open source, peer-to-peer software that functions as a persistent access preservation system. Information is delivered via the web, and stored using a sophisticated but easy to use caching system.
a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids. It is based on a hierarchical design targeted at federations of cluster
Parallel I/O continues to be a topic of active development. Recent years have seen the creation of many new options. Even with these new choices, certain factors remain constant. Parallel applications need a fast I/O subsystem.
a low-effort solution to the problem of running memory-hungry programs on memory-starved computers. The parts of the program that don't fit in local RAM are sent over a high-speed network to remote RAM, thereby bypassing the slow disk altogether.
a popular version control system designed to handle very large projects with speed and efficiency; it is used mainly for various open source projects, most notably the Linux kernel.
SmartFrog is a powerful and flexible Java-based software framework for configuring, deploying and managing distributed software systems.
SmartFrog helps you to encapsulate and manage systems so they are easy to configure and reconfigure, and so that that they can be automatically installed, started and shut down. It provides orchestration capabilities so that subsystems can be started (and stopped) in the right order. It also helps you to detect and recover from failures.
Such systems typically have multiple software components running across a network of computing resources, where the components must work together to deliver the functionality of the system as a whole. It's critical that the right components are running in the right places, that the components are individually and collectively correctly configured, and that they are correctly combined to create the complete system. This profile fits many of the services and applications that run on today's computing infrastructures.
SmartFrog consists of:
A Language for defining configurations, providing powerful system modelling capabilities and an expressive notation for describing system configurations
A secure, distributed Runtime System for deploying software components and managing running software systems
A Library of SmartFrog Components that implement the SmartFrog component model and provide a wide range of services and functionality
Die Roblet®-Technik ist eine in Java™ implementierte Softwareschicht zwischen Anwendung und Übertragungsnetzwerk. Ziel ist, von jeglichen Hardware- und Netzwerkaspekten verteilter Systeme zu abstrahieren, um die Komplexität bei der Entwicklung verteilter Anwendungen signifikant zu reduzieren. Um dieses Ziel erreichen zu können, bietet die Roblet®-Technik Verteilungsfreiheit bei der Zuordnung von Funktionalität, Technikvereinheitlichung für die verteilte Anwendung und Netzwerktransparenz inklusive Datensicherheit.
The Internet Communications Engine (Ice) is a modern object-oriented middleware with support for C++, .NET, Java, Python, Objective-C, Ruby, and PHP. Ice is used in many mission-critical projects by companies all over the world. Ice is easy to learn, yet provides a powerful network infrastructure and vast array of features for demanding technical applications. Ice is free software, available with full source, and released under the terms of GNU General Public License (GPL). Commercial licenses are available for customers who wish to use Ice for closed-source software.
The Apache Hadoop project develops open-source software for reliable, scalable, distributed computing, including:
* Hadoop Core, our flagship sub-project, provides a distributed filesystem (HDFS) and support for the MapReduce distributed computing framework.
* HBase builds on Hadoop Core to provide a scalable, distributed database.
* Pig is a high-level data-flow language and execution framework for parallel computation. It is built on top of Hadoop Core.
* ZooKeeper is a highly available and reliable coordination system. Distributed applications use ZooKeeper to store and mediate updates for critical shared state.
* Hive is a data warehouse infrastructure built on Hadoop Core that provides data summarization, adhoc querying and analysis of datasets.
The Rapide™ Language effort focuses on developing a new technology for building large-scale, distributed multi-language systems. This technology is based upon a new generation of computer languages, called Executable Architecture Definition Languages (EADLs), and an innovative toolset supporting the use of EADLs in evolutionary development and rigorous analysis of large-scale systems.
The "International Journal of Critical Computer-Based Systems" (IJCCBS) is a quarterly research journal by Inderscience Publishers. It focuses on engineering and verification of complex computer-based systems (where complex means large, distributed and heterogeneous) in critical applications, with special emphasis on model-based approaches and industrial case-studies. Critical computer-based systems include real-time control, fly/brake-by-wire, on-line transactional and web servers, biomedical apparels, networked devices for telecommunications, environmental monitoring, infrastructure protection, etc.
JumboMem provides a low-effort solution to the problem of running memory-hungry programs on memory-starved computers. The JumboMem software gives programs access to memory spread across multiple computers, providing the illusion that all of the memory resides within a single computer. When a program exceeds the memory in one computer, it automatically spills over into the memory of the next computer.
UNICORE (Uniform Interface to Computing Resources) offers a ready-to-run Grid system including client and server software. UNICORE makes distributed computing and data resources available in a seamless and secure way in intranets and the internet.
Grubby Lives!
Search is part of the fundamental infrastructure of the Internet. And, it is currently broken.
Why is it broken? It is broken for the same reason that proprietary software is always broken: lack of freedom, lack of community, lack of accountability, lack of transparency. Here, we will start to change all that.
Fedora open source software gives organizations a flexible service-oriented architecture for managing and delivering their digital content. At its core is a powerful digital object model that supports multiple views of each digital object and the relationships among digital objects. Digital objects can encapsulate locally-managed content or make reference to remote content. Dynamic views are possible by associating web services with objects. Digital objects exist within a repository architecture that supports a variety of management functions. All functions of Fedora, both at the object and repository level, are exposed as web services. These functions can be protected with fine-grained access control policies.
F. Botelho, F. Ramos, D. Kreutz, and A. Bessani. Proceedings of the 2013 Second European Workshop on Software Defined
Networks, page 38--43. Washington, DC, USA, IEEE Computer Society, (2013)
L. Zhu, M. Staples, and V. Tosic. 12th International IEEE Enterprise Distributed Object Computing Conference, 2008. EDOC '08, page 24--30. IEEE, (September 2008)