How To Install libcolamd2 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libcolamd2 on Ubuntu 18.04.
What is libcolamd2
libcolamd2 is:
Suitesparse is a collection of libraries for computations involving sparse matrices.
The COLAMD library implements the “COLumn Approximate Minimum Degree ordering” algorithm. It computes a permutation vector P such that the LU factorization of A (:,P) tends to be sparser than that of A. The Cholesky factorization of (A (:,P))’*(A (:,P)) will also tend to be sparser than that of A’*A.
There are three methods to install libcolamd2 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 libcolamd2 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libcolamd2 using apt-get by running the following command:
sudo apt-get -y install libcolamd2
Install libcolamd2 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libcolamd2 using apt by running the following command:
sudo apt -y install libcolamd2
Install libcolamd2 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 libcolamd2 using aptitude by running the following command:
sudo aptitude -y install libcolamd2
How To Uninstall libcolamd2 on Ubuntu 18.04
To uninstall only the libcolamd2 package we can use the following command:
sudo apt-get remove libcolamd2
Uninstall libcolamd2 And Its Dependencies
To uninstall libcolamd2 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libcolamd2
Remove libcolamd2 Configurations and Data
To remove libcolamd2 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libcolamd2
Remove libcolamd2 configuration, data, and all of its dependencies
We can use the following command to remove libcolamd2 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libcolamd2
References
Summary
In this tutorial we learn how to install libcolamd2 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
