We develop an objectoriented framework for generating Internet-distributed database powered Web applications: We rely on the proven technology of standard relational databases, but our tools are designed from scratch...
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We develop an objectoriented framework for generating Internet-distributed database powered Web applications: We rely on the proven technology of standard relational databases, but our tools are designed from scratch especially towards the needs of the Web with small bandwidth connections. We use a state machine model for design and implementation of control elements for Web pages with pure HTML. Sufficient complexity within the user interface and powerful database interaction can be achieved without Java, JavaScript or Active-X, even with more than one concurrent session at once. Based on the state machine model our design language models the application functionality strictly separated from layout and presentation: This approach makes us independent from future changes to HTML and we can even give an application more than one layout without changing the functional structure, e.g. to satisfy users needs. The objectoriented structure of the design tools makes the framework extensible. With this technique a database powered Web application has been implemented successfully: A Europe-wide product marketing system for rural areas funded by the european Commission, which is currently in the pilot phase.
A new software for introducing vector analysis, MaceFields, has been developed and will be soon used as an introductory tool for teaching the basics of propagation and antennas in a continuing education course. The Ma...
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A new software for introducing vector analysis, MaceFields, has been developed and will be soon used as an introductory tool for teaching the basics of propagation and antennas in a continuing education course. The MacFields software has been designed for Macintosh computers by means of an objectorientedprogramming approach. Its aim is to illustrate the basics of the vector analysis operators, gradient, divergence and curl and their combination by allowing the student or the teacher to define fields, apply operators and visualize the results dynamically. It can be used independently or remotely controlled from other applications like HyperCard for training purposes.
Massive computing systems will be needed to maintain competitiveness in all areas of science, engineering and business, to provide both management efficiency and computing capability. From a systems management perspec...
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ISBN:
(纸本)9781605584980
Massive computing systems will be needed to maintain competitiveness in all areas of science, engineering and business, to provide both management efficiency and computing capability. From a systems management perspective, massive installations offer an efficient platform for resource sharing and service-oriented cloud computing; from a capability perspective, they allow unprecedented performance for supercomputing applications. With top supercomputing systems reaching the PetaFlop barrier, the next challenge is to devise technology to reach, and applications to take advantage of, ExaFlop performance. Multicore chips are already here but will grow in the next decade to several hundred cores. Although these chips will be used for general-purpose computing, they will be the tera-device components of future exascale *** is aware of the importance of having a well-structured supercomputing infrastructure, as well as the need to exchange experiences and know-how across the Union. Infrastructure projects such as the current DEISA (Distributed european Infrastructure for Supercomputing Applications) or the future PRACE (Partnership for Advanced Computing in Europe) aim at setting up such coordinated resources. PRACE, in particular, will create a world-class pan-european high performance computing service and infrastructure, managed as a single european entity. The service will include five superior supercomputing centers, strengthened by regional and national centers, working in collaboration through grid technologies. The BSC-CNS is the Spanish representative, one of five principal partners in the project (the others being Germany, France, UK and the Netherlands). The principal partner countries have agreed to contribute more to the PRACE budget, and to host the tier-0 machines which will form part of the distributed *** hit the power wall, the computing market is now undergoing a shaky era of dispersion, where many kinds of multicore alternat
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