This paper discusses load-balancing issues when using heterogeneous cluster computers. There is a growing trend towards the use of commodity microprocessor clusters. Although today’s microprocessors have reached a theoretical peak performance in the range of one GFLOPS=s, heterogeneous clusters of commodity processors are amongst the most challenging parallel systems to programme efficiently. W...

The last advances in commodity hardware have allowed users of immersive visualization to create high-performance systems using a set of interconnected computers. These systems, called cluster computers, allow to employ high-quality graphics cards, high-speed processors and significant amounts of memory for much lower costs than would be possible with high-end, shared memory computers traditiona...

Cluster update algorithms dramatically reduce critical slowing down in spin models , but unlike the standard Metropolis algorithm, it is not obvious how to implement these algorithms efficiently on parallel or vector computers. Here we present two different parallel implementations of the Swendsen-Wang algorithm which give reasonable efficiencies on various MIMD parallel computers.

Clusters usually consist of servers, workstations or personal computers as nodes. But especially for academic purposes like student projects or scientific projects, the cost for purchase and operation can be a challenge. Single board computers cannot compete with the performance or energy-efficiency of higher-value systems, but they are an option to build inexpensive cluster systems. Because of...

in this paper, a formal model for antivirus update agent system is presented based on mobile agent technology and predicate/transition petri nets. the mobile agent system contains two mobile agents called dca and una. it sends out agents to update antivirus on client computers in a network. each agent takes on a specified responsibility. first, dca roams through the network and check the last d...

The aim of this study was to describe and find out motivational English language learning strategies through computers among Iranian EFL learners and find out how learners’ motivations change towards English language learning through computers.The mixed method approach (quantitative and qualitative) was employed in this study. A total of 84 (out of 130) female freshman university learners from ...

Using of a cluster of Graphics Processing Unit (GPU) equipped computers, it is possible to accelerate the evaluation of individuals in Genetic Programming. Program compilation, fitness case data and fitness execution are spread over the cluster of computers, allowing for the efficient processing of very large datasets. Here, the implementation is demonstrated on datasets containing over 10 mill...

Personal computers contribute significantly to the growing problem of electronic waste. Every computer, when finished with, must be stored, dumped, recycled, or somehow re-used. Most are dumped, at a huge cost to health and the environment, as their owners succumb to the desire to keep up with the ever-increasing power of new computers. Supercomputers and computer clusters provide more power th...

introduction: in the current world of business, benefiting from information technology is considered as one of the main factors to develop and improve the performance of organizations. this study was performed to identify access to infrastructures of information technology among the managers and executive experts of health departments in iranian universities of medical sciences. it also tried t...