Fortran

Utility scripts and programs for VASP calculations

Tool for setting up an ORCA calculation using the atom-in-molecule adaptive q-vSZP basis set.

Quantum chemistry and solid state physics software package

PRIMA is a package for solving general nonlinear optimization problems without using derivatives. It provides the reference implementation for Powell's derivative-free optimization methods, i.e., COBYLA, UOBYQA, NEWUOA, BOBYQA, and LINCOA. PRIMA means Reference Implementation for Powell's methods with Modernization and Amelioration, P for Powell.

ECMWF atmospheric radiation scheme

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran Package Manager (fpm)

Unstructured Compressible Navier Stokes 3D code (UCNS3D)

Library first implementation of the D3 dispersion correction

Ionospheric fluid electrodynamic model

NWChem: Open Source High-Performance Computational Chemistry

Official git repository of Elmer FEM software

The official repository for the Weather Research and Forecasting (WRF) model

FLEXI: A high order discontinuous Galerkin framework for hyperbolic–parabolic conservation laws

This is the official GPL repository of the yambo code

Main repository for the NREL-supported OpenFAST whole-turbine and FAST.Farm wind farm simulation codes.

repository for the Functionally Assembled Terrestrial Ecosystem Simulator (FATES)

LAPACK development repository

TenStream - a 3D radiative transfer solver for earth system models

A Modern Fortran JSON API