GNXAS

  • Level of openness 2 ★★☆
  • Document quality 3 ★★★

An application for analysis of extended X-ray absorption fine structure (EXAFS) based on the multiple scattering theory. This application implements relativistic self-consistent calculation using the muffin-tin approximation to evaluate atomic phase shift including effect of neighboring atoms. Spectra with any number of edges can be treated simultaneously. Complex background multi-electron excitation can also be evaluated.

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GPAW

  • Level of openness 3 ★★★
  • Document quality 3 ★★★

An open-source application for first-principles calculation based on the PAW method. By utilizing real-space or atom-localized basis sets, this application performs electronic structure calculation based on the density functional theory as well as the GW approximation. Simulations are set up using the interface provided by Atomic Simulation Environment (ASE). The code is written in C and python, and is available under GPL.

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Gromacs

  • Level of openness 3 ★★★
  • Document quality 3 ★★★

Open-source package for molecular dynamics simulation designed for biological macromolecules. This package can perform molecular dynamics simulation of biological macromolecules such as proteins, lipids, and nuclear acids as well as solutions by controlling temperature and pressure. This package can treat long-range interaction and free energy, and is designed for parallel computing.

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Gaussian

  • Level of openness 0 ☆☆☆
  • Document quality 3 ★★★

Standard payware for ab-initio quantum chemical calculation. This package performs electronic-state simulation of molecules by various quantum chemical theory such as Hartree-Fock theory, density functional theory, configuration interaction theory, etc. This package can perform structure optimization, calculation of transition states, evaluation of optical responses with high speed, and have many users in the world.

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GaussView

  • Level of openness 0 ☆☆☆
  • Document quality 2 ★★☆

An official Gaussian-series payware for molecular visualization. Must be used with Gaussian, the well-known software of quantum chemistry calculation. This application provides many functions such as molecular modeling, parameter setting, job management and visualization of calculation results. It also performs input file generation for Gaussian, and supports read/write of files with other formats such as Sybyl, Molden, PDB and CIF.

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GENESIS

  • Level of openness 3 ★★★
  • Document quality 2 ★★☆

An open-source application for molecular dynamics simulation of biomolecules. This application is optimized for massive parallel computing environments such as the K-computer, and can perform high-speed molecular dynamical simulation of proteins and biomolecules. This application supports both all atoms calculation and coarse-grained model calculation, and can treat extended ensemble such as a replica exchange method. This code is released under GPL license.

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GISP

  • Level of openness 3 ★★★
  • Document quality 2 ★★☆

An educational support application for molecular dynamics. This application provides a graphical user interface (GUI) for Gromacs. Molecular dynamics simulation of liquid and proteins in solvent can be performed easily by choosing a PDB file on GUI.

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GSAS-II

  • Level of openness 2 ★★☆
  • Document quality 2 ★★☆

An application for the single-crystal analysis and the Rietveld analysis used in X-ray and neutron diffraction experiments. This application determines crystal structure models of materials from X-ray and neutron diffraction data on single-crystal and powder samples. It supports Windows, Mac OS, and Linux. Graphical user interface (GUI) can be used.

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GAMESS-UK

  • Level of openness 0 ☆☆☆
  • Document quality 2 ★★☆

An application for ab initio quantum chemical calculation. This application performs electronic structure calculation of molecules by the Hartree-Fock, density functional, many-body perturbation, configuration interaction theories, and so on. This application is free only for academic use in United Kingdom. Although it histrically shares core programs with GAMESS-US, different functions have been added in later development.

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GSYS

  • Level of openness 2 ★★☆
  • Document quality 2 ★★☆

A tool to extract numerical data from graphs in pictures. Operations of GSYS is based on the GUI and it is easy to generate the numerical data from the given graph.

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