PARANUSS (Parallelverarbeitung, Numerische Simulation und Standard-Software) Teilvorhaben: Entwicklung und Standardisierung eines ingenieurwissenschaftlichen Benchmarks fuer Parallelrechner. Abschlussbericht

This project was dedicated to the development of an engineering-sciences standard benchmark for evaluation of the performance of massive parallel computers with emphasis on a wide range of applications, modularity, portability, standardization and visualization. The first part of the benchmark contains program cores, fast solution algorithms, and short programs which represent important fields of application. Using these programs and a suitable analysis program, the main performance parameters of the respective computer architecture are assessed in part two. The last part of the benchmark comprises models for evaluation of computer schemes which have not yet been implemented. (orig.)Ziel des dokumentierten Projektes war das Entwickeln eines ingenieurwissenschaftlichen Standardbenchmarks zur Leistungsbewertung massiver Parallelrechner. Dabei standen die folgenden Gesichtspunkte im Vordergrund: breites Anwendungsspektrum, Modularitaet, Portabilitaet, Standardisierung und Visualisierung. Der erste Teil des Benchmarks enthaelt Programmkerne, schnelle Loesungsalgorithmen und Kurzprogramme, die wichtige Anwendungsgebiete repraesentieren. Mit diesen Programmen und einem geeigneten Analyseprogramm werden im zweiten Teil die wesentlichen Leistungsparameter der jeweiligen Rechnerarchitektur abgeschaetzt. Der letzte Teil des Benchmarks umfasst Modelle zur Bewertung von solchen Rechnerkonzepten, deren Realisierung noch nicht abgeschlossen ist. (orig.)Available from TIB Hannover: D.Dt.F.QN1(9,18) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

Entwicklung und Bau einer besonders laermarmen Getraenkeabfuellanlage Schlussbericht. Abschlussdatum: Dezember 1982

TIB: RN 7543 (83-034) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

ARTS - Optimale Ausfuehrungsunterstuetzung fuer komplexe Anwendungen auf massiv parallelen Systemen Abschlussbericht

Available from TIB Hannover: F98B542 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

SEMPA. Software Engineering Methods for Parallel Applications in Scientific Computing Final report

Methods for the parallelization of complex software systems in scientific computing have been developed and applied to the industrial CFD"6 simulation program TfC. TfC has been parallelized according to the SPMD"7 approach based on message passing with PVM or MPI. The parallel program, ParTfC, has been evaluated on a set of hardware platforms with industrial test cases; excellent efficiency and scalability has been shown for up to 128 processors. Using the algebraic multigrid solver, AMG, which is the numeric core of TfC, as a case study, we examined to what extent new programming languages and paradigms are applicable in the domain of scientific computing. Automatic or interactive parallelism tools as well as the dataparallel programming language High Performance Fortran are applicable only to a very limited extent to TfC because of TfC's irregular data structures. In contrast, object-oriented re-design of AMG and its implementation in C++ and Java has been successful. Moreover, a resource management system for networks of workstations has been developed that permits execution of production runs of parallel programs in batch mode by dynamically assigning resources that currently are not claimed by interactive users, to parallel jobs. It thus enables users in small and medium-size enterprises to use their existing hardware infrastructure as a platform for parallel calculations. (orig.)SIGLEAvailable from TIB Hannover: F98B1718 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman