The modification of a general purpose code for quantum mechanical calculations of molecular properties (Q-Chem) to use a graphical processing unit (GPU) is reported. A 4.3x speedup of the resolution-of-the-identity second-order Møller-Plesset perturbation theory (RI-MP2) execution time is observed in single point energy calculations of linear alkanes. The code modification is accomplished using...

This chapter presents NVIDIA general purpose graphical processing unit (GPGPU) architecture, by detailing both hardware and software concepts. The evolution of GPGPUs from the beginning to the most modern GPGPUs is presented in order to illustrate the trends that motivate the changes that occurred during this evolution. This allows us to anticipate future changes as well as to identify the stab...

lack of forest management plan and forest road network caused that the traditional tree felling and processing was developed in hyrcanian forest. in this system, trees are felled, limbed and topped motor-manually. felled trees are processed with chainsaws into lumber and/or pulpwood. in order to evaluate this system, lumber processing was studied in two compartments of namkhaneh district in khe...

This paper illustrates the design and implementation of a prototype ASP solver that is capable of exploiting the parallelism offered by general purpose graphical processing units (GPGPUs). The solver is based on a basic conflictdriven search algorithm. The core of the solving process develops on the CPU, while most of the activities, such as literal selection, unit propagation, and conflictanal...

Rgtsvm provides a fast and flexible support vector machine (SVM) implementation for the R language. The distinguishing feature of Rgtsvm is that support vector classification and support vector regression tasks are implemented on a graphical processing unit (GPU), allowing the libraries to scale to millions of examples with >100-fold improvement in performance over existing implementations. Nev...

In recent years, significant number of papers [1][2] have been published about general-purpose graphical processing unit (GPGPU ) programs which are able to accelerate computationally intensive applications by several times over conventional CPU programs. These papers raise an important question: With the current developer tools is it possible to integrate these GPU programs into a major indust...

A graphically-oriented MATLAB program written by the authors facilitates teaching real-world digital signal processing concepts such as quantization of digital filter coefficients that occur in fixed-point processors, for example the widely used TMS320C5x. While many universities have or plan to buy the inexpensive floating-point TMS320C31 DSKs for pedagogical reasons, this MATLAB program simul...

Security systems play an important role in the protection of lives and investment. The aim of this project is to design an efficient and cheap security system, which is accessible from any part of the world through the internet, and can be employed in every facet of the economy. This is achieved by incorporating various subsystems (such as surveillance, intruder control, access control, fire de...

The long computation times required for fluid dynamics simulations (CFD) has lead the industry to look for some alternatives to boost high performance computing (HPC). This paper is focused on the acceleration of fluid dynamics simulations for industrial complex configurations using modern graphics cards (GPUs) that exhibits a substantial parallel architecture. First, some general facts about g...