3Delight is a very fast RenderMan-compliant renderer designed to produce photorealistic images for serious production environments. Some of its features include ray tracing, global illumination, motion blur, depth of field, subdivision surfaces, programmable shaders, quality antialiasing, and antialiased multi-depth shadow maps. The API and the shading language are very similar to what is described in the RenderMan interface documentation.
The Cyrus SASL library is a generic library for easy integration of secure network authentication to any client or server application. It supports authentication via standard plaintext methods as well as CRAM-MD5 and DIGEST-MD5 shared secret methods and KERBEROS_V4 and GSSAPI Kerberos methods. The SASL protocol framework is used by SMTP, IMAP, ACAP, LDAP, and other standard protocols.
Generic Mapping Tools (GMT) is a free, public-domain collection of about 60 UNIX tools that allow users to manipulate (x,y) and (x,y,z) data sets (including filtering, trend fitting, gridding, projecting, etc.) and produce Encapsulated PostScript File (EPS) illustrations ranging from simple x-y plots through contour maps to artificially illuminated surfaces and 3-D perspective views in black and white, gray tone, hachure patterns, and 24-bit color. GMT supports 25 common map projections plus linear, log, and power scaling, and comes with support data such as coastlines, rivers, and political boundaries.
The Internet Registry Routing Daemon (IRRd) is a streamlined, stand-alone Internet Routing Registry database server that supports RIPE-181, RPSL, and RPSLng routing registry syntaxes. The IRRd package includes additional utilities, tools, and services to securely manage and maintain the database.
kdb is a debugger that is part of the linux kernel and provides a means of examining kernel memory and data structures while the system is operational. Additional commands may be easily added to format and display essential system data structures given an identifier or address of the data structure. The current command set allows complete control of kernel operations including single-stepping a processor, stopping upon execution of a specific instruction, stopping upon access (or modification) of a specific virtual memory location, stopping upon access to a register in the input-output address space, stack tracebacks for the current active task as well as for all other tasks (by process id), instruction disassembly, et. al.
MPICH is a robust and flexible implementation of the MPI (Message Passing Interface). MPI is often used with parallel or distributed computing projects. MPICH is a multi-platform, configurable system (development, execution, libraries, etc) for MPI. It can acheive parallelism using networked machines or using mulitasking on a single machine.
Octave is a high-level language, primarily intended for numerical computations. It provides a convenient command line interface for solving linear and nonlinear problems numerically, and for performing other numerical experiments. It may also be used as a batch-oriented language.
The Parallel Virtual File System is a user-space parallel file system for use on clusters of PCs (and Beowulfs in particular). It provides transparent file striping across multiple machines and includes a loadable kernel module for use with existing binaries. TCP/IP is used for data transmission, and file data is stored on existing file systems on each machine.
IRRToolSet is a set of policy analysis tools, written in C++. It's designed to run under UNIX, using Tcl/Tk for graphics. There are tools for generating router configuration files, displaying and checking routes, generating aggregations of networks, etc. This project was formerly known as the Routing Arbiter ToolSet (RAToolset), and was maintained by ISI.
The FOLK project aims to provide a single patch which incorporates as many Linux kernel projects as can be crammed in. Its goal is to allow people who are interested in experimenting with the different projects to get on with the experimenting, rather than spend time fixing clashing diffs. It also has the goal of giving some of the more obscure projects a better chance of being seen and used. It is not intended for "general use". If a given release is stable, that will be by sheer luck. These are experimental projects, of unknown quality and completeness, being thrown together in ways that the developers are unlikely to have even remotely considered.
Empire is a game that is played against human opponents over a computer network. It is possible for a game to last from a few hours to many months. While the common goal of an Empire player is to win, there is no clear-cut definition of what winning is. Players may seek to achieve whatever goals they want to achieve.
The Kent Retargettable Occam Compiler is a multi-platform Occam 2.1 compiler that is designed to allow the Occam programming language to be used on non-Transputer platforms. Extensions from a subset of the Occam 3 specification and from pi calculus have been added over time. As a result, the version of the language supported by the compiler is also sometimes referred to as Occam 2.5 or Occam-pi.
Higher Order Logic (HOL) is a programming environment in which theorems can be proved and proof tools implemented. Built-in decision procedures and theorem provers can automatically establish many simple theorems. An Oracle mechanism gives access to external programs such as SAT and BDD engines. HOL 4 is particularly suitable as a platform for implementing combinations of deduction, execution, and property checking.
VULCAN (Viscous Upwind aLgorithm for Complex flow ANalysis) offers computational fluid dynamics for subsonic speed through hypersonic turbulent reacting and non-reacting flows on a variety of serial and parallel computational platforms. The computational cost of propulsion flow analysis is reduced through the use of special turbulent wall treatments, multi-grid methods for elliptic and space marching schemes, and conditioning of the governing equations to reduce numerical stiffness. Physical modeling capabilities are improved through the inclusion of models for compressibility, Reynolds stress anisotropies, turbulent diffusivity, finite rate chemistry, and turbulence/chemistry interaction effects. VULCAN can simulate two-dimensional, three-dimensional, or axi-symmetric multi-block problems.
TAU (Tuning and Analysis Utilities) is a set of tools for analyzing the performance of C, C++, Fortran and Java programs. It collects much more information than is available through prof or gprof, the standard Unix utilities, including per-process, per-thread, and per-host information, inclusive and exclusive function times, profiling groups that allow you to organize data collection, access to hardware counters on some systems, per-class and per-instance information, the ability to separate data for each template instantiation, start/stop timers for profiling arbitrary sections of code, and support for collection of statistics on user-defined events.
The "Click" modular router project is a fast, easily-extended software router. It's designed to handle all stages of IP transactions, and includes support for packet mangling, packet scheduling, queueing, etc. It can be run standalone on most Unix OSes or as a module for the Linux or Exopc kernels.
AODV-UU (Ad-hoc On-demand Distance Vector Routing, from Uppsala University) is a routing protocol under investigation by the IETF for use in ad-hoc networks, where both end-users and routers are mobile. This implementation supports IPv6 and multicasting (with the appropriate patch) and is compliant with RFC 3561.
The NIST Implementation of the Ad-Hoc On Demand Distance Vector protocol is a kernel-level driver for the Linux 2.4.x operating system. It supports the ix86, ARM, and MIPS architectures. Ad-Hoc routing protocols support networks in which both end users and routers can move freely while retaining network connections.
The Akaroa research project is aimed at improving the credibility of results from quantitative stochastic simulation using automated sequential analysis, and speeding up such simulations using Multiple Replications In Parallel (MRIP) to harness the computing power of a network of inexpensive workstations.
Joseki is a server for publishing RDF models on the Web. Models have URLs can be accessed by queries using HTTP GET. As part of the Jena RDF toolkit, it provides a coarse-grained Web API that is based on extracting a subgraph from the published RDF. The extracted RDF can then be processed locally with the fine-grained API provided by Jena. Joseki is extensible - new query languages and new operations can be added without modifying the core system.
MP-MICH is a Multi-platform uniform MPI implementation, based on MPICH and SCI-MPICH, resulting in a high performance, consistent MPI across both ethernet and SCI networks in a hybrid environment. There is a single, standardized source tree for all platforms. It is compliant with the MPI-1 standard.
LAPACK is a linear algebra library, based on LINPACK and EISPACK, designed to provide routines for handling simultaneous equations and matrix algebra efficiently, particularly on shared memory vector processors, parallel processors, and clusters. The code is written in Fortran, and requires the BLAS (Basic Linear Algebra Subprograms) library.
The ATLAS (Automatically Tuned Linear Algebra Software) project is an ongoing research effort focusing on applying empirical techniques in order to provide portable performance. It provides C and Fortran77 interfaces to a portably efficient BLAS implementation, as well as a few routines from LAPACK.
Raster3D is a set of powerful tools for generating high quality raster images of proteins or other molecules. The core program renders spheres, triangles, cylinders, and quadric surfaces with specular highlighting, Phong shading, and shadowing. It uses an efficient software Z-buffer algorithm that is independent of any graphics hardware.
The Realtime Application Interface for Linux allows applications with strict timing constraints to be run on Linux. A real time system is able to guarantee the timing requirements of the processes under its control. RTAI provides an API and the necessary kernel modifications to accommodate such requirements.
The Storage Resource Broker is client-server middleware that provides a uniform interface for connecting to heterogeneous data resources over a network and accessing replicated data sets. It, in conjunction with the Metadata Catalog (MCAT), provides a way to access data sets and resources based on their attributes and/or logical names rather than their names or physical locations.
PACT is a self-contained set of tools which support developing and using portable programs, particularly scientific and engineering applications. By defining a single, higher level, standard programming interface, it shields application developers from the plethora of different hardware architectures and operating systems and their non-standard features.
The pl1gcc project is an attempt to create a native PL/I compiler using the GNU Compiler Collection. PL/I is a third-generation procedural language suitable for a wide range of applications including system software, graphics, simulation, text processing, Web, and business applications.
LA-MPI is an implementation of the Message Passing Interface (MPI) motivated by a growing need for fault tolerance at the software level in large high-performance computing (HPC) systems. Emphasis is placed in particular on complex HPC systems using commercial off-the-shelf components, where system-wide error rates may become unacceptable on long application runs.
HPC Challenge is a collection of benchmarks for measuring various aspects of system performance, such as flop/s, sustainable memory bandwidth, memory read/write rates, network bandwidth, and latency for parallel machines. It is designed for supercomputers, but will run on any computer with MPI-1 (Message Passing Interface) implementation and BLAS (Basic Linear Algebra Subprograms).
SUNDIALS (SUite of Nonlinear and DIfferential/ALgebraic equation Solvers) provides robust time integrators and nonlinear solvers that can easily be incorporated into existing simulation codes. It requires minimal information from the user, allow users to easily supply their own data structures underneath the solvers, and allows for easy incorporation of user-supplied linear solvers and preconditioners.
Hypre is a library of high performance preconditioners that feature parallel multigrid methods for both structured and unstructured grid problems. It is part of a project intended to develop scalable algorithms and software for solving large, sparse linear systems of equations on parallel computers.
The Multicast Dissemination Protocol (MDP) is a protocol framework and software toolkit for reliable multicasting data objects, including files and application memory blocks. A primary design goal is to provide a reliable multicast protocol approach that is suitable for reliable dissemination of data over both wireless and wired networks. It provides a well-defined toolkit and library for handling the protocol and congestion control extensions.
GENESIS (short for GEneral NEural SImulation System) is a general purpose simulation platform that was developed to support the simulation of neural systems ranging from subcellular components and biochemical reactions to complex models of single neurons, simulations of large networks, and systems-level models. It was developed as a research tool to provide a standard and flexible means for constructing structurally realistic models of biological neural systems.
CoralReef is a comprehensive software suite developed by CAIDA for collecting and analyzing data from passive Internet traffic monitors in real time or from trace files. The package also includes programming APIs for C and Perl, and applications for capture, analysis, and Web report generation.
CFITSIO is a library of C and Fortran subroutines for reading and writing data files in the FITS (Flexible Image Transport System) data format. It simplifies the task of writing software that deals with FITS files by providing an easy to use set of high-level routines that insulate the programmer from the internal complexities of the FITS file format.
The Beowulf Distributed Process Space (BProc) is set of kernel modifications, utilities, and libraries which allow a user to start processes on other machines in a Beowulf-style cluster. Remote processes started with this mechanism appear in the process table of the front end machine in a cluster. This allows remote process management using the normal UNIX process control facilities. Signals are transparently forwarded to remote processes and exit status is received using the usual wait () mechanisms.
The National Space Science Data Center's (NSSDC) Common Data Format (CDF) is a self-describing data abstraction for the storage and manipulation of multidimensional data in a platform- and discipline-independent fashion. It consists of a scientific data management package (known as the "CDF Library") that allows programmers and application developers to manage and manipulate scalar, vector, and multi-dimensional data arrays.
NRL OLSR is the NRL's implementation of the OLSR ad-hoc mobile network routing protocol, using RFC 3626 packet formats. It supports IPv4 and IPv6. Support for Ethereal and NS2 exists but may not be current. NRL's implementation is derived from INRIA's OLSR software router, which is also available.
CODEX (the Cornell Data Exchange) is a key distribution system. It is designed for applications with a moderate number of clients (tens or hundreds) requesting keys that change often but not continuously (on the scale of minutes to hours). It employs the RSA and ElGamal encryption schemes, as well as techniques such as threshold cryptography and proactive secret sharing.
The Template Numerical Toolkit (TNT) is a collection of interfaces and reference implementations of numerical objects useful for scientific computing in C++. The toolkit defines interfaces for basic data structures, such as multidimensional arrays and sparse matrices, commonly used in numerical applications. The goal of this package is to provide reusable software components that address many of the portability and maintenance problems with C++ code.
RIB is a software package for creating WWW metadata repositories. Metadata, from RIB's perspective, is information that describes reusable objects, such as software. RIB allows the user to enter metadata into a Java applet, which then sends the information to an RIB server via HTTP. The information is then stored in an SQL database, where it is automatically made available in a fully functional Web site (catalog, search page, etc). Repositories that use similar data models can use the XML processing capabilities to share information via the Internet.
Quality Objects (QuO) is a framework for providing quality of service (QoS) in network-centric distributed applications. These applications range from embedded applications to wide area network applications, including many military and commercial applications. QuO bridges the gap between the socket-level QoS being specified, researched, and provided by a number of organizations and the distributed object level where many distributed applications are best written. QuO adds QoS to CORBA and Java RMI in a manner which is appropriate for creating applications that can adapt to environments that are unpredictable or have strict resource constraints.
Stanford Exploration Project Library (SEPlib) is a software package that was developed to manipulate and process many types of geophysical data. It includes libraries for manipulating 2D and 3D data and pipe-fed command-line utilities. It has support for parallelization through MPI and OpenMP and supports connectors to other geophysical packages.
Maria is a reachability analyzer for concurrent systems that uses Algebraic System Nets (a high-level variant of Petri nets) as its modelling formalism. It is implemented as a pack of software tools that perform reachability analysis and check safety and liveness properties of distributed system models. The models can be constructed either by hand or automatically from other formalisms, such as the CCITT Specification and Description Language (SDL).
DAPL (Direct Access Provider Library) is a transport-independent, platform-independent, high-performance API for using the remote direct memory access (RDMA) capabilities of modern interconnect technologies such as InfiniBand, the Virtual Interface Architecture, and iWARP. This is the reference implementation of that specification by the DAT Collaborative who maintain the DAPL API.
Overture is an object-oriented code framework for solving partial differential equations. It provides a portable, flexible software development environment for applications that involve the simulation of physical processes in complex moving geometry. Overture is designed for solving problems on a structured grid or a collection of structured grids. In particular, it can use curvilinear grids, adaptive mesh refinement, and the composite overlapping grid method to represent problems involving complex domains with moving components.
The Paderborn University BSP-Library is a C library of communication routines. These routines allow the implementation of algorithms that are designed for the BSP (Bulk Synchronous Parallel) model. It offers functions for both message passing and remote memory access. Furthermore, some collective communication operations like broadcast and parallel prefix are also provided.
OpenScientist is an integration of open source products working together to do scientific visualization and data analysis, in particular for high energy physics (HEP). It provides a re-implementation of FreeHEP's AIDA and CERN's PAW software, graphing and data analysis software, together with a framework for combining third-party software into a single unified environment.
The GCC UPC toolset provides a compilation and execution environment for programs written in the UPC (Unified Parallel C) language. The GCC UPC compiler extends the capabilities of the GNU GCC compiler. The GCC UPC compiler is implemented as a C Language dialect translator, in a fashion similar to the implementation of the GNU Objective C compiler.
DAKOTA (Design Analysis Kit for Optimization and Terascale Applications) is a general-purpose software toolkit for performing systems analysis and design on high performance computers. It provides algorithms for design optimization, uncertainty quantification, parameter estimation, design of experiments, and sensitivity analysis, as well as a range of parallel computing and simulation interfacing services.
RMoX is an experimental/research Occam-pi/CSP-based operating system for Pentium-based PCs. It is driven by the need for reliable, scalable, and robust operating system environments. CSP provides a solid foundation for describing and reasoning about parallel systems and their interactions. The Occam-pi language is an enhanced version of Occam (based on CSP), that adds ideas from pi-calculus to provide a dynamic and flexible environment for building such concurrent systems.
The OpenFOAM (Open Field Operation and Manipulation) CFD toolbox can simulate anything from complex fluid flows involving chemical reactions, turbulence, and heat transfer, to solid dynamics, electromagnetics, and the pricing of financial options. It uses finite volume numerics to solve systems of partial differential equations ascribed on any 3D unstructured mesh of polyhedral cells. The fluid flow solvers are developed within a robust, implicit, pressure-velocity, iterative solution framework, although alternative techniques are applied to other continuum mechanics solvers.
The KOJAK (Kit for Objective Judgement and Knowledge-based Detection of Performance Bottlenecks) is a set of generic and interoperable tool components designed for the performance analysis of parallel applications. Their functionality addresses the entire analysis process including instrumentation, postprocessing of performance data, and result presentation. Particular emphasis is put on automation techniques to transform the collected data into a high-level view of performance behavior. An essential part of the software constitutes an integrated event-trace analysis environment for MPI and OpenMP applications.
RTnet is an hard real-time network protocol stack for Xenomai and RTAI (real-time Linux extensions). It makes use of standard Ethernet hardware and supports several popular NIC chip sets, including Gigabit Ethernet. Moreover, Ethernet-over-1394 support is available based on the RT-FireWire protocol stack. It implements UDP/IP, ICMP, and ARP in a deterministic way and provides a POSIX socket API to real-time user space processes and kernel modules.
Coreboot (formerly known as LinuxBIOS) is a project that aims to replace the normal BIOS with a little bit of hardware initialization and a payload. Payloads can include a compressed Linux kernel, FILO, GRUB2, OpenBIOS, Open Firmware, SmartFirmware, GNUFI (UEFI), Etherboot, ADLO (for booting Windows and OpenBSD), Plan 9, or memtest86.
GridMPI is an implementation of the MPI (Message Passing Interface) standard designed for high performance computing in the Grid. GridMPI enables unmodified MPI applications to run on cluster computers distributed across the Grid environment. It establishes a synthesized cluster environment by efficiently binding multiple cluster computers from geographically distributed sites. It enables users to seamlessly deploy their application programs from a local system to the Grid environment for processing very large data sets, where the programs can be coded and tested in a usual manner.
NRL NORM is an implementation of NACK-Oriented Reliable Multicast. The NORM protocol is designed to provide end-to-end reliable transport of bulk data objects or streams over generic IP multicast routing and forwarding services. NORM uses a selective, negative acknowledgement (NACK) mechanism for transport reliability and offers additional protocol mechanisms to conduct reliable multicast sessions with limited "a priori" coordination among senders and receivers. The protocol offers a number of features to allow different types of applications or possibly other higher level transport protocols to utilize its service in different ways. The protocol leverages the use of FEC-based repair and other IETF reliable multicast transport (RMT) building blocks in its design.
SAOImage DS9 is an astronomical imaging and data visualization application. DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps. It provides for easy communication with external analysis tasks and is highly configurable and extensible. DS9 is a stand-alone application that requires no installation or support files. It supports advanced features such as multiple frame buffers, mosaic images, tiling, blinking, geometric markers, colormap manipulation, scaling, arbitrary zoom, rotation, pan, and a variety of coordinate systems.
Lightweight Underlay Network Ad-hoc Routing (LUNAR) is a simple and robust self-configuring wireless ad-hoc routing system that creates an IP subnet illusion. It is developed as a kernel module that can be dynamically loaded in a running system. It works well in the most common ad-hoc networking situations, namely small groups of less than 10 mobile nodes that are close together. It implements a bare-bones on-demand route discovery protocol with broadcast dampening and reconfigures communications paths typically within three seconds. IP addresses are self-configured and MANET name resolution is supported. Automatic IP gatewaying is included and IP unicast and broadcast are supported.
DSR-UU is an implementation of the Dynamic Source Routing protocol. It runs in Linux (kernel 2.4/2.6) and in the ns-2 network simulator. It also compiles and runs on LinkSys WRT54G routers. DSR-UU implements a virtual network interface (dsr0). This enables your DSR network to coexist with the regular non-multihop ad hoc network at the same time.
GGobi is a visualization program for exploring high-dimensional data. It provides highly dynamic and interactive graphics such as tours, as well as familiar graphics such as the scatterplot, barchart, and parallel coordinates plots. Plots are interactive and linked with brushing and identification.
CLUTO is a software package for clustering low- and high-dimensional datasets and for analyzing the characteristics of the various clusters. CLUTO is well-suited for clustering data sets arising in many diverse application areas including information retrieval, customer purchasing transactions, web, GIS, science, and biology. CLUTO's distribution consists of both stand-alone programs and a library via which an application program can access directly the various clustering and analysis algorithms implemented in CLUTO.
The Hidden Markov Model Toolkit (HTK) is a portable toolkit for building and manipulating hidden Markov models. HTK is primarily used for speech recognition research, although it has been used for numerous other applications. HTK consists of a set of library modules and tools available in C source form. The tools provide sophisticated facilities for speech analysis, HMM training, testing, and results analysis. The software supports HMMs using both continuous density mixture Gaussians and discrete distributions, and can be used to build complex HMM systems.
The THREDDS (Thematic Realtime Environmental Distributed Data Services) project is developing middleware to bridge the gap between data providers and data users. The goal is to simplify the discovery and use of scientific data and to allow scientific publications and educational materials to reference scientific data. The mission of THREDDS is for students, educators and researchers to publish, contribute, find, and interact with data relating to the Earth system in a convenient, effective, and integrated fashion. Just as the World Wide Web and digital library technologies have simplified the process of publishing and accessing multimedia documents, THREDDS is building infrastructure needed for publishing and accessing scientific data in a similarly convenient fashion.
PHAML is a parallel program for the solution of 2D elliptic partial differential equations using low or high order finite elements, adaptive mesh refinement based on newest node bisection of triangles, and multigrid. All aspects of the method are based on the hierarchical basis functions.
Parallel Three-Dimensional Fast Fourier Transforms, dubbed P3DFFT, is a library for computing 3D FFTs using 2D (pencil) decomposition. It is written using Fortran with MPI, and is tuned to work on multiple single-CPU systems (up to 32768 of them). It is built to leverage high-performance serial 1D FFT libraries, such as FFTW or ESSL.
OpenSAML is a portable implementation of the Security Assertion Markup Language (SAML) standard for the formation and exchange of authentication, attribute, and authorization data using XML, as defined by OASIS. There are interfaces for a range of languages, including C++ and Java.
The MAD project is an implementation of the FLUTE (File Delivery over Unidirectional Transport) protocol for the unidirectional delivery of files over the Internet over a multicast network. FLUTE builds on Asyncronous Layered Coding, which itself is a combination of Layered Coding Transport (LCT), Forward Error Correction (FEC), and multiple rate congestion control elements. The project provides a number of libraries providing the networking and error-correction layers and a file transfer tool that is built on top of them.
The National Library of Medicine Insight Segmentation and Registration Toolkit (ITK) is a software system to support the Visible Human Project. Segmentation is the process of identifying and classifying data found in a digitally sampled representation. Registration is the task of aligning or developing correspondences between data. For example, in the medical environment, a CT scan may be aligned with an MRI scan in order to combine the information contained in both.
CZT is a Java framework and a suite of tools built on that framework for editing, type checking, and animating formal specifications written in the Z specification language. In addition to the ISO standard, there is some support for Z extensions, such as Object-Z, Circus and TCOZ.
CLARAty is a coupled layer architecture for robotic autonomy. CLARAty is a framework that promotes reusable robotic software. It was designed to support heterogeneous robotic platforms and integrate advanced robotic capabilities from multiple institutions. Consequently, its design had to be portable, modular, flexible, and extendible.
Diffusion Tensor Imaging (DTI) is a magnetic resonance imaging method that can be used to measure local information about the structure of white matter pathways within the human brain. Combining DTI data with the computational methods of MR tractography, neuroscientists can estimate the locations and sizes of nerve bundles (white matter pathways) that course through the human brain. DTI-Query allows neuroscientists to place and interactively manipulate box-shaped regions (or volumes of interest) to selectively display pathways that pass through specc anatomical areas.
PARAMESH is a package of Fortran 90 subroutines designed to provide an application developer with an easy route to extend an existing serial code that uses a logically Cartesian structured mesh into a parallel code with adaptive mesh refinement (AMR). Alternatively, in its simplest use, and with minimal effort, it can operate as a domain decomposition tool for users who want to parallelize their serial codes, but who do not wish to use adaptivity.
NUTSS (NAT, URIs, Tunnels, SIP, and STUNT) is a network architecture that combines data-decoupled signaling and data-coupled signaling to establish Internet flows. The goal is to enable intermediary systems like firewalls and NATs, which can intercept the signals, to discover the intent of a network connection. The intermediaries can then facilitate the connection setup or enforce other policies.
memcached is a high-performance distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic Web applications by alleviating database load. The memcached server and clients work together to implement one global cache across as many machines as you have.
DSpace is a digital asset management system that enables services for access, provision, stewardship, and reuse of digital assets with a focus on educational and research materials. It provides mechanisms for handling multiple policies and practices for redistribution, and supports a range of metadata types for digital formats.
pfstools is a set of command line programs (and one GUI program) for reading, writing, manipulating, and viewing high-dynamic range (HDR) images and video frames. All programs in the package exchange data using Unix pipes and a simple generic HDR image format (pfs). It is meant to be similar to the netpbm package for low-dynamic range images. Note that pfs in not just another format for storing HDR images. It is more an attempt to integrate the existing HDR image formats by providing a simple data format that can be used to exchange data between applications.
SIMH is a historical computer simulation system. It consists of simulators for approximately 20 different computers, all written around a common user interface package and set of supporting libraries. SIMH can be used to simulate any computer system for which sufficient detail is available, but the focus to date has been on simulating computer systems of historic interest.
MBDyn features the integrated multidisciplinary analysis of multi-body, multi-physics systems, including nonlinear mechanics of rigid and flexible constrained bodies, smart materials, electric networks, active control, hydraulic networks, and essential fixed-wing and rotorcraft aerodynamics. It allows you to simulate the behavior of heterogeneous mechanical, aero-servo-elastic systems based on first principles equations. It is being actively developed and used in the aerospace and automotive fields for dynamics analysis and simulation of complex systems. The extension of available analysis domains to new models, and new analysis domains, is planned and problem-driven.
The NCBI C++ Toolkit provides portable libraries and applications for assisting genetic science. These include libraries for networking, SQL and BerkeleyDB access, CGI and HTML handling, ASN.1 and XML handling, sequence alignment engines, sequence retrieval engines, BLAST database engines, FLTK and OpenGL graphics toolkits, and basic system utilities.
OpenHTMM is an implementation specifically designed to facilitate research into Hidden Topic Markov Models methods. Hidden Topic Markov Models (HTMM) is a method of analyzing a docyment by imposing a temporal Markov structure on the document. In this way, it is able to account for shifting topics within a document. In so doing, it provides a topic segmentation within the document and also seems to effectively distinguish among multiple senses that the same word may have in different contexts within the same document.
The TianoCore EFI Toolkit is a set of tools that support rapid porting and development of EFI applications, and promote a uniform pre-boot environment on 32- and 64-bit based platforms. The components are released as reference source code. Some components are meant to be stand alone and run on UEFI/EFI compliant systems and some components will require running on the EFI shell.
The main goal of the Cognitive Vision project is to improve the results of artificial intelligence. The current scope is to equip the abilities of the AIBO (robot dog of the Sony) to explore its environment and to recognize the local position (e.g. navigation in a room). The first trial is to use and develop image processing methods with a single webcam and to apply these techniques with AIBO.
ESMF is software for building and coupling weather, climate, and related models. The premise is that complicated applications should be broken up into smaller pieces, or components. A component is a unit of software composition that has a coherent function, and a standard calling interface and behavior. Components can be assembled to create multiple applications, and different implementations of a component may be available.
Parallel Performance Wizard (PPW) is a performance analysis tool designed for UPC, MPI, and SHMEM programs. It features an easy-to-use interface and tight integration with GAS programming models via the GASP interface. It is known to work on many platforms. This project is part of a study of existing and emerging performance analysis theory and tools, current and future HPC architectures, and usability and user productivity preferences and methods, along with various programming models.
MPI Parallel Environment (MPE) is a software package for MPI (Message Passing Interface) programmers. It provides users with a number of useful tools for their MPI programs such as a set of profiling libraries that collect information about the behavior of MPI programs, graphical trace file analyzers, serializers, type checkers, collective operations validators, etc.
Electron Gamma Shower (EGS) is a general purpose package for the Monte Carlo simulation of the coupled transport of electrons and photons in an arbitrary geometry for particles with energies from a few keV up to several TeV. Simulations can be performed in arbitrarily complex physical geometries, and a wide range of physical processes are modeled.
GridWay is a workload manager that performs job execution management and resource brokering on a grid consisting of distinct computing platforms managed by Globus services. It enables large- scale, reliable, and efficient sharing of computing resources managed by different Local Resource Management systems within a single organization (enterprise grid) or scattered across several administrative domains (partner or supply-chain grid).
UDUNITS, the Unidata units C library, supports conversion of unit specifications between formatted and binary forms, arithmetic manipulation of unit specifications, and conversion of values between compatible scales of measurement. As of version 2, the unit database is encoded using human-readable XML.
OpendTect is a seismic interpretation software system. It enables you to process, visualize, and interpret multi-volume seismic data using attributes and modern visiualization techniques such as stereo viewing and volume rendering. Visualization elements can be moved freely through data space to interactively analyze data from stored volumes, or data calculated on-the-fly. For more advanced work, commercial plugins are available.
The MPI-IO Test is built on top of MPI's I/O calls and is used to gather timing information for reading from and writing to file(s) using a variety of I/O profiles. A data aggregation capability is available and the user can pass down MPI-IO, ROMIO, and file system specific hints. The MPI-IO Test can be used for performance benchmarking and, in some cases, to diagnose problems with file systems or I/O networks.
The IOR software is used for benchmarking parallel file systems using POSIX, MPIIO, or HDF5 interfaces. It can be used for testing the performance of parallel file systems using various interfaces and access patterns. IOR uses MPI for process synchronization. It also includes scripts for simulating the I/O behavior of a number of parallel applications.
Shibboleth is a standards-based middleware software package providing Web single-sign-on across or within organizational boundaries. It implements standards such as OASIS' SAML to provide a federated single-sign-on and attribute exchange framework. It also provides extended privacy functionality, allowing the browser user and their home site to control the attributes released to each application.
Mondrian is a general purpose statistical data visualization system. All plots in Mondrian are fully linked and offer various interactions and queries. Any case selected in a plot is highlighted in all other plots. Currently implemented plots include mosaic plot, scatter plots and SPLOM, maps, bar charts, histograms, missing value plots, parallel coordinates/boxplots, and y by x boxplots.
The Feature Data Objects API provides a generic, command-based interface to a number of back-end data source technologies for storing, retrieving, updating, and analyzing GIS (Geographic Information System) data. A provider is a specific back-end implementation of the FDO API that provides access to data stored in a particular data source technology.
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.
The Interactive Spectral Interpretation System (ISIS) is designed to facilitate the interpretation and analysis of high resolution X-ray spectra. It is being developed as a programmable, interactive tool for studying the physics of X-ray spectrum formation, supporting measurement and identification of spectral features and interaction with a database of atomic structure parameters and plasma emission models.
SLIRP is a vectorizing code generator aimed primarily at simplifying the process of creating modules for the S-Lang scripting language. It supports making C, C++, and Fortran code callable directly from the S-Lang interpreter and can automatically vectorize functions to take advantage of the abilities of S-Lang. SLIRP can also generate parallelizable wrappers for OpenMP-aware compilers.
Glulxe is an interpreted implementation of the Glulx portable Interactive Fiction VM, like the Z-machine but using the Glk API. Unlike the Z-machine, it uses 32-bit data and addresses, so it can handle game files up to four gigabytes long. Also unlike the Z-machine, it has native support for Glk I/O, so game files can use any capability Glk provides. However, like the Z-machine, you can write games in the Inform language and compile them to Glulx game files.
iRODS (integrated Rule-Oriented Data Systems) is a second generation data grid system providing a unified view and seamless access to distributed digital objects across a wide area network. It is an adaptive middleware data grid that operates by means of user-supplied rules and a Rule Engine which interprets the rules to decide how the system is to respond to various requests and conditions.
GridShib is a glue layer that transparently binds a grid service provider such as the Globus Toolkit to a role-based authentication and access control system such as Shibboleth, so as to provide fine-grained access controls to members of virtual and physical organizations within a grid without having to distribute and synchronize information about individual users between those organizations.
The CFD General Notation System (CGNS) provides a general, portable, and extensible standard for the storage and retrieval of computational fluid dynamics (CFD) analysis data. CGNS is designed to facilitate the exchange of data between sites and applications, and to help stabilize the archiving of aerodynamic data.
GATE is a software package dedicated to numerical simulations in medical imaging and radiotherapy. It supports simulations of Emission Tomography (Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT)), Computed Tomography (CT), and Radiotherapy experiments. It makes it easy to use existing Monte Carlo simulation packages according to the requirements of a simulation. It allows accurate description of time-dependent phenomena such as source or detector movement and source decay kinetics. It includes well-validated physics models, geometry modeling tools accommodating complex scanner geometries, models for detector electronic response, and efficient visualization utilities. Modelling of CT scans and calculation of dose can also be performed.
The gLite distribution is an integrated set of components designed to enable resource sharing. In other words, this is middleware for building a grid. The gLite middleware is produced by the EGEE project. The distribution model is to construct different services ("node-types") from these components and then ensure easy installation and configuration on the chosen platforms.
dCache is a distributed storage solution. It organizes storage across computers so the combined storage can be used without the end-users being aware of precisely which computer stores their data; end-users simply see a large amount of storage. Because end-users need not know on which computer their data is stored, their data can be migrated from one computer to another without any interruption of service. This allows dCache storage computers to be taken out of service or additional machines (with additional storage) to be added without interrupting the service the end-users enjoy.
OpenMKS is a tool for searching and navigating multimedia collections of images, video, 3D models, and textual descriptions. It allows you to semantically integrate content from various sources and then expose the result using standards so it can be explored by users through their Web browsers or by other software applications over the Web as a servlet or Web Service.
The SensorWeb project aims at developing the Open SensorWeb Architecture (OSWA) and implementing a standards-compliant platform and middleware for integration of sensor networks with emerging distributed computing platforms such as Grids. It confirms to the Web Services standard defined by the W3C, and the SensorML (Sensor Model Language) standard defined by the OpenGeospatial Consortium.
Scalasca is a toolset that can be used to analyze the performance behavior of parallel applications and to identify opportunities for optimization. It supports an incremental performance-analysis procedure that integrates runtime summaries with in-depth studies of concurrent behavior via event tracing, adopting a strategy of successively refined measurement configurations.
Crossbones is used to generate 3D skeletons based on Total Station data, or similar digital data sets from optical surveys, created using the new X-Bones recording methodology. It is intended as a tool for for rapid surveying and visualization of dense skeletal assemblages, such as in mass graves or cemeteries.
IRAF is the Image Reduction and Analysis Facility, a general purpose software system for the reduction and analysis of scientific data. IRAF includes a selection of programs for general image processing and graphics applications, plus a large number of programs for the reduction and analysis of optical astronomy data within the NOAO package. External or layered packages are also available for the analysis of HST, XRAY, and EUV data. IRAF provides a programming environment which includes the Command Language script facility, the IMFORT Fortran programming interface, and the SPP/VOS programming environment in which the portable IRAF system is written.
BEAM is a toolbox and development platform for viewing, analysing, and processing of remote sensing raster data. Originally developed to facilitate the utilisation of image data from Envisat's optical instruments, BEAM now supports a growing number of other raster data formats such as GeoTIFF and NetCDF as well as data formats of other EO sensors such as MODIS, AVHRR, AVNIR, PRISM and CHRIS/Proba. Various data and algorithms are supported by dedicated extension plug-ins. It includes VISAT, an intuitive desktop application, a set of scientific tools running either from the command line or invoked by VISAT, and a rich Java API for the development of new remote sensing applications and BEAM extension plug-ins.
HOPSPACK solves derivative-free optimization problems in a C++ software framework. The framework enables parallel operation using MPI (for distributed machine architectures) and multithreading (for single machines with multiple processors or cores). Optimization problems can be very general: functions can be noisy, nonsmooth, and nonconvex, linear and nonlinear constraints are supported, and variables may be continuous or integer-valued.
The Image-Guided Surgery Toolkit is a high-level, component-based framework that provides common functionality for image-guided surgery applications. The framework is a set of high-level components integrated with low-level open source software libraries and application programming interfaces (API) from hardware vendors. IGSTK provides, among other things, the ability to read and display medical images, an interface to common tracking hardware, and GUI and visualization capabilities.
Fuseki is a server that provides access to the SPARQL 1.1 standard. SPARQL is a W3C query language for RDF data on the Semantic Web. It forms a part of the Jena semantic web project. Fuseki provides the REST-style SPARQL HTTP Update, and SPARQL Query and SPARQL Update using the SPARQL protocol over HTTP. The SPARQL standards are works-in-progress by the SPARQL working group and while the general designs are stable, details may change. Fuseki will track the draft standards.
Pioneer is a space adventure game set in the Milky Way galaxy at the turn of the 31st century. The game is open-ended, and you are free to explore the millions of star systems in the game. You can land on planets, slingshot past gas giants, and burn yourself to a crisp flying between binary star systems. Pioneer has a sneaking resemblance to Frontier: Elite 2.
The Integrated Data Viewer (IDV) is a framework for visualizing and analyzing geoscience data. It includes a Java-based software library and applications made from that software. It uses the VisAD library for data and display models as well as other Java utility packages. It brings together the ability to display and work with satellite imagery, gridded data (primarily from model output), and surface, upper air, and radar data within a unified interface. The IDV "reference application" provides many of the standard 2-D data displays that other Unidata packages (e.g. GEMPAK and McIDAS) provide. It also provides 3-D views of the atmosphere and allows users to interactively slice, dice, and probe the data to create cross-sections, profiles, animations, and value read-outs of multi-dimensional data sets. Computation and display of built-in and user-supplied formula-based derived quantities is supported as well.
Emergent is a neural network simulator with a built-in scripting language which allows for the creation and analysis of complex, sophisticated models of the brain in the world. Networks and all of their state variables are visually inspected in 3D, allowing quick "visual regression" of network dynamics and robot behavior. Emergent is a direct descendant of the PDP and PDP++ neural network packages.
GammaMOO is a fork of the LambdaMOO server with numerous cleaned-up patches and modern MOO functionality. This currently includes multicore support, object caching and other acceleration features, enhanced file I/O, UTF support, new built-in data types, and stability improvements with 64-bit support in progress.
ScalaBLAST is a high-performance multiprocessor implementation of the NCBI BLAST library. It supports all 5 primary program types (blastn, blastp, tblastn, tblastx, and blastx) and several output formats (pairwise, tabular, and XML). It will run on most multiprocessor systems which have MPI installed, and can run over a wide variety of interconnects, including infiniband, quadrics, and ethernet. It is designed to run a large number of queries against either large or small databases. It parallelizes the BLAST calculations by dynamically scheduling them across processors using a fault-resilient scheme.
astroPluto is modular Godunov-type code intended mainly for astrophysical applications and high Mach number flows in multiple spatial dimensions. The code embeds different hydrodynamic modules and multiple algorithms to solve the equations describing Newtonian, relativistic, MHD, or relativistic MHD fluids in Cartesian or curvilinear coordinates.
Protégé provides a suite of tools to construct domain models and knowledge-based applications with ontologies. At its core, Protégé implements a rich set of knowledge-modeling structures and actions which support the creation, visualization, and manipulation of ontologies in various representation formats. It can be customized to provide domain-friendly support for creating knowledge models and entering data, and can be extended by way of a plugin architecture and a Java-based API for building knowledge-based tools and applications.
LDPC-codes is a collection of programs and modules intended to support research and education concerning Low Density Parity Check (LDPC) codes. The decoding algorithm for LDPC codes is related to that used for Turbo codes, and to probabilistic inference methods used in other fields. Variations on LDPC and Turbo codes are currently the best practical codes known, in terms of their ability to transmit data at rates approaching channel capacity with very low error probability.
FeatureC++ is a C++ language extension that supports Feature-Oriented Programming (FOP). FOP studies feature modularity in program families. The idea of FOP is to build software by composing features. Features are basic building blocks that satisfy intuitive user-formulated requirements on the software system. Features refine other features incrementally. This step-wise refinement leads to a layered stack of features. Mixin Layers are one appropriate technique for implementing features.
h5tools provides third-party tools for working with data where the underlying storage object is HDF5. The toolkit currently has two utilities in it: The HDF5 NeXus writer API is a set of functions which allows writing data in the NeXus data format, using only HDF5 function calls. H5merge will merge any two HDF5 or NetCDF4 files.
The Common Pipeline Library provides a highly robust set of functions for manipulating signals and images. It is primarily intended for the building of VLT instrument pipelines, but is also useful for generic data handling. It includes a number of useful low-level data types, medium-level data access methods, standard implementations of commonly-used signal processing and data reduction tasks, and dynamic loading of "recipes" for data processing.
WCSLIB is a C library, supplied with a full set of Fortran wrappers, which implements the "World Coordinate System" (WCS) standard in FITS (Flexible Image Transport System). It also includes a PGPLOT-based routine, PGSBOX, for drawing general curvilinear coordinate graticules, and a number of utility programs. The FITS "World Coordinate System" (WCS) convention defines keywords and usage which provide descriptions of astronomical coordinate systems in a FITS image header.
The Interplanetary Overlay Network (ION) software distribution is an implementation of Delay-Tolerant Networking (DTN) architecture as described in Internet RFC 4838. It includes implementations of the DTN Bundle Protocol, the Licklider Transmission Protocol, and two CCSDS application protocols that have been adapted to run over the BP/LTP stack: the CCSDS File Delivery Protocol and Asynchronous Message Service.
This page currently points to a German project to reimplement Aspect C/C++. The Aspect C compiler originally pointed to no longer exists and the website was removed by the University of Toronto.
@djzort: Again, I'll second all your points as those are some excellent ideas. There needs to be something to handle freak circumstances, though. Fortunately rare, I've encountered some bizarre situations over time and maintainers who are... interesting to say the least. These are the cases where no rulebook will help. The site admins do a wonderful job, but really I'd argue that the social aspect of this site is under-utilized in these cases. It would be immensely valuable to be able to discuss - in friendly, co-operative, non-inflamatory ways - how to approach such situations.