Thomas A. Mück

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Automatic mapping of I/O intensive applications on massively parallel systems is a challenging problem of great importance. This paper proposes a novel solution to the I/O problem. First, Fort-ran language extensions are introduced that support highly eecient I/O processing. Second, we specify the appropriate compilation method that utilizes an advanced(More)
| For an increasing number of data intensive scientiic applications, parallel I/O concepts are a major performance issue. Tackling this issue , we provide an outline of an input/output system designed for highly eecient, scalable and conveniently usable parallel I/O on distributed memory systems. The main focus of this paper is the parallel I/O runtime(More)
| Based on the Cayley graph framework for the generation and application independent evaluation of multiprocessor in-terconnection topologies, an application dependent task mapping problem is addressed. In particular, we start from an inter-connection topology considered attractive from a graph theoretical point of view which is produced by an(More)
The success of object-oriented software modelling depends to a large extent on the ability to create adequate abstractions. While abstraction itself must remain an intellectual process, a modelling language can support or hinder this process by offering different kinds or dimensions of abstraction. For instance , adhering to the object-oriented paradigm UML(More)
With respect to the specific requirements of advanced OODB applications, index data structures for type hierarchies in OODBMS have to provide efficient support for multiattribute queries and have to allow index optimization for a particular query profile. We describe the multikey type index and an efficient implementation of this indexing scheme. It meets(More)