How To Install blacs-openmpi on Rocky Linux 8

In this tutorial we learn how to install blacs-openmpi on Rocky Linux 8. blacs-openmpi is BLACS libraries compiled against openmpi

Introduction

In this tutorial we learn how to install blacs-openmpi on Rocky Linux 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 Rocky Linux 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 Rocky Linux 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

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 Rocky Linux 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

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 Rocky Linux 8

To uninstall only the blacs-openmpi package we can use the following command:

sudo dnf remove blacs-openmpi

blacs-openmpi Package Contents on Rocky Linux 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 Rocky Linux 8 using yum and dnf.