high performance computing on graphics processing units: hgpu.org

2014-05-20 All accepted papers will be published in the volume of International Journal of Computer Theory and Engineering (IJCTE), and will be included in the Electronic Journals Library, EBSCO, Engineering & Technology Digital Library, Google Scholar, INSPEC, Ulrich’s Periodicals Directory, Crossref, ProQuest, WorldCat, and EI (INSPEC, IET). Analog and Mixed-Signal IC Design and Testing RF […]

The inability to predict lasting languages and architectures led us to develop OCCA, a C++ library focused on host-device interaction. Using run-time compilation and macro expansions, the result is a novel single kernel language that expands to multiple threading languages. Currently, OCCA supports device kernel expansions for the OpenMP, OpenCL, and CUDA platforms. Computational results […]

This paper provides a novel framework for accelerating the solution of the pairwise DNA sequence alignment problem using CUDA parallel paradigm available on the NVIDIA GPU. The main idea is to implement a new algorithm that assigns different nucleotide weights using GPU architectures then merge the subsequences of match using CPU to get the optimum […]

The whitepaper reports our investigation into the porting, optimization and subsequent performance of the astrophysics software package GADGET, on the Intel Xeon Phi. The GADGET code is intended for cosmological N-body/SPH simulations to solve a wide range of astrophysical tasks. The test cases within the project were simulations of galaxy systems. A performance analysis of […]

Floating point precision and performance and the ratio of floating point units to integer processing elements on a graphics processing unit accelerator all continue to present complex tradeoffs for optimising core utilisation on modern devices. We investigate various hybrid CPU and GPU combinations using a range of different GPU models occupying different points in this […]

Several algorithms have been proposed during the past years to solve the ray-triangle intersection test. In this paper we collect the most prominent solutions and describe how to parallelize them on modern programmable graphics processing units (GPUs) by means of NVIDIA CUDA. This paper also provides a comprehensive performance analysis based on several optional features […]

Analyzing how species are distributed on the Earth has been one of the fundamental questions in the intersections of environmental sciences, geosciences and biological sciences. With world-wide data contributions, more than 375 million species occurrence records for nearly 1.5 million species have been deposited to the Global Biodiversity Information Facility (GBIF) data portal. The sheer […]

2014-05-01 All ICKET 2014 papers will be published in International Journal of Information and Education Technology (ISSN: 2010-3689), and all papers will be indexed by Engineering & Technology Digital Library, Google Scholar, Crossref and ProQuest. Information Technology and Applications Augmented and Virtual Reality Computer Human Interaction Cyber Security;Data Structure and Algorithm Distributed and Parallel Computing […]

Multiple sequence alignment is a crucial task in a number of biological analyses like secondary structure prediction, domain searching, phylogeny, etc. MSAProbs is currently the most accurate alignment algorithm, but its effectiveness is obtained at the expense of computational time. In the paper we present QuickProbs, the variant of MSAProbs customised for graphics processors. We […]

Scheduling applications tasks across heterogeneous clusters is a growing problem, particularly when new upgraded components are added to a parallel computing system that may have originally been homogeneous. We describe how automatic and just-in-time source code generation techniques can be used to make the best parallel decomposition for whatever resource is available in a heterogeneous […]

In this thesis, I investigate computational questions in Markov chain Monte Carlo (MCMC). I am investigating one new MCMC method called the stretch move ensemble sampler [3]. I have looked at the performance of this algorithm, in terms of acceptance rates, autocorrelation time and compute performance. The thesis describes a parallel implementation of the algorithm […]

GPGPU (general purpose computing on graphics processing units) programming is one interesting way to increase performance; unfortunately it is not easily done, because extensive knowledge of the GPU’s architecture is required to write programs that are faster than CPU programs. Obsidian is an embedded domain specific language for writing GPGPU kernels, which tries to make […]