mmmulti command not found

In this troubleshooting guide we learn how to fix mmmulti command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

mmmulti: command not found

or when using sudo you get the following error message

sudo: mmmulti: command not found

Solutions to mmmulti: command not found

How To Fix mmmulti: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu mmmulti is provided by mmmulti package.

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.

To fix this problem, we can install more using the command below.

sudo apt-get -y install mmmulti

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install mmmulti.

sudo apt -y install mmmulti

Or if you have aptitude installed you can use the following command.

sudo aptitude install mmmulti

Summary

In this tutorial we learn how to fix mmmulti command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.