How To Install libhwloc-dev on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libhwloc-dev on Ubuntu 18.04.
What is libhwloc-dev
libhwloc-dev is:
Hardware Locality (hwloc) provides a portable abstraction (across OS, versions, architectures, …) of the hierarchical topology of modern architectures. It primarily aims at helping high-performance computing applications with gathering information about the hardware so as to exploit it accordingly and efficiently.
libhwloc provides a hierarchical view of the machine, NUMA memory nodes, sockets, shared caches, cores and simultaneous multithreading. It also gathers various attributes such as cache and memory information.
libhwloc supports old kernels not having sysfs topology information, with knowledge of cpusets, offline cpus, and Kerrighed support
This package contains static libraries and development headers.
There are three methods to install libhwloc-dev 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 libhwloc-dev Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libhwloc-dev using apt-get by running the following command:
sudo apt-get -y install libhwloc-dev
Install libhwloc-dev Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libhwloc-dev using apt by running the following command:
sudo apt -y install libhwloc-dev
Install libhwloc-dev 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 libhwloc-dev using aptitude by running the following command:
sudo aptitude -y install libhwloc-dev
How To Uninstall libhwloc-dev on Ubuntu 18.04
To uninstall only the libhwloc-dev package we can use the following command:
sudo apt-get remove libhwloc-dev
Uninstall libhwloc-dev And Its Dependencies
To uninstall libhwloc-dev and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libhwloc-dev
Remove libhwloc-dev Configurations and Data
To remove libhwloc-dev configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libhwloc-dev
Remove libhwloc-dev configuration, data, and all of its dependencies
We can use the following command to remove libhwloc-dev configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libhwloc-dev
References
Summary
In this tutorial we learn how to install libhwloc-dev package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
