How To Install rheolef on Ubuntu 18.04
Introduction
In this tutorial we learn how to install rheolef on Ubuntu 18.04.
What is rheolef
rheolef is:
Rheolef is a computer environment that serves as a convenient laboratory for computations in applied mathematics involving finite element-like methods. It provides a set of commands and C++ algorithms and containers.
Most basically, containers cover the classic graph data structure for sparse matrix formats and finite element meshes. At a higher level of abstraction, they can handle approximate finite element spaces, discrete fields. Flexible and powerful expressions are used to specify bilinear forms.
Current applications include:
- massively distributed memory finite element environment, based on MPI;
- elasticity, Stokes and Navier-Stokes problems in 2D and 3D;
- complex fluids applications: viscoplasticity, viscoelasticity, wall slip;
- nonlinear problems with fixed-point, Newton and continuation methods;
- high order polynomials, mixed elements and discontinuous Galerkin methods;
- auto-adaptive mesh approaches;
- axisymmetric problems;
- multi-regions and variable coefficient problems.
This package provides the rheolef commands. These support input and output in various file formats for mesh-generators and numerical data visualization systems such as MayaVi, Paraview, and gnuplot.
There are three methods to install rheolef 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 rheolef Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install rheolef using apt-get by running the following command:
sudo apt-get -y install rheolef
Install rheolef Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install rheolef using apt by running the following command:
sudo apt -y install rheolef
Install rheolef 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 rheolef using aptitude by running the following command:
sudo aptitude -y install rheolef
How To Uninstall rheolef on Ubuntu 18.04
To uninstall only the rheolef package we can use the following command:
sudo apt-get remove rheolef
Uninstall rheolef And Its Dependencies
To uninstall rheolef and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove rheolef
Remove rheolef Configurations and Data
To remove rheolef configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge rheolef
Remove rheolef configuration, data, and all of its dependencies
We can use the following command to remove rheolef configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge rheolef
References
Summary
In this tutorial we learn how to install rheolef package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
