Posts
Dec, 25
Bioinformatics Sequence Comparisons on Manycore Processors
Searching similarities between sequences is a fundamental operation in bioinformatics, providing insight in biological functions as well as tools for high-throughput data. There is a need to have algorithms able to process efficiently billions of sequences. To look for approximate similarities, a common heuristic is to consider short words that appear exactly in both sequences, […]
Dec, 23
Password Cracking in the Cloud
Cloud computing is a great resource for applications that require computing capacity for a short time but do not need investing in fixed capital for long term. As a result, it can be used for lot of attacks such as cracking passwords, keys or other forms of brute force attacks that are computationally expensive but […]
Dec, 23
Employing GPU Accelerators for Efficient Enforcement of Data Integrity in Outsourced Data
Cloud computing provides on-demand webbased software, middleware, and computing resources. It is a service-oriented model and one of its service is Data as a Service (DaaS), also known as Outsourced Database (ODB) model. Although DaaS solves the problem of storing terabytes of data, the security of the data is a major concern for all the […]
Dec, 23
Toward GPU-accelerated Traffic Simulation and Its Real-Time Challenge
Traffic simulation is a growing domain of computational physics. Many life and industrial applications would benefit from traffic simulation to establish reliable transportation systems. A core challenge of this science research, however, is its unbounded scale of computation. This paper explores an advantage of using the graphics processing unit (GPU) for this computational challenge. We […]
Dec, 23
Coulomb, Landau and Maximally Abelian Gauge Fixing in Lattice QCD with Multi-GPUs
A lattice gauge theory framework for simulations on graphic processing units (GPUs) using NVIDIA’s CUDA is presented. The code comprises template classes that take care of an optimal data pattern to ensure coalesced reading from device memory to achieve maximum performance. In this work we concentrate on applications for lattice gauge fixing in 3+1 dimensional […]
Dec, 23
Implementation of Motion Estimation Based on Heterogeneous Parallel Computing System with OpenCL
Heterogeneous computing system increases the performance of parallel computing in many domain of general purpose computing with CPU, GPU and other accelerators. Open Computing Language (OpenCL) is the first open, royaltyfree standard for heterogenous computing on multi hardware platforms. In this paper, we propose a parallel Motion Estimation (ME) algorithm implemented using OpenCL and present […]
Dec, 21
Multicore and GPU Programming Models, Languages and Compilers Workshop, PLC 2013
Co-located with 27th IEEE International Parallel & Distributed Processing Symposium (IPDPS 2013). his workshop aims to bring the programming community together to explore and discuss various options to make programming heterogeneous systems less challenging and more interesting. The workshop seeks to explore programming methodologies in the form of directive-based approaches, language extensions, novel tools and […]
Dec, 20
KFusion: Obtaining Modularity and Performance with Regards to General Purpose GPU Computing and Co-processors
Concurrency has recently come to the forefront of computing as multi-core processors become more and more common. General purpose graphics processing unit computing brings with them new language support for dealing with co-processor environments such as OpenCL and CUDA. Programming language support for multi-core architectures introduces a fundamentally new mechanism for modularity – a kernel. […]
Dec, 20
A Parallelized Algorithm for Hyperspectral Biometrics
The parallelized algorithm for hyperspectral biometrics uses the processing power of a GPU (Graphical Processing Unit) to compare hyperspectral images of people’s faces. The feature extraction algorithm first retrieves uniquely identifiable features from raw hyperspectral data from 64 bands and creates both a database and individual target files. Using these files, the comparison algorithm written […]
Dec, 20
Track finding in ATLAS using GPUs
The reconstruction and simulation of collision events is a major task in modern HEP experiments involving several ten thousands of standard CPUs. On the other hand the graphics processors (GPUs) have become much more powerful and are by far outperforming the standard CPUs in terms of floating point operations due to their massive parallel approach. […]
Dec, 20
GPU Environmental Delegation of Agent Perceptions for MABS
Considering the digital simulation of complex systems, General-Purpose Computing on Graphics Processing Units (GPGPU) is a relevant approach for addressing scalability issues. However, GPU programming is a very specific approach that strongly limits both the accessibility and the re-usability of the frameworks developed using GPGPU. This paper presents our approach for the integration of GPU […]
Dec, 20
GPUs: An Oasis in the Supercomputing Desert
A novel metric is introduced to compare the supercomputing resources available to academic researchers on a national basis. Data from the supercomputing Top 500 and the top 500 universities in the Academic Ranking of World Universities (ARWU) are combined to form the proposed "500/500" score for a given country. Australia scores poorly in the 500/500 […]