high performance computing on graphics processing units: hgpu.org

Molecular dynamics is a widely used simulation technique to investigate material properties and structural changes under external forces. The availability of more powerful clusters and algorithms continues to increase the spatial and temporal extents of the simulation domain. This poses a particular challenge for the visualization of the underlying processes which might consist of millions […]

AMD’s first Fusion Accelerated Processor Unit (APU) codenamed "Zacate" combines a pair of x86 CPUs cores codenamed "Bobcat", 1MB L2 Cache, Client Northbridge (CNB), with a DirectX" 11 Radeon HD5000 graphics/multimedia controller on a single die. The CNB provides an interface to a sin gle 64b DDR3 memory channel, which can operate at up to […]

Recent advances in highly parallel, multithreaded, manycore Graphics Processing Units (GPUs) have been enabling massive parallel implementations of many applications in bioinformatics. In this paper, we describe a parallel implementation of genome-wide association studies (GWAS) using Compute Unified Device Architecture (CUDA). Using a single NVIDIA GTX 280 graphics card, we achieve speedups of about 15 […]

A reconfigurable processor tailored for accelerating Phylogenetic Inference is proposed. In this paper, a programmable and scalable architectural platform instantiates an array of coarse grained light weight processing elements and allows arbitrary partitioning and scheduling schemes and capable of solving complete Maximum Likelihood algorithm and deal with arbitrarily large sequences. The key difference of the […]

We present an efficient method for volume rendering by ray casting on the CPU. We employ coherent packet traversal of an implicit bounding volume hierarchy, heuristically pruned using preintegrated transfer functions, to exploit empty or homogeneous space. We also detail SIMD optimizations for volumetric integration, trilinear interpolation, and gradient lighting. The resulting system performs well […]

Face detection is an important aspect for biometrics, video surveillance and human computer interaction. We present a multi-GPU implementation of the Viola-Jones face detection algorithm that meets the performance of the fastest known FPGA implementation. The GPU design offers far lower development costs, but the FPGA implementation consumes less power. We discuss the performance programming […]

This paper presents a novel Graphics Processing Unit (GPU)-based system for pedestrian detection with stereo vision in real images on mobile robot. The process of obtaining a dense disparity map on a GPU for real-time applications and the edge property of the scene to extract a region of interest (ROI) is designed. After extracting the […]

Sequence alignment is one of the most fundamental and important operation in bioinformatics. Through sequence alignment, we can find the sequence’s information of function, structure and evolution. BLAST is one of the most popular algorithms in the field of sequence alignment. In this paper, we have designed a GPU-based parallel BLAST algorithm and implemented it […]

We introduce a newly developed compiler for high performance computing using many-core accelerators. A high peak performance of such accelerators attracts researchers who are always demanding faster computers. However, it is difficult to create an efficient implementation of an existing serial program for such accelerators even in the case of massively parallel problems. While existing […]

This paper describes a robust method for the local optical flow estimation and the KLT feature tracking performed on the GPU. Therefore we present an estimator based on the L^2 norm with robust characteristics. In order to increase the robustness at discontinuities we propose a strategy to adapt the used region size. The GPU implementation […]

This article covers the Xbox 360’s high-level technical requirements, a short system overview, and details of the CPU and the GPU. The Xbox 360 contains an aggressive hardware architecture and implementation targeted at game console workloads. The core silicon implements the product designers’ goal of providing game developers a hardware platform to implement their next-generation […]

Scientists, engineers and physicians are now confronted with a fire hose of data. Immersive visualization environments provide these users with a novel way of interacting and reasoning with large datasets. They allow them to utilize the entirety of their visual bandwidth, effectively engulfing the user in the data and enabling collaborative interaction. We present a […]