high performance computing on graphics processing units: hgpu.org

Currently there is considerable interest in making use of many-core processor architectures, such as Nvidia and AMD graphics processing units (GPUs) for scientific computing. In this work we explore the use of the Open Computing Language (OpenCL) for a typical Numerical Relativity application: a time-domain Teukolsky equation solver (a linear, hyperbolic, partial differential equation solver […]

For the typical graph algorithms encountered most frequently in practice (such as those introduced in typical entry-level algorithms courses: graph searching/traversals, shortest paths problems, strongly connected components and minimum spanning trees) we want to consider practical non-sequential platforms such as the emergence of cost effective General-Purpose computation on Graphics Processing Units (GPGPU). In this paper […]

General Purpose GPU programming has the potential to increase the speed with which many computations can be done. We show a number of examples of such improvements, investigate how one can benchmark different implementations of GPGPU programming paradigms and how one can measure the productivity of programmers. Finally we implement and describe a simple toolkit […]

Heterogeneous computing systems can dramatically increase the performance of parallel applications on clusters. Currently, applications that utilize GPU and APU devices, run their device-specific code only on devices of the same computer were the application runs. This paper presents the MOSIX Virtual OpenCL (VCL) cluster platform that can run unmodified OpenCL applications transparently on clusters […]

This paper presents a webcam-based spherical coordinate conversion system using OpenCL massive parallel computing for panorama video image stitching. With multi-core architecture and its high-bandwidth data transmission rate of memory accesses, modern programmable GPU makes it possible to process multiple video images in parallel for real-time interaction. To get a panorama view of 360 degrees, […]

Recent developments in processor architecture have settled a shift from sequential processing to parallel processing. This shift was not based on a breakthrough in processor design, but was actually an alternative design trajectory to avoid the limits that were reached on single core development. Along with the shift towards parallel architectures, a gap arose between […]

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 […]

The article deals with the problem of real time color correction on modern but not dedicated video hardware, suggesting a new implementation of fast algorithm for color transformation utilizing 3D look-up tables. We focus on highly parallel nature of the proposed method and employ the GPU to perform the color calculations side-byside. The paper is […]

Recently, OpenCL, a new open programming standard for GPGPU programming, has become available in addition to CUDA. OpenCL can support various compute devices due to its higher abstraction programming framework. Since there is a semantic gap between OpenCL and compute devices, the OpenCL C compiler plays important roles to exploit the potential of compute devices […]