high performance computing on graphics processing units: hgpu.org

According to GaBP (Gaussian Belief Propagation) algorithm, this article presents a GaBP-GPU algorithm of solving large-scale symmetric diagonally dominant sparse linear systems based on GPU. Combined with GaBP-GPU algorithm, a storage format (MCSC) is presented. We extract some diagonally dominant matrices from the University of Florida Sparse Matrix Collection as test examples. The experimental results […]

Dedispersion is a basic algorithm to reconstruct impulsive astrophysical signals. It is used in high sampling-rate radio astronomy to counteract temporal smearing by intervening interstellar medium. To counteract this smearing, the received signal train must be dedispersed for thousands of trial distances, after which the transformed signals are further analyzed. This process is expensive on […]

Publication: All accepted papers of ICIII 2014 will be published in the Journal of Industrial and Intelligent Information (ISSN:2301-3745, DOI: 10.12720/jiii), and will be indexed by Ulrich’s Periodicals Directory, Google Scholar, EBSCO, Engineering & Technology Digital Library and Electronic Journals Library Submission Deadline: 2014-03-20 Call for Paper: 1. Neural networks and Applications 2. Machine Learning […]

Submission Deadline: 2014-03-20 Publication: All accepted papers of ICSEM 2014 will be published in the International Journal of Modeling and Optimization (ISSN:2010-3697), and will be included in the Engineering & Technology Digital Library, and indexed by Electronic Journals Library ProQuest,Google Scholar, Crossref, DOAJ and EI (INSPEC, IET). Call for Papers: Information Systems Engineering IS development […]

Publication: All accepted papers of ICCCM 2014 will be published in the following journals with ISSN: * International Journal of Computer and Communication Engineering (ISSN: 2010-3743), which will be indexed by Engineering & Technology Digital Library, Google Scholar, ProQuest, and Crossref. * Journal of Advanced Management Science (ISSN:2168-0787),which will be indexed by Ulrich’s Periodicals Directory, […]

This paper presents a novel approach for real time face detection using heterogeneous computing. The algorithm uses local binary pattern (LBP) as feature vector for face detection. OpenCL is used to accelerate the code using GPU[1]. Illuminance invariance is achieved using gamma correction and Difference of Gaussian(DOG) to make the algorithm robust against varying lighting […]

A tremendous amount of work has been conducted in content-based image retrieval (CBIR) on designing efficient index structure to accelerate the retrieval process. Most of them improve the retrieval efficiency via complex index structures, and few take into account the parallel implementation of algorithm on underlying hardware. It makes the existing index structures suffer from […]

Iterative solvers for sparse linear systems often benefit from using preconditioners. While there are implementations for many iterative methods that leverage the computing power of accelerators, porting the latest developments in preconditioners to accelerators has been challenging. In this paper we develop a self-adaptive multi-elimination preconditioner for graphics processing units (GPUs). The preconditioner is based […]

This thesis focuses on the testing of WPA/WPA 2 password strength. Recently, due to progress in calculation power and technology, new factors must be taken into account when choosing a WPA/WPA2 secure password. A study regarding the security of the current deployed password is reported here. Harnessing the computational power of a single and old […]

Parallelization of scientific problems is a challenging task which has a wide application area both on distributed programming, cloud computing and recently on GPGPU. Spectral graph partitioning is a widely used technique in many fields such as image processing, scientific computing, machine learning etc. In this study we analyze spectral graph partitioning subroutines on a […]

The growing number of Boolean variables requires very efficient approaches to solve the given tasks. We explore the utilization of the GPU for fast parallel Boolean calculations in this paper. Hundreds of processor cores of the GPU offer a significant potential for improvements. Constraints in their application may restrict the reachable speedup. This paper summarizes […]

This paper focuses on evaluating the performance impact of different data layouts on the GPU-accelerated IDW interpolation. First, we redesign and improve our previous GPU implementation that was performed by exploiting the feature CUDA Dynamic Parallel (CDP). And then, we implement three versions of GPU implementations, i.e., the naive version, the tiled version, and the […]