CLOMP

CLOMP is the C version of the Livermore OpenMP benchmark developed to measure OpenMP overheads and other performance impacts due to threading in order to influence future system designs. This particular test profile configuration is currently set to look at the OpenMP static schedule speed-up across all available CPU cores using the recommended test configuration.

To run this test with the Phoronix Test Suite, the basic command is: phoronix-test-suite benchmark clomp.

Project Site

asc.llnl.gov

Source Repository

gitlab.com

Test Created

6 December 2010

Last Updated

6 December 2021

Test Maintainer

 

Test Type

Processor

Average Install Time

2 Seconds

Average Run Time

3 Minutes, 35 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

150k+ Downloads

Supported Platforms

Public Result Uploads *Reported Test Completions **Reported Installs **Test Profile Page Views ***OpenBenchmarking.orgEventsCLOMP Popularity Statisticspts/clomp2010.122011.042011.082011.122012.042012.082012.122013.042013.082013.122014.042014.082014.122015.042015.082015.122016.042016.082016.122017.042017.082017.122018.042018.082018.122019.042019.082019.122020.042020.082020.122021.042021.082021.122022.042022.082022.123K6K9K12K15K
* Uploading of benchmark result data to OpenBenchmarking.org is always optional (opt-in) via the Phoronix Test Suite for users wishing to share their results publicly.
** Data based on those opting to upload their test results to OpenBenchmarking.org and users enabling the opt-in anonymous statistics reporting while running benchmarks from an Internet-connected platform.
*** Test profile page view reporting began March 2021.
Data current as of 5 December 2022.

Revision History

pts/clomp-1.1.2   [View Source]   Mon, 06 Dec 2021 19:31:37 GMT
Fix for install-exit-status.

pts/clomp-1.1.1   [View Source]   Sat, 19 Dec 2020 13:49:02 GMT
Correct test-exit-status to install-exit-status.

pts/clomp-1.1.0   [View Source]   Sat, 19 Dec 2020 13:48:18 GMT
Update against latest upstream.

pts/clomp-1.0.0   [View Source]   Mon, 06 Dec 2010 14:35:49 GMT
Initial import into OpenBenchmarking.org

Suites Using This Test

C/C++ Compiler Tests

CPU Massive


Performance Metrics

Analyze Test Configuration:

CLOMP 1.2

Static OMP Speedup

OpenBenchmarking.org metrics for this test profile configuration based on 664 public results since 19 December 2020 with the latest data as of 30 November 2022.

Below is an overview of the generalized performance for components where there is sufficient statistically significant data based upon user-uploaded results. It is important to keep in mind particularly in the Linux/open-source space there can be vastly different OS configurations, with this overview intended to offer just general guidance as to the performance expectations.

Component
Percentile Rank
# Compatible Public Results
Speedup (Average)
AMD EPYC 7502 32-Core
100th
3
65.8 +/- 1.8
AMD Ryzen Threadripper 3970X 32-Core
100th
3
64.0
AMD Ryzen Threadripper 3960X 24-Core
100th
3
60.0 +/- 0.4
AMD EPYC 7601 32-Core
100th
3
57.5 +/- 0.4
AMD Ryzen Threadripper 3990X 64-Core
99th
8
55.6 +/- 0.6
AMD Ryzen Threadripper 2970WX 24-Core
98th
4
52.2 +/- 0.2
AMD Ryzen Threadripper 2990WX 32-Core
97th
6
51.1 +/- 0.8
AMD Ryzen Threadripper 2950X 16-Core
96th
7
50.4 +/- 2.7
AMD EPYC 7F52 16-Core
96th
9
50.2 +/- 0.4
AMD EPYC 7551 32-Core
93rd
5
46.3 +/- 2.0
2 x AMD EPYC 7F72 24-Core
93rd
10
45.3 +/- 2.4
2 x Intel Xeon Gold 6254
90th
4
36.5 +/- 1.3
AMD Ryzen 9 3900XT 12-Core
89th
5
33.1 +/- 0.4
AMD Ryzen 9 3900X 12-Core
87th
7
31.8 +/- 0.5
2 x Intel Xeon Gold 5220R
87th
3
31.8 +/- 0.3
2 x AMD EPYC 7742 64-Core
87th
5
31.5 +/- 2.7
2 x AMD EPYC 7601 32-Core
86th
3
30.7 +/- 0.4
AMD EPYC 7F32 8-Core
86th
9
30.6 +/- 1.6
2 x Intel Xeon Platinum 8280
84th
3
28.7 +/- 0.3
Intel Core i9-10980XE
83rd
8
26.5 +/- 1.0
Intel Xeon Gold 6226R
83rd
3
26.5 +/- 0.3
Intel Xeon D-2183IT
81st
3
24.9 +/- 1.4
Intel Core i9-7980XE
81st
3
24.5 +/- 0.2
AMD Ryzen 7 3800XT 8-Core
80th
6
24.3 +/- 0.4
Intel Xeon Silver 4216
79th
6
24.0 +/- 0.3
AMD Ryzen 9 7950X 16-Core
78th
5
23.5 +/- 0.9
AMD Ryzen 7 3700X 8-Core
78th
5
23.3 +/- 0.3
Intel Core i9-7960X
77th
4
23.2
2 x AMD EPYC 75F3 32-Core
76th
3
22.9 +/- 1.0
2 x Intel Xeon E5-2680 v2
76th
3
22.0 +/- 0.5
Mid-Tier
75th
< 21.8
AMD Ryzen 9 5950X 16-Core
73rd
28
20.7 +/- 0.5
AMD Ryzen 5 3600XT 6-Core
70th
3
16.9 +/- 0.2
AMD Ryzen 9 5900X 12-Core
70th
9
16.8 +/- 1.1
AMD EPYC 72F3 8-Core
68th
3
13.2 +/- 0.1
Intel Xeon E5-2687W v3
67th
3
12.4 +/- 1.2
AMD Ryzen 7 5800X 8-Core
67th
3
11.9 +/- 0.1
Intel Xeon E5-1680 v3
64th
3
10.1 +/- 0.2
AMD Ryzen 5 5600X 6-Core
63rd
6
10.0 +/- 0.3
Intel Core i5-12400
62nd
3
9.5 +/- 0.1
Intel Core i9-10900K
62nd
9
9.4 +/- 0.6
AMD Ryzen 7 2700 Eight-Core
61st
3
9.0 +/- 0.1
Intel Atom C3958
59th
4
8.3 +/- 0.5
POWER9 4-Core
59th
3
8.2 +/- 0.6
AMD Ryzen 7 1800X Eight-Core
59th
4
8.0 +/- 0.2
Intel Xeon E5-2609 v4
58th
3
7.7 +/- 0.5
Ampere eMAG ARMv8 32-Core
57th
11
7.2 +/- 0.1
Intel Core i5-12600K
55th
5
6.7 +/- 0.4
POWER9 44-Core
54th
11
5.9 +/- 0.1
Intel Core i7-10700T
52nd
10
5.6 +/- 0.5
Intel Core i9-9900KS
51st
3
5.1 +/- 0.1
Median
50th
5.1
Intel Core i7-1165G7
50th
14
5.0 +/- 0.5
Intel Core i9-11900K
49th
12
4.9 +/- 0.2
AMD Ryzen 7 5700G
49th
3
4.9 +/- 0.4
AMD Ryzen 3 3100 4-Core
48th
4
4.8 +/- 0.2
AMD Ryzen 9 5900HX
47th
4
4.7 +/- 0.5
Intel Xeon E-2288G
46th
6
4.5 +/- 0.1
AMD FX-8150 Eight-Core
44th
4
3.8 +/- 0.1
Intel Core i9-9900K
42nd
3
3.5 +/- 0.2
AMD Ryzen 3 3300X 4-Core
42nd
6
3.1 +/- 0.1
Intel Core i7-5775C
42nd
7
3.1 +/- 0.1
AMD FX-8370 Eight-Core
39th
4
2.9 +/- 0.1
Intel Core i5-10600K
39th
5
2.9 +/- 0.1
Intel Xeon E-2278GEL
39th
5
2.9 +/- 0.1
Intel Core i7-9750H
38th
5
2.7
Intel Core i7-1065G7
36th
5
2.5
AMD Ryzen 3 1300X
35th
4
2.2
AMD Ryzen 5 2400G
34th
7
2.0
Intel Core i7-8086K
34th
9
2.0
AMD Ryzen 5 3400G
34th
5
2.0
AMD Ryzen 3 2200G
34th
3
2.0
Intel Core i5-8400
34th
6
2.0
Intel Xeon E3-1275 v6
34th
3
2.0
Intel Xeon E3-1235L v5
34th
3
2.0
AMD Ryzen 5 4500U
28th
5
1.9 +/- 0.1
Intel Xeon E3-1245 v5
28th
9
1.9 +/- 0.1
Intel Xeon E3-1280 v5
28th
6
1.9
Intel Core i5-10210U
28th
6
1.9
Low-Tier
25th
< 1.9
Intel Core i7-8550U
24th
4
1.8
Intel Core i7-8565U
24th
5
1.8
AMD A10-7850K APU
24th
7
1.8 +/- 0.2
Intel Core i3-8100
22nd
3
1.7
Intel Core i5-9400F
22nd
3
1.7
AMD Ryzen 7 4700U
22nd
4
1.7 +/- 0.1
Intel Core i7-7700K
20th
4
1.6 +/- 0.1
Intel Core i5-6500
20th
9
1.6
Intel Core i7-7740K
17th
3
1.5
Intel Xeon E3-1270 v5
17th
3
1.5
AMD Ryzen 5 5500U
17th
6
1.5 +/- 0.1
Intel Core i7-4960X
15th
3
1.4 +/- 0.1
AMD Ryzen 3 3200U
15th
5
1.4
Intel Core i3-7100
15th
6
1.4
Intel Core i3-4130
13th
4
1.3
Intel Core i7-5600U
13th
3
1.3 +/- 0.1
AMD Ryzen 7 4800U
13th
7
1.3 +/- 0.1
Intel Xeon E3-1231 v3
13th
6
1.3 +/- 0.1
Intel Core i5-3470
13th
3
1.3 +/- 0.1
Intel Core i7-4790K
9th
3
1.2 +/- 0.1
Intel Core i7-6800K
9th
6
1.2
Intel Core i5-4670
9th
3
1.2 +/- 0.1
Intel Core i3-10100
6th
3
1.0
ARMv8 Cortex-A72 4-Core
6th
5
1.0
Intel Core i5-2500K
6th
3
1.0 +/- 0.1
Intel Core i5-7600K
6th
3
1.0
Intel Core i7-4770K
6th
3
1.0 +/- 0.1
Intel Core i7-3770K
6th
3
1.0
ARMv7 Cortex-A72 4-Core
3rd
3
0.9
Intel Core i7-2700K
3rd
3
0.5
OpenBenchmarking.orgDistribution Of Public Results - Static OMP Speedup663 Results Range From 0 To 68 Speedup6121824303642485460667280160240320400

Based on OpenBenchmarking.org data, the selected test / test configuration (CLOMP 1.2 - Static OMP Speedup) has an average run-time of 8 minutes. By default this test profile is set to run at least 3 times but may increase if the standard deviation exceeds pre-defined defaults or other calculations deem additional runs necessary for greater statistical accuracy of the result.

OpenBenchmarking.orgMinutesTime Required To Complete BenchmarkStatic OMP SpeedupRun-Time1020304050Min: 1 / Avg: 7.82 / Max: 49

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 1.2%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsStatic OMP SpeedupDeviation3691215Min: 0 / Avg: 1.23 / Max: 10

Does It Scale Well With Increasing Cores?

Yes, based on the automated analysis of the collected public benchmark data, this test / test settings does generally scale well with increasing CPU core counts. Data based on publicly available results for this test / test settings, separated by vendor, result divided by the reference CPU clock speed, grouped by matching physical CPU core count, and normalized against the smallest core count tested from each vendor for each CPU having a sufficient number of test samples and statistically significant data.

AMDIntelOpenBenchmarking.orgRelative Core Scaling To BaseCLOMP CPU Core ScalingStatic OMP Speedup46812163264918273645

Notable Instruction Set Usage

Notable instruction set extensions supported by this test, based on an automatic analysis by the Phoronix Test Suite / OpenBenchmarking.org analytics engine.

Instruction Set
Support
Instructions Detected
SSE2 (SSE2)
Used by default on supported hardware.
 
CVTSI2SD DIVSD MULSD ADDSD MOVAPD ANDPD UCOMISD COMISD CVTTSD2SI SUBSD ANDNPD CMPNLESD ORPD MOVHPD MAXSD PUNPCKLQDQ
FMA (FMA)
Requires passing a supported compiler/build flag (verified with targets: skylake, tigerlake, cascadelake, sapphirerapids, alderlake, znver2, znver3).
Found on Intel processors since Haswell (2013).
Found on AMD processors since Bulldozer (2011).
 
VFMADD132SD VFMADD231SD VFNMADD132SD VFMADD213SD
The test / benchmark does honor compiler flag changes.
Last automated analysis: 17 January 2022

This test profile binary relies on the shared libraries libgomp.so.1, libc.so.6.

Tested CPU Architectures

This benchmark has been successfully tested on the below mentioned architectures. The CPU architectures listed is where successful OpenBenchmarking.org result uploads occurred, namely for helping to determine if a given test is compatible with various alternative CPU architectures.

CPU Architecture
Kernel Identifier
Verified On
Intel / AMD x86 64-bit
x86_64
(Many Processors)
RISC-V 64-bit
riscv64
SiFive RISC-V
IBM POWER (PowerPC) 64-bit
ppc64le
POWER9 4-Core, POWER9 44-Core
Loongson LoongArch 64-bit
loongarch64
Loongson-3C5000L
ARMv7 32-bit
armv7l
ARMv7 Cortex-A72 4-Core
ARMv8 64-bit
aarch64
ARMv8 Cortex-A72 16-Core, ARMv8 Cortex-A72 4-Core, ARMv8 Neoverse-V1, Ampere ARMv8 Neoverse-N1 160-Core, Ampere Altra ARMv8 Neoverse-N1 160-Core, Ampere eMAG ARMv8 32-Core

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4 Systems - 59 Benchmark Results

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macOS 11.7 - 20.6.0 - GCC 13.0.0 + Clang 13.0.0

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Ubuntu 22.04 - 5.15.0-50-generic - GNOME Shell 42.4

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Arch rolling - 5.19.7-AMD - KDE Plasma 5.25.5

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Arch Linux - 5.18.12-lqx1 - X Server 1.21.1.4

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