How To Install libccolamd2 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libccolamd2 on Ubuntu 18.04.
What is libccolamd2
libccolamd2 is:
Suitesparse is a collection of libraries for computations involving sparse matrices.
The CCOLAMD library implements the “Constrained 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 libccolamd2 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 libccolamd2 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libccolamd2 using apt-get by running the following command:
sudo apt-get -y install libccolamd2
Install libccolamd2 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libccolamd2 using apt by running the following command:
sudo apt -y install libccolamd2
Install libccolamd2 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 libccolamd2 using aptitude by running the following command:
sudo aptitude -y install libccolamd2
How To Uninstall libccolamd2 on Ubuntu 18.04
To uninstall only the libccolamd2 package we can use the following command:
sudo apt-get remove libccolamd2
Uninstall libccolamd2 And Its Dependencies
To uninstall libccolamd2 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libccolamd2
Remove libccolamd2 Configurations and Data
To remove libccolamd2 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libccolamd2
Remove libccolamd2 configuration, data, and all of its dependencies
We can use the following command to remove libccolamd2 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libccolamd2
References
Summary
In this tutorial we learn how to install libccolamd2 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
