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In this paper we present the Vienna Parallel Input Output System (ViPIOS), a novel approach to enhance the I/O performance of high performance applications. It is a client-server based tool combining capabilities found in parallel I/O runtime libraries and parallel le systems.
Introduction 1 Two factor8 8trongly inftuenced the re8earch in high performance computing in the la8t few year8, the 1/0 bottleneck and clu8ter 8y8tem8. Fir8tly, for many 8upercomputing application8 the limiting factor i8 not the number of available CPU8 anymore, but the bandwidth of the di8k 1/0 8y8tem. Secondly, a 8hift from the cla88ical, co8tly… (More)
Due to the shift from CPU-bound to I/O bound problems the performance of the disk I/O accesses of parallel programs is a key factor for the success of solution approaches. The Vienna Parallel Input Output System (ViPIOS)  is a clientserver based system to speed up the disk accesses for high performance programs by combining characteristics of parallel… (More)
In this paper we present the MPI-IO Interface kernel in the Vienna Parallel Input Output System (ViPIOS), which is a client-server based parallel I/O system. Compared to the already existing parallel I/O systems and libraries the concept of an independent distributed server promises to greatly enhance the usability and acceptance of the I/O system as well… (More)
For applications in laser display technology, a polygonal line scanning device based on aerodynamic hemispherical bearings is being developed in our laboratory. The rotor of the device requires precise balancing for reliable performance at rotational speeds >60 000 rpm. We estimate the necessary balancing quality from basic considerations and describe, how… (More)
In this paper we present a novel communication layer for distributed heterogenous environments typical found in the area of Grid computing. This communication layer is used as part of ViPIOS islands, an I/O module for storage and administration of large data sets.
Thomas Fuerle and Erich Schikuta Institute of Applied Computer Science and Information Systems, University of Vienna, Rathausstr. 19/4, A-1010, Vienna, Austria Email: firstname.lastname@example.org, email@example.com Abstract This paper describes the speci cation and implementation of PANNS (Parallel Arti cial Neural Network Simulator), a general… (More)