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Carolin Wolf
Simulations, like fluid dynamics, are very computationally intensive problems. Since the Lattice Boltzmann method uses a discrete grid of cells for simulating the flow, there are no dependencies between the single cells during the computation for one time step. Therefore, the computing can easily be done in parallel. During the last years, multi-CPU computers have […]
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William H. Dillon (William Hall)
It is possible to purchase, for as little as $10,000, a cluster of computers with the capability to rival the supercomputers of only a few years ago. Now, users that have little to no experience developing distributed applications or managing a cluster are in a position to do so. To allow domain scientists to effectively […]
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P. H. Hauschildt, E. Baron
AIMS: We discuss an implementation of our 3D radiative transfer (3DRT) framework with the OpenCL paradigm for general GPU computing. METHODS: We implemented the kernel for solving the 3DRT problem in Cartesian coordinates with periodic boundary conditions in the horizontal (x,y) plane, including the construction of the nearest neighbor ^* and the operator splitting step. […]
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Balazs Jako, Balazs Toth
Computer games, TV series, movies, simulators, and many other computer graphics applications use external scenes where a realistic looking terrain is a vital part of the viewing experience. Creating such terrains is a challenging task. In this paper we propose a method that generates realistic virtual terrains by simulation of hydraulic and thermal erosion on […]
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Cole Kendrick
The main goal of this project is to develop a computer program to model the rotation of a galaxy including dark matter. The computer program will be used to answer these questions: (1) How does dark matter affect rotational curves in galaxies; (2) how accurately can this be modeled; (3) what will happen when the […]
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Yongpeng Liu, Hong Zhu, Yongyan Liu, Feng Wang, Baohua Fan
Checkpointing is an effective fault tolerant technique to improve the reliability of large scale parallel computing systems. However, checkpointing causes a large number of computation nodes to store a huge amount of data into file system simultaneously. It does not only require a huge storage space to store system state, but also brings a tremendous […]
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Dietmar Wippig, Bernd Klauer
The Discrete Wavelet Transform (DWT) is applied to various signal and image processing applications. However the computation is computational expense. Therefore plenty of approaches have been proposed to accelerate the computation. Graphics processing units (GPUs) can be used as stream processor to speed up the calculation of the DWT. In this paper, we present a […]
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Mats Johansson, Oscar Winter
General-Purpose computing using Graphics Processing Units (GPGPU) has been an area of active research for many years. During 2009 and 2010 much has happened in the GPGPU research field with the release of the Open Computing Language (OpenCL) programming framework and the new NVIDIA Fermi Graphics Processing Unit (GPU) architecture. This thesis explores the hardware […]
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Songwen Pei, Wenhao Wang, Gang Wei, Baifeng Wu
Large Scale DNA sequence alignment and Kernel method in molecular biology play critical roles in bioinformatics. Both of which are successfully implemented on the brook+ platform with AMD’s GPUs. Aiming at the characters of graphical stream processors, we propose internal and external approach cooperatively to promote the performance of the two algorithms. The experiments show […]
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Rob V. van Nieuwpoort, John W. Romein
A recent development in radio astronomy is to replace traditional dishes with many small antennas. The signals are combined to form one large, virtual telescope. The enormous data streams are cross-correlated to filter out noise. This is especially challenging, since the computational demands grow quadratically with the number of data streams. Moreover, the correlator is […]
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Dietmar Wippig, Bernd Klauer
The Discrete Wavelet Transform (DWT) is used in several signal and image processing applications. Due to the computational expense various approaches have been proposed. One approach is using graphics processing units (GPUs) as stream processors to speed up the calculation of the DWT. This paper presents a GPU implementation of the translation-invariant wavelet transform computed […]
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Niklaus Berger
Partial wave analysis is a core tool in hadron spectroscopy. With the high statistics data available at facilities such as the Beijing Spectrometer III, this procedure becomes computationally very expensive. We have successfully implemented a framework for performing partial wave analysis on graphics processors. We discuss the implementation, the parallel computing frameworks employed and the […]
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