Object-oriented descriptions are gaining more and more importance in the high-level specification of hardware/software systems. Hiding the complexity from the developer is one of the key tasks in order to master the complexity of todays systems. With the high grade of abstraction necessary on the system level the automatic partitioning of a system is a difficult problem. In this paper we theref...

Softwares ability to adapt at run-time to changing user needs, system intrusions or faults, changing operational environment, and resource variability has been proposed as a means to cope with the complexity of todays softwareintensive systems. Such self-adaptive systems can configure and reconfigure themselves, augment their functionality, continually optimise themselves, protect themselves, a...

Traditional collaborative work environments are often proprietary systems. However, the demands of todays e-worker are such that they use their own tools and services and collaborate across company boundaries making highly integrated solutions less feasible. Service oriented computing provides an obvious solution here, in providing mechanisms to loosely integrate many tools and services. In thi...

It is common sense that security, privacy, mobility and quality-of-service are the vital parts of future Internet architectures. Nevertheless these aspects are still well separated fields of research resulting in a complex and highly redundant protocol stack within todays communication. Contrary to this our Future Internet design combines these requirements in a integrated and generalized appro...

We present a parallel Preconditioned BiConjugate Gradient Stabilized(BICGstab) solver for the Poisson problem. Given a real, nosymmetric and positive definite coefficient matrix , the parallized Preconditioned BICGstab -solver is able to find a solution for that system by exploiting the massive compute power of todays GPUs.Comparing sequential CPU implementations and that algorithm.we achieve a...

The design processes of todays more and more complex automation systems require computer-based support to maintain their manageability. As a base for that, the authors introduce a holistic design approach for these systems. Requirements on the system to be designed are represented by an extended feature model which serves as consistent requirements model during the entire design process. A gram...

Direct networks have become a popular way to interconnect processing nodes of todays larger commercial and research multiprocessors. The design of such direct networks is important, since it has a large eeect on the performance, cost, and the scalability of the system. The behavior of a direct network is determined primarily by how it does switching, routing and ow-control. This survey article ...

While standard processors achieve supercomputer performance , a performance gap exists between the interconnect of MPP's and COTS. Standard solutions like Ethernet can not keep up with the demand for high speed communication of todays powerful CPU's. Hence, high speed interconnects have an important impact on a cluster's performance. While standard solutions for processing nodes exist, communic...

Within the beginning of the Internet there was always a need for an automatic browsing its resources for many purposes like: indexing, cataloguing, validating, monitoring, etc. Because of a todays large volume of the World Wide Web the term Internet is often wrongly identified with the single HTTP protocol service. The process of browsing the World Wide Web in automated manner is called crawlin...

In this article we present a communication language and a design concept for a diagnosis agent. The communication language is divided in two parts. One part contains primitives necessary to control and query the agent. The other provides constructs for formulating the structure and behavior of systems to be diagnosed, and for observations determining the current state of the system. Additionall...