Computational Grids (or simply Grids) enable access to a large number of resources typically including processing, memory, and storage devices. Usually, Grids are used for running very specific applications (most of them related to some kind of scientific hard problem); however, not much attention has been paid to commercial Grid applications. The massive use of such commercial services will de...

Grid computing is now in widespread use, which integrates geographical computing resources across multiple virtual organizations to achieve high performance computing. In this paper, we present a new grid architecture, which integrates multiple computational grids, named Multi-Grid, from different virtual organizations. The proposed architecture could solve the large-scale computational problem...

Grid computing is based on coordinated resource sharing in a dynamic environment of multi-institutional virtual organizations. Data exchanges, and service allocation, are challenging problems in the field of Grid computing. This is due to the decentralization of Grid systems. Building decentralized Grid systems with efficient resource management and software component mechanisms is a need for a...

This paper proposes a novel research direction: to build the Theory Grid as cooperatively shared formal theories within a virtual organization, and then to implement Grid Theorists as the wisdom of crowds working based on the Theory Grid such that the grid theorists have the ability to find new theorems and propose new questions semi-automatically.

Medical image data is usually represented by a uniformly spaced grid of voxels. However, CT scanners for example are capable of producing non-uniformly spaced slice images. This is desirable when for a particular patient some regions (lesions) need to be imaged with a high resolution, while a lower resolution would be sufficient in other areas. Such an adaptive slice spacing can significantly r...

In this paper, we introduce a new method to generate a hybrid mesh from a CPG (Corner Point Geometry) reservoir grid and a radial mesh around a well. The method is an extension of the approach proposed in [1] to the case of CPG grids with high level of deformation. This ensures a fully functional mesh generation for realistic cases. The main idea is first to construct a mapping between the real...

Ian Foster’s What is The Grid ? paper gives the generally accepted definition of Grid and Grid computing. While sound, it does not precisely define the involved concepts, which may lead to misunderstandings. We propose a tentative set of definitions for Grid, Grid computing and related concepts such as Virtual Organization, Grid resource sharing architectures and policies. Several design parame...