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

Test Created

6 December 2010

Last Updated

19 December 2020

Test Maintainer

 

Test Type

Processor

Average Install Time

2 Seconds

Average Run Time

15 Minutes, 18 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

150k+ Downloads

Supported Platforms


Public Result UploadsTest Completions*Reported Installs*OpenBenchmarking.orgEventsCLOMP Popularity Statisticspts/clomp2011.032011.072011.112012.032012.072012.112013.032013.072013.112014.032014.072014.112015.032015.072015.112016.032016.072016.112017.032017.072017.112018.032018.072018.112019.032019.072019.112020.032020.072020.112021.033K6K9K12K15K
* 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.
Data current as of Thu, 04 Mar 2021 11:38:02 GMT.

Revision History

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 426 public results since 19 December 2020 with the latest data as of 3 March 2021.

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
# Matching Public Results
Speedup (Average)
100th
3
65.8 +/- 1.8
99th
3
57.5 +/- 0.4
95th
9
50.2 +/- 0.4
91st
5
46.3 +/- 2.0
91st
10
45.3 +/- 2.4
89th
3
41.3 +/- 0.8
86th
7
31.8 +/- 0.5
86th
3
31.8 +/- 0.3
86th
5
31.5 +/- 2.7
84th
3
30.7 +/- 0.4
83rd
4
29.5 +/- 0.4
81st
3
26.5 +/- 0.3
80th
5
26.0 +/- 1.0
79th
3
24.5 +/- 0.2
79th
3
24.3 +/- 0.3
78th
3
23.7 +/- 0.1
77th
4
23.3 +/- 0.2
Mid-Tier
75th
< 22.5
73rd
21
20.9 +/- 0.4
69th
3
16.9 +/- 0.2
69th
9
16.8 +/- 1.1
67th
3
12.4 +/- 1.2
67th
3
11.9 +/- 0.1
67th
4
10.3 +/- 0.1
65th
3
10.1 +/- 0.2
65th
3
10.1 +/- 0.1
64th
6
9.3 +/- 0.7
61st
3
8.2 +/- 0.6
59th
3
7.7 +/- 0.5
55th
6
5.9 +/- 0.1
55th
11
5.9 +/- 0.1
52nd
3
5.1 +/- 0.1
51st
14
5.0 +/- 0.5
Median
50th
4.9
48th
6
4.5 +/- 0.1
47th
4
3.8 +/- 0.1
45th
3
3.5 +/- 0.2
44th
3
3.1 +/- 0.1
42nd
4
2.9 +/- 0.1
42nd
5
2.9 +/- 0.1
42nd
5
2.9 +/- 0.1
35th
4
2.0 +/- 0.1
29th
5
1.9 +/- 0.1
Low-Tier
25th
< 1.9
24th
7
1.8 +/- 0.2
20th
4
1.6 +/- 0.1
16th
3
1.4 +/- 0.1
13th
3
1.3 +/- 0.1
13th
3
1.3 +/- 0.1
13th
3
1.3 +/- 0.2
10th
3
1.2 +/- 0.1
10th
3
1.2 +/- 0.1
6th
3
1.0 +/- 0.1
6th
3
1.0 +/- 0.1
OpenBenchmarking.orgDistribution Of Public Results - Static OMP Speedup425 Results Range From 0 To 68 Speedup06121824303642485460667250100150200250

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: 7.34 / Max: 47

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 1.5%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsStatic OMP SpeedupDeviation3691215Min: 0 / Avg: 1.49 / 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 Speedup468121632714212835

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: 30 January 2021

This test profile binary relies on the shared libraries libm.so.6, libgomp.so.1, libpthread.so.0, libc.so.6, libdl.so.2.

Recent Test Results

OpenBenchmarking.org Results Compare

1 System - 11 Benchmark Results

Intel Core i5-10210U - Intel NUC10i5FNB - Intel Device 02ef

Ubuntu 20.04 - 5.4.0-65-generic - Xfce 4.14

1 System - 4 Benchmark Results

Intel Core i5-10210U - Intel NUC10i5FNB - Intel Device 02ef

Ubuntu 20.04 - 5.4.0-65-generic - Xfce 4.14

1 System - 7 Benchmark Results

Intel Core i5-10210U - Intel NUC10i5FNB - Intel Device 02ef

Ubuntu 20.04 - 5.4.0-65-generic - Xfce 4.14

1 System - 5 Benchmark Results

Intel Core i5-10210U - Intel NUC10i5FNB - Intel Device 02ef

Ubuntu 20.04 - 5.4.0-65-generic - Xfce 4.14

1 System - 4 Benchmark Results

Intel Core i5-10210U - Intel NUC10i5FNB - Intel Device 02ef

Ubuntu 20.04 - 5.4.0-65-generic - Xfce 4.14

1 System - 7 Benchmark Results

Intel Core i5-10210U - Intel NUC10i5FNB - Intel Device 02ef

Ubuntu 20.04 - 5.4.0-65-generic - Xfce 4.14

5 Systems - 42 Benchmark Results

Ampere eMAG ARMv8 - AmpereComputing OSPREY - Applied Micro Circuits X-Gene

Ubuntu 20.04 - 5.7.0-050700-generic - GNOME Shell 3.36.3

4 Systems - 59 Benchmark Results

Intel Core i3-4130 - Intel DH87RL - Intel 4th Gen Core DRAM

Ubuntu 19.10 - 5.5.0-rc2-patched - GNOME Shell 3.34.1

2 Systems - 151 Benchmark Results

Intel Xeon E-2278GEL - Logic Supply RXM-181 - Intel Cannon Lake PCH

Ubuntu 20.10 - 5.8.0-41-generic - GNOME Shell 3.38.2

1 System - 1 Benchmark Result

AMD EPYC 7542 32-Core - UpCloud Cloud Server - Intel 440FX 82441FX PMC

Ubuntu 20.04 - 5.4.0-58-generic - bochs-drmdrmfb

Most Popular Test Results

OpenBenchmarking.org Results Compare

2 Systems - 151 Benchmark Results

Intel Core i7-10700T - Logic Supply RXM-181 - Intel Comet Lake PCH

Ubuntu 20.10 - 5.8.0-41-generic - GNOME Shell 3.38.2

5 Systems - 42 Benchmark Results

ARMv8 Cortex-A72 - SolidRun CEX7 - 32GB

Fedora 33 - 5.10.10-00042-gbfa806f5daa5-dirty - X Server 1.20.10

3 Systems - 191 Benchmark Results

AMD Ryzen 3 2200G - ASUS PRIME B350M-E - AMD Raven

Ubuntu 20.10 - 5.8.0-38-generic - GNOME Shell 3.38.1

4 Systems - 80 Benchmark Results

Intel Core i7-9750H - Notebook P95_96_97Ex Rx - Intel Cannon Lake PCH

Ubuntu 20.04 - 5.7.0-999-generic - GNOME Shell 3.36.4

3 Systems - 376 Benchmark Results

2 x AMD EPYC 7F72 24-Core - Supermicro H11DSi-NT v2.00 - AMD Starship

Ubuntu 20.10 - 5.10.9-051009-generic - GNOME Shell 3.38.1

2 Systems - 4 Benchmark Results

Ampere Altra ARMv8 Neoverse-N1 - WIWYNN Mt.Jade - Ampere Computing LLC Device e100

Ubuntu 20.04 - 5.4.0-58-generic - GCC 9.3.0

3 Systems - 28 Benchmark Results

Intel Xeon Silver 4216 - TYAN S7100AG2NR - Intel Sky Lake-E DMI3 Registers

Debian 10 - 4.19.0-9-amd64 - GNOME Shell 3.30.2

2 Systems - 220 Benchmark Results

AMD Ryzen 9 5950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship

Ubuntu 20.10 - 5.11.0-rc4-max-boost-inv-patch - GNOME Shell 3.38.1

4 Systems - 22 Benchmark Results

AMD Ryzen Threadripper 2950X 16-Core - MSI MEG X399 CREATION - AMD 17h

Debian 10 - 5.8.1-050801-generic - GNOME Shell 3.30.2

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