Grid computing is concerned with the sharing and use of resources in dynamic distributed virtual organizations. The dynamic nature of Grid environments introduces challenging security concerns that demand new technical approaches. In this brief overview we review key Grid security issues and outline the technologies that are being developed to address those issues. We focus on works done by Glo...

­ In this paper we demonstrate how to efficiently exploit the massive amount of idle CPU cycles from workstations and desktop PCs for Grid computing. The cycle harvesting is achieved by using sandbox technology and a generic guest operating system, specifically designed for the Grid resource. This relieves the resource owner from the complexity of installing and managing not only the resource s...

This paper presents the architecture of the Virtual Laboratory Abstract-Machine (VL-AM), a data and process handling system on the Grid. This system has been developed within the context of the Virtual Laboratory (VL) project, which aims at building an environment for experimental science. The VL-AM solves problems commonly faces when addressing process and data handling in a heterogeneous envi...

In this paper, we consider how to create a Polygon for testing Grid products on the base of the Sun Grid Engine. Now various realizations of GRID – systems are actively developed, the quantity of the users having access to systems of distributed calculations and data storage increases. we also focused on the description of the development of element of virtual testbed for marine technology virt...

Grid computing is concerned with the sharing and coordinated use of diverse resources in distributed "virtual organizations (VOs).” The dynamic and multi-institutional nature of these environments introduces challenging security issues that demand new technical approaches. This paper reflects the challenges and requirements we have identified thus far in an OGSA environment and we proposes a st...

This contribution presents the design and implementation of a bank service, constituting a key component in a recently developed Grid accounting system solution. The Grid accounting system maintains a Grid-wide view of the resources consumed by members of a virtual organization. The bank is designed as an online service, managing the accounts of VO projects. Each service request is transparentl...

Big data storage management is one of the most challenging issues for Grid computing environments, since large amount of data intensive applications frequently involve a high degree of data access locality. Grid applications typically deal with large amounts of data. In traditional approaches high-performance computing consists dedicated servers that are used to data storage and data replicatio...

Big data storage management is one of the most challenging issues for Grid computing environments, since large amount of data intensive applications frequently involve a high degree of data access locality. Grid applications typically deal with large amounts of data. In traditional approaches high-performance computing consists dedicated servers that are used to data storage and data replicatio...

The XtreemOS operating system provides for Grids what a traditional operating system offers for a single computer: abstraction from the hardware and secure resource sharing between different users. It thus simplifies the work of users belonging to virtual organizations by giving them the illusion of using a traditional computer while removing the burden of complex resource management issues of ...

In wireless sensor networks, there is a need to have energy efficient data dissemination approaches at routing layer due to limited battery capacity of a sensor node. The article proposes an energy efficient virtual grid based data dissemination algorithm in wireless sensor networks. We consider a scenario having multiple sources and sinks. In order to perform the task of packet forwarding in a...