high performance computing on graphics processing units: hgpu.org

We discuss implementation aspects of a software-defined radio system that allows for dynamic waveform reconfiguration during runtime without interrupting dataflow processing. Traditional software-defined radio systems execute a waveform statically, exactly as it is programmed. Reconfiguration is provided by executing a different waveform, which requires the system to stop processing data while reconfiguration occurs, and also […]

In this paper we present our experience in developing an optimizing compiler for general purpose computation on graphics processing units (GPGPU) based on the Cetus compiler framework. The input to our compiler is a naive GPU kernel procedure, which is functionally correct but without any consideration for performance optimization. Our compiler applies a set of […]

Genome-wide association studies (GWAS) are performed in order to detect the genetic variations associated with physical traits (e.g. diseases), and Plink is a popular software system for analyzing the data of GWAS. Due to the large datasets involved, the task of data processing can be very time-consuming. Although GPUs (graphics processing units) are not generally […]

This report aims to provide a beginner’s introduction to GPUs, from both a hardware and a software angle. We look at the evolution of specialist graphics hardware from the early days of PC graphics cards to the present day. We describe the currently available hardware from NVIDIA and AMD/ATI, and the current software from both […]

A desired trend within high energy physics is to increase particle accelerator luminosities, leading to production of more collision data and higher probabilities of finding interesting physics results. A central data analysis technique used to determine whether results are interesting or not is the maximum likelihood method, and the corresponding evaluation of the negative log-likelihood, […]

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 […]

High-performance computing (HPC) uses supercomputers and computer clusters to solve advanced computation problems. HPC has come to be applied to business uses of cluster-based supercomputers, such as data warehouses, line-of-business (LOB) applications, and transaction processing. In the past few years, a new class of HPC systems has emerged. These systems employ unconventional processor architectures-such as […]

Ray tracing is one of the important elements in photo-realistic image synthesis. Since ray tracing is computationally expensive, a large body of research has been devoted to improve the performance of ray tracing. One of the recent developments on efficient ray tracing is the implementation on graphics hardware. Similar to general purpose CPUs, recent graphics […]

Problem description: Most public key algorithms are based on modular arithmetic. The simplest, and original, implementation of the protocol uses the multiplicative group of integers modulo p, where p is prime and g is primitive root mod p. This is the way Diffie-Hellman is implemented. RSA is implemented in a similar way c=me mod p*q. […]

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 […]

An important task in any graphical simulation is the collision detection between the objects in the simulation. It is desirable to have a good general method for collision detection with high performance. This thesis describes an implementation of a collision detection method that uses distance fields to detect collisions. This method is quite robust and […]

High-particle-count simulations are becoming increasingly crucial in many different aspects of our world today: both in entertainment – within video games, movies, and the like – and in scientific fields, where particle systems are capable of simulating and visualizing many interesting phenomena. This paper will explore the possibility of parallelizing the simulation of these large […]