AutoDiff Course Material

The repository contains the AutoDiff course material: notes/slides, codes, exercises and reading material. The course uses Fortran and Julia programming language for the demo and exercises. Tapenade AD tool is used for the exercises/demo in Fortran. Emzyme and Zygote is used for AD in Julia language.

We assume that the user has access to a (virtual) machine with GNU/Linux preferably Debian based distro with an active internet connection and a web browser. Install all necessary build/compiler toolchains in the GNU/Linux distro something similar to,

> sudo apt-get install build-essentials gfortran gcc g++ cmake

Tapenade setup

The hands-on demo and exercises need only the web version of the Tapenade at the URL,

http://www-tapenade.inria.fr:8080/tapenade/index.jsp

Advanced users

If you wish to install Tapenade on your own machine then make sure you download the latest version from the URL

Tapenade online

Tapenade needs Java runtime environment which can be installed here,

https://www.java.com/en/download/help/linux_x64_install.html

or on Debian/Ubuntu linux you have something equivalent of

> sudo apt install default-jre

Fortran compiler

To run the Fortran examples and demo one requires installation of Fortran compilers. Linux comes packaged with the gfortran compiler as part of the gcc tool chain.

> sudo apt-get install gfortran

Julia setup

You can install Julia using the instructions in the website

Julia Download link

Please install version 1.10.4 of Julia to be compatible with the Pluto notebooks.

Also install Pluto notebook by following the instructions here,

Pluto Install Instructions

How to run the notebooks

Fire up Julia interpreter

$> cd IITM_AD_Course/exercises/day1
$> julia
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.10.4 (2024-06-04)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

julia> import Pluto

julia> Pluto.run()

This will open Pluto in a web browser. Just open the .jl exercise notebooks and start learning !