sial command not found

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

Introduction

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

sial: command not found

or when using sudo you get the following error message

sudo: sial: command not found

Solutions to sial: command not found

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

In Ubuntu sial is provided by aces3 package.

aces3 is:

ACESIII is an electronic structure calculation program with a focus on correlated methods. It is the parallel successor to ACESII, employing the Super Instruction Assembly Language (SIAL) as parallelization framework. Features include:

Energies, analytic gradients and analytic hessians for the following methods:

  • Restricted/unrestricted spin or restricted open-shell Hartree-Fock (HF)
  • Second-order Moeller-Plesset pertubation theory (MP2)

Energies and analytic gradients for the following methods:

  • Coupled cluster singles and doubles (CCSD)

Additionally, it can compute energies for the following methods:

  • Coupled cluster singles and doubles with pertubative triples (CCSD(T))
  • Quadratic configuration-interaction singles and doubles (QCISD)

Excited states can be calculated by the following methods:

  • Qadratic configuration interaction singles and doubles
  • Coupled cluster equation-of-motion (EOM-CC)

It also includes an internal coordinate geometry optimizer. If analytic gradients are not available, numerical gradients via finite differences are used.

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

sudo apt-get -y install aces3

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

You can also use apt command to install aces3.

sudo apt -y install aces3

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

sudo aptitude install aces3

Summary

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