Projects

GNU Compiler Collection

The GNU Compiler Collection includes front ends for C, C++, Objective-C, Fortran, Java, and Ada, as well as libraries for these languages (libstdc++, libgcj,...).

LAPACK

LAPACK provides routines for solving systems of simultaneous linear equations, least-squares solutions of linear systems of equations, eigenvalue problems, and singular value problems. The associated matrix factorizations (LU, Cholesky, QR, SVD, Schur, generalized Schur) are also provided, as are ... [More] related computations such as reordering of the Schur factorizations and estimating condition numbers. Dense and banded matrices are handled, but not general sparse matrices. In all areas, similar functionality is provided for real and complex matrices, in both single and double precision. Note: Ohloh's statistics are not accurate. LAPACK has dozens of major contributors, but most do not use any form of source control. Contributions are merged by only a few people, and then only in bursts. [Less]

ZOO Project

claimed by OSGeo - The Open Source Geospatial Foundation

ZOO is a WPS (Web Processing Service) open source project released under a MIT/X-11 style license . It provides an OGC WPS compliant developer-friendly framework to create and chain WPS Web services. ZOO is made of three parts: * ZOO Kernel : A powerful server-side C Kernel which makes it ... [More] possible to manage and chain Web services coded in different programming languages. * ZOO Services : A growing suite of example Web services based on various Open Source libraries. (get inspired !) * ZOO API : A server-side JavaScript API able to call and chain the ZOO Services, which makes the development and chaining processes easier. [Less]

ROSE Compiler

A compiler infrastructure to build source-to-source program transformation and analysis tools.

Quantum ESPRESSO

Quantum ESPRESSO is an integrated suite of Open-Source computer codes for electronic-structure calculations and materials modeling at the nanoscale. It is based on density-functional theory, plane waves, and pseudopotentials. Quantum ESPRESSO stands for opEn Source Package for Research in ... [More] Electronic Structure, Simulation, and Optimization. Quantum ESPRESSO is evolving towards a distribution of independent and inter-operable codes in the spirit of an open-source project. Researchers active in the field of electronic-structure calculations are encouraged to participate in the project by contributing their own codes or by implementing their own ideas into existing codes. [Less]

Cactus

Cactus is an open source problem solving environment designed for scientists and engineers. Its modular structure easily enables parallel computation across different architectures and collaborative code development between different groups. Cactus originated in the academic research community ... [More] , where it was developed and used over many years by a large international collaboration of physicists and computational scientists. [Less]

FreeON

claimed by Los Alamos National Lab

FreeON is an experimental, open source (GPL) suite of programs for linear scaling quantum chemistry. It is highly modular, and has been written from scratch for N-scaling SCF theory in Fortran95 and C. Platform independent I/O is supported with HDF5. FreeON should compile with most modern Linux ... [More] distributions and OS X. FreeON performs Hartree-Fock, pure Density Functional, and hybrid HF/DFT calculations (e.g. B3LYP) in a Cartesian-Gaussian LCAO basis. All algorithms are O(N) or O(N log N) for non-metallic systems. Periodic boundary conditions in 1, 2 and 3 dimensions have been implemented through the Lorentz field (Γ-point), and an internal coordinate geometry optimizer allows full (atom+cell) relaxation using analytic derivatives. Effective core potentials for energies and forces have been [Less]

CFD General Notation System (CGNS)

The CFD General Notation System (CGNS) provides a standard for recording and recovering computer data associated with the numerical solution of fluid dynamics equations. Current source is available by SVN, although only the downloads are supported.

Linalg

Linalg is a fast, LAPACK-based library for real and complex matrices in Ruby. Current functionality includes: singular value decomposition, eigenvectors and eigenvalues of a general matrix, least squares, LU, QR, Schur, Cholesky, stand-alone LAPACK bindings.

protoms

Program used to run Monte Carlo simulations of condensed phase systems. ProtoMS is a Monte Carlo free energy program, capable of performing complex simulations on a range of condensed-phase systems. It was placed under the GPL in 2005, and this site has been set up to support its continued ... [More] development and existence. If you would like to start using ProtoMS, then please take a look at the "Downloads" section. [Less]