Nutch is highly scalable Web searching software which builds on top of Apache Hadoop and Lucene Java. Key features include a Web crawler, indexer, crawl management tools, parsers for HTML, PDF, DOC, and several other document formats, and an expandable architecture that allows you to plug in additional functionality such as document parsers, custom scoring algorithms, custom content parsers, protocols, and more.
Autodl2 is a simple to manage and extensible file transfer system that can be configured simply using a configuration file. The system is designed to be lightweight and handle multiple file transfer protocols. Currently only SFTP is supported, though other systems can be added via a plugin system.
Autodia is a command line Perl application that generates UML class diagrams from source code, SQL, and database connections. It supports multiple programming languages including SQL, and can output images (using GraphViz/VCG/SpringGraph), Dia XML and Umbrello XML, or custom formats using templates.
BACnet is an implementation of the BACnet (Building Automation and Control Networks) protocol specifically tailored for embedded systems. BACnet itself is a standard routable protocol designed to handle communications in automation in buildings, such as air conditioning systems and other HVAC equipment.
Block Locally Optimal Preconditioned Eigenvalue Xolvers (BLOPEX) is a package, written in C and MATLAB, that includes an eigensolver implemented with the Locally Optimal Block Preconditioned Conjugate Gradient Method (LOBPCG). BLOPEX supports parallel MPI-based computations. BLOPEX is incorporated in the HYPRE package and is available as an external block to the PETSc package. Its main features are a matrix-free iterative method for computing several extreme eigenpairs of symmetric positive generalized eigenproblems; a user-defined symmetric positive preconditioner; robustness with respect to random initial approximations, variable preconditioners, and ill-conditioning (up to 10^16) of the stiffness matrix; and apparently optimal convergence speed.
BRL-CAD is a powerful constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing support for rendering and geometric analysis, path-tracing for realistic image synthesis, network distributed framebuffer support, and image and signal-processing tools.