Rainer Koppler

Learn More
This paper introduces Exdasy, a user-friendly and extendable software tool for partitioning unstructured meshes and mapping mesh partitions to parallel computers. Ex-dasy was designed to meet the increasing demands to today's data distribution systems, which are posed by the variety of mesh computations, the ongoing development of distribution algorithms(More)
SUMMARY This paper presents a systematic approach to implementing fuzzy parsers. A fuzzy parser is a form of syntax analyzer that performs analysis on selected portions of its input rather than performing a detailed analysis of a complete source text. Fuzzy parsers are often components of software tools and also of program development environments that(More)
This paper motivates the usage of graphics and visualization for efficient utilization of HPF's data distribution facilities. It proposes a graphical tooltkit consisting of exploratory tools and estimation tools which allow the programmer to navigate through complex distributions and to obtain graphical ratings with respect to load distribution and(More)
On distributed-memory systems, the quality of the data distribution has a crucial impact on the eeciency of the computation. Sophisticated visualization of large in-core and out-of-core data, and steering capabilities of the debugging system sig-niicantly reduce program development cycle, especially for irregular applications. In this paper we present an(More)