Density-functional theory (DFT) code designed to perform total energy calculations for atoms, molecules, bulk solids and surfaces on parallel computers such as CM-5, IBM SP2 and ORIGIN 2000. These calculations are performed in real space on a grid that is adapted to spatially inhomogeneous cutoff (or resolution) requirements of a given system.

BRUCE and KYLIE are Fortran 77 codes by Rich Townsend which calculate synthetic spectra for stars undergoing non-radial pulsation (NRP). TLUSTY and SYNSPEC are Fortran 77 codes by Ivan Hubeny and Thierry Lanz for calculating synthetic plane-parallel stellar atmospheres and associated spectra, respectively.

Codes from a course by Walter Johnson. Mod_pot.f determines the parameters in a model potential for an atom with one valence electron. Nrhf.f calculates nonrelativistic Hartree-Fock wave functions for closed-shell atoms.

Package for creating and integrating chemistry schemes in atmospheric models without the need to write any Fortran code to solve the chemical rate equations. Developed by Dr. Glenn Carver and Dr. Paul Brown (assisted by Dr. Oliver Wild) of the Centre for Atmospheric Science, Cambridge University, UK.

Fortran 90 and HPF Programs Related to the Book "An Introduction to Computational Physics", by Tao Pang, Cambridge University Press (1997).

Fortran 77 codes by J. M. Thijssen to accompany his book.

Fortran 90 codes for course taught by Ari Harju.

Programs from the book by Rubin Landau.

Codes from course by David Tomanek.

Codes in Fortran and Basic from book by Steven Koonin and Dawn Meredith.

Monte Carlo code for studying neutral transport in plasmas, with emphasis on fusion applications.

Codes for course by Richard M. Martin.

Fortran code from the book by M.P. Allen and D. Tildesley.

Solves the one-dimensional Schrodinger equation for bound state eigenvalues and eigenfunctions corresponding to a potential V(x).

Performs ab-initio quantum-mechanical molecular dynamics (MD) using pseudopotentials and a plane wave basis set. The approach implemented in VAMP/VASP is based on a finite-temperature local-density approximation (with the free energy as variational quantity) and an exact evaluation of the instantaneous electronic ground state at each MD-step using efficient matrix diagonalization schemes and an efficient Pulay mixing.

Fortran 77 and 90 codes by Joan Masso.

Model of two tunnel junctions. Each junction has a resistance and a capacitance. By John K. Tomfohr and Otto Sankey.

Uses the Hirsch-Fye algorithm, implements methods in the paper "Dynamical Mean-Field Theory of Strongly Correlated Fermion Systems".

Programs for electronic structure calculations within Density-Functional Theory and Density-Functional Perturbation Theory, using a Plane-Wave basis set and pseudopotentials. PWscf is released under the GNU General Public License.

Electronic structure codes of Ole Anderson's group.

By Furio Ercolessi.

Neural Network program for jet discrimination and other High Energy Physics triggering situations, by Leif Lonnblad, Carsten Peterson, Hong Pi, and Thorsteinn Rognvaldsson.

Code for climate modeling, radiation, and astrophysics.

LPOTT: Pion-Nucleus Scattering; PiN: Chiral Color Dielectric Quark Model for pi-Nucleon Interactions; and LPOTp: Polarized Proton Scattering from Polarized Nuclei, in Parallel, by Rubin Landau

Parallel plane wave pseudopotential program for atomistic total energy calculation based on density functional theory. It is designed for large system simulations to be run on large parallel computers like Cray T3E and IBM SP machines at NERSC. It is developed under U.S. Department of Energy fundings and it is a freely distributed public source code.

Code for CTEQ, GRV, MRS, and ALEKHIN distributions.

Performs a variety of types of simulation on 3D periodic solids, gas phase clusters and isolated defects in a bulk material. In particular GULP is designed to handle both molecular solids and ionic materials through the use of the shell model. One difference between GULP and other similar programs is that symmetry is used for solids to accelerate the calculations and to simplify the input. Freely available to academics only.

Several are implemented in Fortran.

Fortran 90 code to check Physical Units and Dimensions, by Grant W. Petty, professor of Atmospheric & Oceanic Sciences.

Codes to calculate bulk fluxes for the Coupled Ocean Atmosphere Response Experiment.

By Charlie Zender, professor of Earth System Science.

Developed under the auspices of the Department of Defense High Performance Computing Modernization Program.

Applied to planetary and stellar atmospheres, by Aleksandra Borysow.

Code to read NetCDF, convert the minute timestamp from ship data provided by WOCE-MET back into a standard year/month/day/hour/minute time, convert a standard year/month/day/hour/minute time into the minute timestamp from ship data provided by WOCE-MET, and compute meteorological true winds.

Codes from research presented at a conference on the subject.

Links to programs in material science, many in Fortran.

T-matrix and related codes, by Arturo Quirantes.

Fortran 90 code to study low-frequency turbulence in magnetized plasma.

Fortran 90 code by Jim Ferry describing the gravitational field on the surface of a planet-sized cube.

Calculates the SUSY spectrum using low energy data and a user supplied high scale model as input. The spectrum is used to calculate two- and three body decay modes of supersymmetric particle as well as of Higgs bosons. By Werner Porod.

Codes used in the research of the group.

Fortran 90 code of Frank Lunkeit and Edilbert Kirk.

Fortran 90 code by Antony Lewis and Antony Challinor.

Computes cosmic microwave background anisotropy, polarization and matter power spectra.

Red-Green-Blue values for the visible wavelength, by Dan Bruton.

Fortran 95 modules to do atomistic and molecular simulations of solid state, liquid, molecular and biological systems. The methods included range from first principles ab initio density functional methods to parametrised, classical pair- and many-body potentials.

Collection of Fortran programs to facilitate computer modeling of geophysical processes. The package contains programs for computing certain common differential operators, including divergence, vorticity, gradients, and the Laplacian of both scalar and vector functions.

Efficient spectral dynamical core, written in Fortran 77 and primarily designed to run efficiently on small clusters composed of distributed memory computers using MPI. Can be run in two dynamical core versions: either as a dry, adiabatic primitive equations model in pressure coordinates, or as a shallow water equations model.

Exhibit on visualization of concepts from high school physics. The scientific data is generated on a UNIX workstation by a Fortran 90 program (provided at the site) and then exported to an Apple Macintosh.  

Generates pseudopotentials for many elements.

Total energy program based on density functional theory. It uses a plane wave basis for the valence electronic states and describes the core-electron interactions with Vanderbilt ultrasoft pseudo-potentials.

Finds the total energy, charge density, and electronic structure of systems made of electrons and nuclei, using pseudopotentials and a plane-wave basis.

Fortran 90 and High Performance Fortran code implementing nonadaptive and adaptive O(N) hierarchical N-body methods in 3-D for gravitational and electrostatic fields.

Programs by Werner Krauth for Monte Carlo applied to physics.

C library designed to provide DOM parsing functionality to Fortran 77. It acts as a wrapper to gdome2 library.

Fast global ionospheric and plasmaspheric model based on a combination of the parameterized output of several regional theoretical ionosphere models and an empirical plasmaspheric model.

Codes for density calculations and manipulations, Hooke's atom subroutines, includable files, with parameters and commons, non-interacting kinetic energy, matrix manipulations routines, miscellanous numerical methods, mostly calculus, calculations of potentials and expectation values, and evaluation of approximate XC functionals.

Code by Bruce T. Draine to study the scattering and absorption of light by small particles.

Codes by Aleksandar Donev and Phillip Duxbury for course.

Adaptive particle-particle, particle-mesh plus smoothed particle hydrodynamics code.

A Fortran and MATLAB package designed for the numerical solution of continuous 3D minimum time orbit transfer around the Earth.

Has programs from Gaspani for spectral analysis, GENSYS for general synthesis of light curves and line profiles for close binary systems, WINK for eclipsing binary curve prediction, and WUMA for generating line-broadening profiles.

Fortran 77 programs by Toshiaki Iitaka.

Plane wave/pseudopotential implementation of Density Functional Theory, particularly designed for ab-initio molecular dynamics. Its first version was developed by Jurg Hutter at IBM Zurich Research Laboratory starting from the original Car-Parrinello codes. Free for non-profit organizations.

Programs to compute radiative corrections in inclusive, semiexclusive and exclusive electron scattering.

Astronomy codes.

Fortran code to perform dimensional analysis, by Ron Davis.

Fortran 90 code by Dale Ostlie containing up-to-date physical and astronomical constants and identifying the correct kind parameters for the current machine.

Fortran 90 codes from course by Dale Ostlie.

Library of Fortran 90 modules that has been designed for the simulation of molecular systems using molecular mechanical (MM) and hybrid quantum mechanical (QM)/MM potential energy functions.

Fortran 90 program by Hans-Marc Erkinger for Monte Carlo simulation of the Ising model.

Fortran 77 program by Per Kraulis for Silicon Graphics machines, free for academics.

Code for the Ising model by Gyorgy Korniss.

Electromagnetic software in Fortran and C, and related information.

EVENT2 is a program for two- and three-jet events in e+e- annihilation. DISENT is a program for (1+1)- and (2+1)-jet events in deep inelastic scattering. GBOOK creates line graphs.

High-order finite-difference Fortran 90 code for compressible hydrodynamic flows with magnetic fields. It is highly modular and can easily be adapted to different types of problems. The code runs efficiently under MPI on massively parallel shared- or distributed-memory computers, like e.g. large Beowulf clusters.

Computational physics development environment written in Fortran 90. It provides an environment where the physics of real systems can be modeled, by discretizing a set of partial differential equations on a mesh and solving the resultant algebraic system.

The PSU/NCAR mesoscale model (known as MM5) is a limited-area, nonhydrostatic, terrain-following sigma-coordinate model designed to simulate or predict mesoscale atmospheric circulation. The model is supported by several pre- and post-processing programs, which are referred to collectively as the MM5 modeling system. The MM5 modeling system software is mostly written in Fortran.

Fortran 95 code for real-time weather forecasts.

Fortran and C programs for processing meteorological and oceanographic data from the Scientific Computing Division of the National Center for Atmospheric Research.

Comprehensive regional to stormscale atmospheric modeling/ prediction system, written in Fortran 90.

Limited-area atmospheric model using spectral method for computation, written in Fortran 77.

Determines earthquake locations and magnitudes from seismic network data like first-arrival P and S arrival times, amplitudes and coda durations.

Code for properties of fluids, materials, and superconductors.

Materials science total energy planewave pseudopotential Fortran 90 code, by Andrew Canning.

Fortran, Matlab, and C++ codes from by the book by Alejandro L. Garcia.

FCTMHD3D solves magnetohydrodynamics problems in three spatial dimensions, using positivity- and monotonicity-preserving FCT techniques in a finite-volume representation. CRUNCH3D-T3D and CRUNCH3D-T3E are high-performance codes for solving the viscoresistive equations of dissipative MHD, using high-fidelity Fourier collocation techniques. LCPFCT2 and MHDFCT2 solve the generalized continuity and hydromagnetic equations of hydrodynamics and MHD in two spatial dimensions, using FCT techniques.

SPECFEM3D_BASIN is a spectral-element package which simulates seismic wave propagation in sedimentary basins. SPECFEM3D_GLOBE is a spectral-element package which simulates global and regional seismic wave propagation. The packages are written in Fortran 90, conform strictly to the Fortran 95 standard, and use the Message Passing Interface (MPI).

Fortran 90 code incorporating modern numerical techniques into ocean modeling. Code and documentation can be obtained from the site.

Links to electronic structure codes, many in Fortran.

Fortran 77, 90, and C codes.

Fortran 90 code by Daniel Reinganum program to evolve a self-gravitating N-body system, using a hierarchical O(N log N) algorithm to compute gravitational forces.

Weather forecasting code in Fortran 90. Source code can be requested from the site.

Fortran 77 code illustrating the use of spectral methods to solve a nontrivial hydrodynamics problem.

Code for a Radiative Transfer Model (RTM), RTM Coefficient Assembly, Infrared Sea Surface Emissivity (IRSSE), EmisCoeff utility, Emissivity utility, Planck functions, Profile utility, SensorInfo utility, SpcCoeff utility, and SRF utility.

Simulates ferromagnets and anti-ferromagnets.

Ordering and Vacancy Migration in 2-D Binary Alloy, by D. Johnson.

Fortran 77 and 90 codes by Mladen Rogina, covering ODEs, PDEs, linear algrebra, and other topics.

Generic Monte-Carlo generator written in Fortran 95 by Wolfgang Kilian for multi-particle processes at high-energy colliders.

A general software package in Perl and Fortran 90 for hydro- and magnetohydrodynamics. Developed as part of the Massively Parallel Programming, Computational Magneto-Fluid Dynamics project.

Fortran 77 code by Rasmus Munk Larsen that implements the subtractive optimally localized averages (SOLA) inversion algorithm. The current version of SOLApack is specifically written to infer the symmetric component of the 2-d solar rotation rate from measured rotational frequency splittings of the eigenmodes of global solar oscillation.

Used operationally by the U.S. Navy for short-term numerical weather prediction for various regions around the world. Parts of the code can be downloaded from the site, with registration.

Codes to process geophysical and meteorological data.

Software to deal accurately and efficiently with complex angular masks of galaxy surveys.

Software package for calibration, data analysis, image display, plotting, and a variety of ancillary tasks on astronomical data.

Written in Fortran 90.

Fortran 90 code for climate modelling.

Many Fortran codes -- search for "fortran" on site.

Fortran 90 program for ab initio virtual experimentation on a range of systems. Electrons are described quantum-mechanically within the Density-Functional Theory (DFT), in its time-dependent form (TDDFT) when doing simulations in time. Nuclei are described classically as point particles. Electron-nucleus interaction is described within the pseudopotential approximation.

Simulator code for solving nuclear astrophysical problems related to exploding stars. This website contains information about the astrophysics, the code, and related basic physics and computer science efforts.

By J.D. Maldonado and F.X. Timmes.

Scalar implementation of the Car-Parrinello algorithm originally prepared as a tutorial tool for the 1997 "Spring College in computational Physics" at ICTP (Trieste Italy). The code is self-contained, and most of the sources are written in Fortran 77, with only few C functions.

Fortran 90 code using density functional theory to provide a good atomic-level description of all manner of materials and molecules. Castep can give information about total energies, forces and stresses on an atomic system, as well as calculating optimum geometries, band structures, optical spectra and much more. It can also perform molecular dynamics simulations.

Full-potential linearised augmented-planewave (FP-LAPW) Fortran 90 code. Written mainly at Karl-Franzens-Universität Graz as a milestone of the EXCITING EU Research and Training Network, the code is designed to be as developer friendly as possible so that new developments in the field of density functional theory (DFT) can be added quickly and reliably. The code is freely available under the GNU General Public License.

Fortran tools to write standardized NetCDF output for a variety of ocean circulation models. The files contain required metadata to be compatible with DMACS standards. A C++ particle trajectory tool reads NetCDF files to make particle paths.

Fortran 90 library of forward and gradient routines for fast radiative transfer calculations for high spectral resolution infrared satellite sounders.

Library of Fortran and Python code to calculate the shock response spectrum.

Nonlinear aeroelastic solver written in Fortran 90. At the moment only vortex lattice aerodynamics are available, but the hope is for a higher fidelity aerodynamic model to be developed for use in the current code.

Computational Fluid Dynamics solver aimed to solve multi-physics problems with unstructured finite volume methods will be able to use dynamical refinement and MPI-based parallel processing (Fortran-90-based, uses BLAS, LAPACK, CGNS libraries).

Fortran 90 code for atmospheric radiative transfer modelling in the mid-infrared spectral range.