This paper considers a new parallel dynamic load-balancing algorithm which has been developed for use in conjunction with an unstructured tetrahedral parallel adaptive solver for transient ow problems. A brief description of the 3-d adaptivity algorithm is then followed by a discussion of the load-balancing problem. The practical load-balancing algorithm is then explained, followed by a discuss...

We report the design of a cost effective, highly sensitive cw laser power meter with a large dynamic range based on a photodiode. The power meter consists of a photodiode, a current to voltage converter circuit, an offset balancing circuit, a microcontroller, an analog to digital converter, reed relays, and an alphanumeric liquid crystal display. The power meter can record absolute laser power ...

-Load balancing has been a key concern for traditional multiprocessor systems. The emergence of computational grids extends this challenge to deal with more serious problems, such as scalability, heterogeneity of computing resources and considerable transfer delay. Due to the dynamic property of grid environment, fixed-parameter prediction model cannot exert its forecast capability completely. ...

Massively parallel architectures require decentralized and scalable system policies. The paper presents and evaluates a set of local dynamic load balancing strategies inspired by diffusion and characterized by different scopes of locality: the goal is to compare their performance depending on the application dynamicity. The paper shows that only slowly dynamic applications can take advantage of...

Abstract The general scheme of two-level parallelization (TLP) for direct simulation Monte Carlo of unsteady gas ows on shared memory multiprocessor computers has been described. The high e cient algorithm of parallel independent runs is used on the rst level. The data parallelization is employed for the second one. Two versions of TLP algorithm are elaborated with static and dynamic load balan...

A cell-projection parallel volume rendering system for unstructured grid volume data is proposed in this paper. For this system, the modified early ray termination scheme is proposed to prune the cell-projection of invisible cell. In order to alleviate load imbalance due to view-dependency in scan-conversion and the dynamic behavior of early-ray termination, the authors also implement dynamic l...

We examine load balancing in a simple pipeline computation, in which a large number of data sets is pipelined through a series of tasks and load balancing is performed by distributing several available processors among the tasks. We compare the performance of the optimal static processor assignment to the performances of three dynamic processor assignment algorithms. Models are derived which al...