
Envfile
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1

Comparison

BENCHMARKNO-EXECUTOR
Future Overhead - Create Thread Hierarchical - Latch(=)

Info

PropertyBeforeAfter
HPX Commitdcb54150c93a3b
HPX Datetime2023-05-10T12:07:53+00:002023-08-29T21:45:09+00:00
Clusternamerostamrostam
Datetime2023-05-10T14:52:35.047119-05:002023-08-29T16:59:43.227039-05:00
Envfile
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1

Comparison

BENCHMARKFORK_JOIN_EXECUTOR_DEFAULT_FORK_JOIN_POLICY_ALLOCATORPARALLEL_EXECUTOR_DEFAULT_PARALLEL_POLICY_ALLOCATORSCHEDULER_EXECUTOR_DEFAULT_SCHEDULER_EXECUTOR_ALLOCATOR
Stream Benchmark - Add(=)(=)(=)
Stream Benchmark - Scale(=)(=)=
Stream Benchmark - Triad(=)(=)(=)
Stream Benchmark - Copy(=)-(=)

Info

PropertyBeforeAfter
HPX Commitdcb54150c93a3b
HPX Datetime2023-05-10T12:07:53+00:002023-08-29T21:45:09+00:00
Clusternamerostamrostam
Datetime2023-05-10T14:52:52.237641-05:002023-08-29T17:00:00.111855-05:00
Envfile
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1

Explanation of Symbols

SymbolMEANING
=No performance change (confidence interval within ±1%)
(=)Probably no performance change (confidence interval within ±2%)
(+)/(-)Very small performance improvement/degradation (≤1%)
+/-Small performance improvement/degradation (≤5%)
++/--Large performance improvement/degradation (≤10%)
+++/---Very large performance improvement/degradation (>10%)
?Probably no change, but quite large uncertainty (confidence interval with ±5%)
??Unclear result, very large uncertainty (±10%)
???Something unexpected…

@StellarBot
Copy link

Performance test report

HPX Performance

Comparison

BENCHMARKFORK_JOIN_EXECUTORPARALLEL_EXECUTORSCHEDULER_EXECUTOR
For Each(=)??(=)

Info

PropertyBeforeAfter
HPX Commitdcb541525b4e45
HPX Datetime2023-05-10T12:07:53+00:002023-08-29T21:58:26+00:00
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1
Clusternamerostamrostam
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu
Envfile
Datetime2023-05-10T14:50:18.616050-05:002023-08-29T17:07:47.004681-05:00

Comparison

BENCHMARKNO-EXECUTOR
Future Overhead - Create Thread Hierarchical - Latch(=)

Info

PropertyBeforeAfter
HPX Commitdcb541525b4e45
HPX Datetime2023-05-10T12:07:53+00:002023-08-29T21:58:26+00:00
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1
Clusternamerostamrostam
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu
Envfile
Datetime2023-05-10T14:52:35.047119-05:002023-08-29T17:09:59.091186-05:00

Comparison

BENCHMARKFORK_JOIN_EXECUTOR_DEFAULT_FORK_JOIN_POLICY_ALLOCATORPARALLEL_EXECUTOR_DEFAULT_PARALLEL_POLICY_ALLOCATORSCHEDULER_EXECUTOR_DEFAULT_SCHEDULER_EXECUTOR_ALLOCATOR
Stream Benchmark - Add(=)(=)(=)
Stream Benchmark - Scale(=)(=)(=)
Stream Benchmark - Triad(=)(=)(=)
Stream Benchmark - Copy(=)-(=)

Info

PropertyBeforeAfter
HPX Commitdcb541525b4e45
HPX Datetime2023-05-10T12:07:53+00:002023-08-29T21:58:26+00:00
Compiler/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1/opt/apps/llvm/13.0.1/bin/clang++ 13.0.1
Clusternamerostamrostam
Hostnamemedusa08.rostam.cct.lsu.edumedusa08.rostam.cct.lsu.edu
Envfile
Datetime2023-05-10T14:52:52.237641-05:002023-08-29T17:10:15.975599-05:00

Explanation of Symbols

SymbolMEANING
=No performance change (confidence interval within ±1%)
(=)Probably no performance change (confidence interval within ±2%)
(+)/(-)Very small performance improvement/degradation (≤1%)
+/-Small performance improvement/degradation (≤5%)
++/--Large performance improvement/degradation (≤10%)
+++/---Very large performance improvement/degradation (>10%)
?Probably no change, but quite large uncertainty (confidence interval with ±5%)
??Unclear result, very large uncertainty (±10%)
???Something unexpected…

@STEllAR-GROUP STEllAR-GROUP deleted a comment from codacy-production bot Sep 13, 2023
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codacy-production bot commented Sep 14, 2023 •
edited
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Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation Diff coverage
-69.13% ∅
Coverage variation details
Coverable lines Covered lines Coverage
Common ancestor commit (103a7b8) 190583 162311 85.17%
Head commit (1c18b4a) 188842 (-1741) 30284 (-132027) 16.04% (-69.13%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details
Coverable lines Covered lines Diff coverage
Pull request (#6326) 0 0 ∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

See your quality gate settings    Change summary preferences

Johan511 and others added 10 commits October 19, 2023 09:42
@Johan511
pulls simd sort
a2a7930
@Johan511
cmake format
fb85580
@Johan511 @hkaiser
Update CMakeLists.txt
fd13408 
Co-authored-by: Hartmut Kaiser <hartmut.kaiser@gmail.com>
@Johan511 @hkaiser
Update CMakeLists.txt
8c88a48 
Co-authored-by: Hartmut Kaiser <hartmut.kaiser@gmail.com>
@Johan511 @hkaiser
Update cmake/HPX_SetupSimdSort.cmake
66835a0 
Co-authored-by: Hartmut Kaiser <hartmut.kaiser@gmail.com>
@Johan511 @hkaiser
Update cmake/HPX_SetupSimdSort.cmake
4b199bc 
Co-authored-by: Hartmut Kaiser <hartmut.kaiser@gmail.com>
@Johan511
simd sort fetched as intended
82d1537
@Johan511
simd sort
058d428
@Johan511
fixed inspect errors
1f92c0f
@Johan511
fixed missing header
07f9d20
@Johan511
examples throwing linker error
4e315b9 
Signed-off-by: Hari Hara Naveen S <harihara.sn@gmail.com>
@Johan511
added compile definitions for simd sort
2ef7872 
Signed-off-by: Hari Hara Naveen S <harihara.sn@gmail.com>
@Johan511
integrated simd sort
f158dda 
Signed-off-by: Hari Hara Naveen S <harihara.sn@gmail.com>
@Johan511
added missing config file
9493bce 
Signed-off-by: Hari Hara Naveen S <harihara.sn@gmail.com>
@Johan511
fixed typo
3db90f7 
Signed-off-by: Hari Hara Naveen S <harihara.sn@gmail.com>
@Johan511
fixing unused param error
42562a0 
Signed-off-by: Hari Hara Naveen S <harihara.sn@gmail.com>
@Johan511
changed native arch to avx512f
4768761 
Signed-off-by: Hari Hara Naveen S <harihara.sn@gmail.com>
@Johan511
better diagnostic
25534b3 
Signed-off-by: Hari Hara Naveen S <harihara.sn@gmail.com>
@Johan511
return 0 added
1c18b4a 
Signed-off-by: Hari Hara Naveen S <harihara.sn@gmail.com>
@hkaiser hkaiser modified the milestones: 1.10.0, 1.11.0 May 3, 2024
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@Johan511 @StellarBot @hkaiser