How To Install root-fftw on CentOS 8

root-fftw is FFTW library for ROOT

Introduction

In this tutorial we learn how to install root-fftw on CentOS 8.

What is root-fftw

This package contains the Fast Fourier Transform extension for ROOT. It uses the very fast fftw (version 3) library.

We can use yum or dnf to install root-fftw on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install root-fftw.

Install root-fftw on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install root-fftw using dnf by running the following command:

sudo dnf -y install root-fftw

Install root-fftw on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install root-fftw using yum by running the following command:

sudo yum -y install root-fftw

How To Uninstall root-fftw on CentOS 8

To uninstall only the root-fftw package we can use the following command:

sudo dnf remove root-fftw

root-fftw Package Contents on CentOS 8

/usr/include/root/TFFTComplex.h
/usr/include/root/TFFTComplexReal.h
/usr/include/root/TFFTReal.h
/usr/include/root/TFFTRealComplex.h
/usr/lib/.build-id
/usr/lib/.build-id/42/f55859e346878b4931eb93248c9bdc7681b2b8
/usr/lib64/root/libFFTW.rootmap
/usr/lib64/root/libFFTW.so
/usr/lib64/root/libFFTW.so.6.22
/usr/lib64/root/libFFTW.so.6.22.08
/usr/lib64/root/libFFTW_rdict.pcm
/usr/share/root/plugins/TVirtualFFT/P010_TFFTComplex.C
/usr/share/root/plugins/TVirtualFFT/P020_TFFTComplexReal.C
/usr/share/root/plugins/TVirtualFFT/P030_TFFTRealComplex.C
/usr/share/root/plugins/TVirtualFFT/P040_TFFTReal.C

References

Summary

In this tutorial we learn how to install root-fftw on CentOS 8 using yum and dnf.