Introduction
In this tutorial we learn how to install blacs-openmpi on CentOS 8.
What is blacs-openmpi
The BLACS (Basic Linear Algebra Communication Subprograms) project is an ongoing investigation whose purpose is to create a linear algebra oriented message passing interface that may be implemented efficiently and uniformly across a large range of distributed memory platforms. The length of time required to implement efficient distributed memory algorithms makes it impractical to rewrite programs for every new parallel machine. The BLACS exist in order to make linear algebra applications both easier to program and more portable. This package contains BLACS libraries compiled with openmpi.
We can use yum or dnf to install blacs-openmpi on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install blacs-openmpi.
Install blacs-openmpi 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 blacs-openmpi using dnf by running the following command:
sudo dnf -y install blacs-openmpi
Install blacs-openmpi 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 blacs-openmpi using yum by running the following command:
sudo yum -y install blacs-openmpi
How To Uninstall blacs-openmpi on CentOS 8
To uninstall only the blacs-openmpi package we can use the following command:
sudo dnf remove blacs-openmpi
blacs-openmpi Package Contents on CentOS 8
/usr/lib/.build-id
/usr/lib/.build-id/4d
/usr/lib/.build-id/4d/8a6fdfbd966603be86e7dd6ef0a58e7e3e8d48
/usr/lib/.build-id/4d/8a6fdfbd966603be86e7dd6ef0a58e7e3e8d48.1
/usr/lib64/openmpi/lib/libmpiblacs.so.2
/usr/lib64/openmpi/lib/libmpiblacs.so.2.0.0
References
Summary
In this tutorial we learn how to install blacs-openmpi on CentOS 8 using yum and dnf.
