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.


CLOMP 1.2

Static OMP Speedup

OpenBenchmarking.org metrics for this test profile configuration based on 764 public results since 19 December 2020 with the latest data as of 13 December 2024.

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
Details
Percentile Rank
# Compatible Public Results
Speedup (Average)
Zen 2 [32 Cores / 64 Threads]
100th
3
65.8 +/- 1.8
Zen 2 [32 Cores / 64 Threads]
100th
3
63.7 +/- 0.1
Zen 2 [24 Cores / 48 Threads]
100th
3
60.0 +/- 0.4
Zen [32 Cores / 64 Threads]
100th
3
57.5 +/- 0.4
Zen 2 [64 Cores / 128 Threads]
99th
8
55.6 +/- 0.6
Zen+ [24 Cores / 48 Threads]
98th
4
52.2 +/- 0.2
Zen+ [32 Cores / 64 Threads]
97th
6
51.1 +/- 0.8
Zen+ [16 Cores / 32 Threads]
97th
7
50.4 +/- 2.7
Zen 2 [16 Cores / 32 Threads]
96th
9
50.2 +/- 0.4
Zen [32 Cores / 64 Threads]
94th
5
46.3 +/- 2.0
Zen 2 [48 Cores / 96 Threads]
94th
10
45.3 +/- 2.4
Cascade Lake [36 Cores / 72 Threads]
91st
4
36.5 +/- 1.3
Zen 2 [12 Cores / 24 Threads]
90th
5
33.1 +/- 0.4
Cascade Lake [48 Cores / 96 Threads]
89th
3
31.8 +/- 0.3
Zen 2 [12 Cores / 24 Threads]
89th
7
31.8 +/- 0.5
Zen 2 [128 Cores / 256 Threads]
88th
5
31.5 +/- 2.7
Zen [64 Cores / 128 Threads]
87th
3
30.7 +/- 0.4
Zen 2 [8 Cores / 16 Threads]
87th
9
30.6 +/- 1.6
Cascade Lake [56 Cores / 112 Threads]
85th
3
28.7 +/- 0.3
Cascade Lake [16 Cores / 32 Threads]
84th
3
26.5 +/- 0.3
Cascade Lake [18 Cores / 36 Threads]
84th
8
26.5 +/- 1.0
Cascade Lake [16 Cores / 32 Threads]
83rd
3
24.9 +/- 1.4
Cascade Lake [18 Cores / 36 Threads]
82nd
3
24.5 +/- 0.2
Zen 2 [8 Cores / 16 Threads]
82nd
6
24.3 +/- 0.4
Cascade Lake [16 Cores / 32 Threads]
81st
6
24.0 +/- 0.3
Zen 4 [16 Cores / 32 Threads]
80th
7
23.7 +/- 0.8
Broadwell [28 Cores / 56 Threads]
80th
4
23.4 +/- 1.4
Zen 2 [8 Cores / 16 Threads]
79th
5
23.3 +/- 0.3
Cascade Lake [16 Cores / 32 Threads]
79th
4
23.2
Zen 3 [64 Cores / 128 Threads]
78th
3
22.9 +/- 1.0
Ivy Bridge [20 Cores / 40 Threads]
77th
5
21.9 +/- 0.3
Mid-Tier
75th
< 21.2
Zen 3 [16 Cores / 32 Threads]
74th
28
20.7 +/- 0.5
Zen 2 [6 Cores / 12 Threads]
71st
3
16.9 +/- 0.2
Zen 3 [12 Cores / 24 Threads]
71st
9
16.8 +/- 1.1
Zen 3 [8 Cores / 16 Threads]
69th
3
13.2 +/- 0.1
Haswell [20 Cores / 20 Threads]
68th
3
12.4 +/- 1.2
Zen 3 [8 Cores / 16 Threads]
68th
4
12.3 +/- 0.8
Haswell [16 Cores / 16 Threads]
65th
3
10.1 +/- 0.2
Zen 3 [6 Cores / 12 Threads]
65th
6
10.0 +/- 0.3
Alder Lake [6 Cores / 12 Threads]
64th
3
9.5 +/- 0.1
Comet Lake [10 Cores / 20 Threads]
63rd
9
9.4 +/- 0.6
Zen+ [8 Cores / 16 Threads]
62nd
3
9.0 +/- 0.1
Goldmont [16 Cores / 16 Threads]
61st
4
8.3 +/- 0.5
61st
3
8.2 +/- 0.6
Zen [8 Cores / 16 Threads]
61st
4
8.0 +/- 0.2
Broadwell [8 Cores / 8 Threads]
59th
3
7.7 +/- 0.5
59th
11
7.2 +/- 0.1
Alder Lake [10 Cores / 16 Threads]
57th
5
6.7 +/- 0.4
55th
11
5.9 +/- 0.1
Comet Lake [8 Cores / 16 Threads]
54th
10
5.6 +/- 0.5
Zen 3 [6 Cores / 12 Threads]
53rd
5
5.2 +/- 0.1
Kaby/Coffee/Whiskey Lake [8 Cores / 16 Threads]
52nd
3
5.1 +/- 0.1
Tiger Lake [4 Cores / 8 Threads]
52nd
14
5.0 +/- 0.5
Median
50th
5.0
Zen 3 [8 Cores / 16 Threads]
50th
3
4.9 +/- 0.4
Rocket Lake [8 Cores / 16 Threads]
50th
12
4.9 +/- 0.2
Zen 2 [4 Cores / 8 Threads]
50th
4
4.8 +/- 0.2
Zen 3 [8 Cores / 16 Threads]
48th
4
4.7 +/- 0.5
Kaby/Coffee/Whiskey Lake [8 Cores / 16 Threads]
47th
6
4.5 +/- 0.1
Bulldozer [8 Cores / 8 Threads]
46th
4
3.8 +/- 0.1
Kaby/Coffee/Whiskey Lake [8 Cores / 16 Threads]
44th
3
3.5 +/- 0.2
Zen 2 [4 Cores / 8 Threads]
44th
4
3.4 +/- 0.1
[4 Cores / 8 Threads]
43rd
9
3.2 +/- 0.2
Broadwell [8 Cores / 8 Threads]
42nd
7
3.1 +/- 0.1
Zen 2 [4 Cores / 8 Threads]
42nd
6
3.1 +/- 0.1
Kaby/Coffee/Whiskey Lake [8 Cores / 16 Threads]
40th
5
2.9 +/- 0.1
[4 Cores / 4 Threads]
40th
3
2.9 +/- 0.1
Bulldozer [8 Cores / 8 Threads]
40th
4
2.9 +/- 0.1
Comet Lake [6 Cores / 12 Threads]
40th
5
2.9 +/- 0.1
Ice Lake [4 Cores / 8 Threads]
36th
5
2.5
Zen [4 Cores / 4 Threads]
35th
4
2.2
Zen [4 Cores / 4 Threads]
34th
3
2.0
Kaby/Coffee/Whiskey Lake [6 Cores / 12 Threads]
34th
9
2.0
Zen [4 Cores / 8 Threads]
34th
5
2.0
Skylake [4 Cores / 4 Threads]
34th
3
2.0
Kaby/Coffee/Whiskey Lake [6 Cores / 6 Threads]
34th
6
2.0
Kaby/Coffee/Whiskey Lake [4 Cores / 8 Threads]
34th
3
2.0
Zen [4 Cores / 8 Threads]
34th
7
2.0
Skylake [8 Cores / 8 Threads]
29th
6
1.9
Kaby/Coffee/Whiskey Lake [4 Cores / 8 Threads]
29th
6
1.9
Skylake [8 Cores / 8 Threads]
29th
9
1.9 +/- 0.1
Zen 2 [6 Cores / 6 Threads]
29th
5
1.9 +/- 0.1
Low-Tier
25th
< 1.9
Steamroller [2 Cores / 4 Threads]
25th
7
1.8 +/- 0.2
Kaby/Coffee/Whiskey Lake [4 Cores / 8 Threads]
25th
4
1.8
Kaby/Coffee/Whiskey Lake [2 Cores / 8 Threads]
25th
5
1.8
Kaby/Coffee/Whiskey Lake [4 Cores / 4 Threads]
23rd
3
1.7
Zen 2 [8 Cores / 8 Threads]
23rd
4
1.7 +/- 0.1
Kaby/Coffee/Whiskey Lake [6 Cores / 6 Threads]
23rd
3
1.7
Skylake [4 Cores / 4 Threads]
21st
9
1.6
Kaby/Coffee/Whiskey Lake [8 Cores / 8 Threads]
21st
4
1.6 +/- 0.1
Kaby/Coffee/Whiskey Lake [8 Cores / 8 Threads]
19th
3
1.5
Zen 2 [6 Cores / 12 Threads]
19th
6
1.5 +/- 0.1
Skylake [8 Cores / 8 Threads]
19th
3
1.5
Kaby/Coffee/Whiskey Lake [2 Cores / 4 Threads]
17th
6
1.4
Ivy Bridge [12 Cores / 12 Threads]
17th
3
1.4 +/- 0.1
Zen [2 Cores / 4 Threads]
17th
5
1.4
Ivy Bridge [4 Cores / 4 Threads]
15th
3
1.3 +/- 0.1
Haswell [4 Cores / 4 Threads]
15th
4
1.3
Broadwell [4 Cores / 4 Threads]
15th
3
1.3 +/- 0.1
Haswell [8 Cores / 8 Threads]
15th
6
1.3 +/- 0.1
Zen 2 [8 Cores / 16 Threads]
15th
7
1.3 +/- 0.1
Haswell [4 Cores / 4 Threads]
12th
3
1.2 +/- 0.1
Broadwell [12 Cores / 12 Threads]
12th
6
1.2
Haswell [8 Cores / 8 Threads]
12th
3
1.2 +/- 0.1
[8 Cores / 8 Threads]
12th
4
1.2 +/- 0.1
Zen 2 [6 Cores / 12 Threads]
10th
12
1.1
Kaby/Coffee/Whiskey Lake [4 Cores / 4 Threads]
7th
3
1.0
Haswell [8 Cores / 8 Threads]
7th
3
1.0 +/- 0.1
Ivy Bridge [8 Cores / 8 Threads]
7th
3
1.0
Comet Lake [4 Cores / 8 Threads]
7th
3
1.0
Sandy Bridge [4 Cores / 8 Threads]
2nd
3
0.5