How To Install libopenmpi2 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libopenmpi2 on Ubuntu 18.04.
What is libopenmpi2
libopenmpi2 is:
Open MPI is a project combining technologies and resources from several other projects (FT-MPI, LA-MPI, LAM/MPI, and PACX-MPI) in order to build the best MPI library available. A completely new MPI-3.1 compliant implementation, Open MPI offers advantages for system and software vendors, application developers and computer science researchers.
This package contains the Open MPI shared libraries.
There are three methods to install libopenmpi2 on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libopenmpi2 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libopenmpi2 using apt-get by running the following command:
sudo apt-get -y install libopenmpi2
Install libopenmpi2 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libopenmpi2 using apt by running the following command:
sudo apt -y install libopenmpi2
Install libopenmpi2 Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libopenmpi2 using aptitude by running the following command:
sudo aptitude -y install libopenmpi2
How To Uninstall libopenmpi2 on Ubuntu 18.04
To uninstall only the libopenmpi2 package we can use the following command:
sudo apt-get remove libopenmpi2
Uninstall libopenmpi2 And Its Dependencies
To uninstall libopenmpi2 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libopenmpi2
Remove libopenmpi2 Configurations and Data
To remove libopenmpi2 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libopenmpi2
Remove libopenmpi2 configuration, data, and all of its dependencies
We can use the following command to remove libopenmpi2 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libopenmpi2
References
Summary
In this tutorial we learn how to install libopenmpi2 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
