FFTW

FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions.

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

Project Site

fftw.org

Test Created

22 January 2015

Last Updated

16 August 2017

Test Maintainer

Michael Larabel 

Test Type

Processor

Average Install Time

2 Minutes, 40 Seconds

Average Run Time

5 Minutes, 57 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

100k+ Downloads

Supported Platforms


Public Result Uploads *Reported Installs **Reported Test Completions **Test Profile Page Views ***OpenBenchmarking.orgEventsFFTW Popularity Statisticspts/fftw2015.012015.042015.072015.102016.012016.042016.072016.102017.012017.042017.072017.102018.012018.042018.072018.102019.012019.042019.072019.102020.012020.042020.072020.102021.012021.042021.072021.107K14K21K28K35K
* 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 7 December 2021.
Float + SSE50.9%Stock49.1%Build Option PopularityOpenBenchmarking.org
2D FFT Size 3212.2%2D FFT Size 409640.0%1D FFT Size 3221.3%1D FFT Size 409626.4%Size Option PopularityOpenBenchmarking.org

Revision History

pts/fftw-1.2.0   [View Source]   Wed, 16 Aug 2017 10:29:55 GMT
Update against fftw 3.3.6, add AVX2/AVX512 enables

pts/fftw-1.1.0   [View Source]   Sat, 24 Jan 2015 12:28:44 GMT
Switch to using Mflops as a scale.

pts/fftw-1.0.0   [View Source]   Thu, 22 Jan 2015 11:35:11 GMT
Initial commit of fftw.

Suites Using This Test

C/C++ Compiler Tests

CPU Massive

Scientific Computing

HPC - High Performance Computing


Performance Metrics

Analyze Test Configuration:

FFTW 3.3.6

Build: Stock - Size: 1D FFT Size 32

OpenBenchmarking.org metrics for this test profile configuration based on 638 public results since 16 August 2017 with the latest data as of 6 December 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
# Compatible Public Results
Mflops (Average)
100th
3
23032 +/- 261
97th
9
15406 +/- 493
94th
11
14655 +/- 1076
94th
14
14537 +/- 1024
93rd
9
13757 +/- 1032
93rd
6
13517 +/- 1197
91st
6
13265 +/- 636
86th
4
12059 +/- 311
85th
12
11864 +/- 928
84th
3
11752 +/- 78
83rd
5
11587 +/- 290
83rd
3
11532 +/- 51
81st
6
11304 +/- 923
80th
4
11278 +/- 70
78th
4
11093 +/- 366
77th
3
10974 +/- 132
Mid-Tier
75th
< 10649
73rd
4
10199 +/- 1325
72nd
4
10127 +/- 13
69th
8
9564 +/- 269
65th
3
9276 +/- 378
56th
16
8750 +/- 321
53rd
8
8453 +/- 487
Median
50th
8221
49th
7
8139 +/- 325
37th
5
7710 +/- 1000
33rd
5
7441 +/- 577
33rd
3
7437 +/- 26
33rd
5
7430 +/- 151
31st
3
7342 +/- 28
29th
4
7087 +/- 54
26th
3
6708 +/- 271
Low-Tier
25th
< 6570
25th
7
6437 +/- 614
25th
4
6396 +/- 730
18th
4
5574 +/- 34
OpenBenchmarking.orgDistribution Of Public Results - Build: Stock - Size: 1D FFT Size 32635 Results Range From 257 To 33707 Mflops257926159522642933360242714940560962786947761682858954962310292109611163012299129681363714306149751564416313169821765118320189891965820327209962166522334230032367224341250102567926348270172768628355290242969330362310313170032369330383370720406080100

Based on OpenBenchmarking.org data, the selected test / test configuration (FFTW 3.3.6 - Build: Stock - Size: 1D FFT Size 32) has an average run-time of 2 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 BenchmarkBuild: Stock - Size: 1D FFT Size 32Run-Time246810Min: 1 / Avg: 1 / Max: 1

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 1%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsBuild: Stock - Size: 1D FFT Size 32Deviation3691215Min: 0 / Avg: 0.96 / Max: 12

Does It Scale Well With Increasing Cores?

No, based on the automated analysis of the collected public benchmark data, this test / test settings does not 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.

IntelAMDOpenBenchmarking.orgRelative Core Scaling To BaseFFTW CPU Core ScalingBuild: Stock - Size: 1D FFT Size 3246812162432640.48750.9751.46251.952.4375

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