Introduction
In this tutorial we learn how to install sleef on CentOS 8.
What is sleef
SLEEF stands for SIMD Library for Evaluating Elementary Functions. It implements vectorized versions of all C99 real floating point math functions. It can utilize SIMD instructions that are available on modern processors. SLEEF is designed to efficiently perform computation with SIMD instructions by reducing the use of conditional branches and scatter/gather memory access. The library contains implementations of all C99 real FP math functions in double precision and single precision. Different accuracy of the results can be chosen for a subset of the elementary functions; for this subset there are versions with up to 1 ULP error (which is the maximum error, not the average) and even faster versions with a few ULPs of error. For non-finite inputs and outputs, the functions return correct results as specified in the C99 standard.
We can use yum or dnf to install sleef on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install sleef.
Install sleef 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 sleef using dnf by running the following command:
sudo dnf -y install sleef
Install sleef 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 sleef using yum by running the following command:
sudo yum -y install sleef
How To Uninstall sleef on CentOS 8
To uninstall only the sleef package we can use the following command:
sudo dnf remove sleef
sleef Package Contents on CentOS 8
/usr/lib/.build-id
/usr/lib/.build-id/8b
/usr/lib/.build-id/8b/2c71fc5fb94bd793b6e98545bd13eeeeefdd5c
/usr/lib64/libsleef.so.3
/usr/lib64/libsleef.so.3.5.1
/usr/share/licenses/sleef
/usr/share/licenses/sleef/LICENSE.txt
References
Summary
In this tutorial we learn how to install sleef on CentOS 8 using yum and dnf.
