𝖋𝖔𝖗𝖙𝖗𝖆𝖓

Programming in Fortran from zero to hero.

The introductory course, examples, and exercises in Fortran programming language. Originally written for personal needs but may be useful for other people.

“GOD IS REAL, unless declared INTEGER.”

This file is machine-generated. Please, don't edit manually.

• The notes from lectures are in notes directory.
• The codes based on lectures are in codes directory.
• The codes created on practicals are located in codes/practicals directory.

Overview

• Fortran programming basics
• Fortran parallel programming & high performance programming
  • OMP
  • MPI
  • Clusters
• Fortran numerical programming
  • BLAS
  • LAPACK

Build

At this moment, compile each example as

gfortran source/<file_name.f90> -o build/<file_name>

We are working on Make/CMake support.

To compile a module as an object use

gfortran -c path/to/module_name.f90 -o module_name

To compile program and link object as an executable use

gfortran path/to/program path/to/object -o program_name

Manage

We use Python 3.5+.

python manage.py index   # works
python manage.py clean   # works
python manage.py release # todo

Resources

• https://fortran-lang.org/
• https://fortran-lang.discourse.group/
• https://j3-fortran.org/
• https://github.com/j3-fortran/fortran_proposals

Zen of Fortran

• Fast is better than slow.
• Slow is better than unmaintainable.
• Array-oriented is better than object-oriented.
• Make everything as simple as possible – but no simpler (Einstein).
• Simplicity is robustness.
• Make it look like the math.
• All inputs and outputs explicit.
• All inputs and outputs carefully named and clearly defined – the closer to the point of declaration the better.
• Vector is better than loop.
• Matrix is better than vector (unless it’s complicated).
• Strided is better than scattered.
• Contiguous is better than strided.
• Broadcasting is a great idea – use where possible.