How To Install mmmulti on Ubuntu 22.04

In this tutorial we learn how to install mmmulti on Ubuntu 22.04. mmmulti is memory backed multimap

Introduction

In this tutorial we learn how to install mmmulti on Ubuntu 22.04.

What is mmmulti

mmmulti is:

This implements a memory backed multimap intended for use where:

  • your keys are integers, or can be mapped to dense range of integers,
  • the memory mapped file is on fast storage, like an SSD (although this is not a requirement),
  • you have arbitrary values of fixed size (e.g. structs, other POD types) that can be sorted,
  • you don’t need dynamic updates of the table,
  • and you are likely to run out of memory of you use a traditional map or hash table,
  • but you can handle approximately 1 bit per record in RAM.

These may seem to be very specific, but many problems can be mapped into a dense integer set. mmmulti::map developed first as a data structure to support seqwish, which uses it to generate precise variation graphs from pairwise alignments between collections of sequences. As this multimap forms a key data processing kernel in the algorithm, it can scale to extremely large problem sizes, limited only by available disk space. Although performance is much slower than an in-memory structure, it is virtually guaranteed to be able to complete the compute.

There are three methods to install mmmulti on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install mmmulti Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install mmmulti using apt-get by running the following command:

sudo apt-get -y install mmmulti

Install mmmulti Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install mmmulti using apt by running the following command:

sudo apt -y install mmmulti

Install mmmulti 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 mmmulti using aptitude by running the following command:

sudo aptitude -y install mmmulti

How To Uninstall mmmulti on Ubuntu 22.04

To uninstall only the mmmulti package we can use the following command:

sudo apt-get remove mmmulti

Uninstall mmmulti And Its Dependencies

To uninstall mmmulti and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove mmmulti

Remove mmmulti Configurations and Data

To remove mmmulti configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge mmmulti

Remove mmmulti configuration, data, and all of its dependencies

We can use the following command to remove mmmulti configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge mmmulti

References

Summary

In this tutorial we learn how to install mmmulti package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.