Gestalt of the Grid

Abstract

Definition: Grid approachThe Grid approach promotes a vision for sophisticated international scientific and business-oriented collaborations.The term "Grid" is an analogy to the electric power grid that allows pervasive access to electric power. In a similar fashion, computational Grids provide access to pervasive collections of compute-related resources and services. As early as 1965 the designers of the Multics operating system envisioned and named requirements for a computer facility operating "like a power company or water company" [82], and others envisioned Grid-like scenarios [60]. However, we emphasize that our current understanding of the Grid approach goes far beyond simply sharing compute resources in a distributed fashion. Besides supercomputer and compute pools, Grids include access to information resources (such as large-scale databases) and access to knowledge resources (such as collaborative interactions between colleagues). Essential is that these resources may be at geographically disperse locations and may be controlled by different organizations. Thus, the following definition for a Grid is appropriate: Definition: GridAn infrastructure that allows for flexible, secure, coordinated resource sharing among dynamic collections of individuals, resources, and organizations.So far we have used the term Grid rather abstract manner. To distinguish the concept of a Grid from an actual instantiation of a Grid as a real available infrastructure we use the term production Grid. Such production Grids are typically shared among a set of users. The analogy in the electrical power grid would be a power company or agglomerate of companies that maintain their own grid while providing persistent services to the user community. Thus, the following definition is introduced: Definition: Production GridAn instantiaion of a Grid that manifests itself by including a set of resources to be accessed by Grid users.Additionally, we expect that multiple production Grids will exist and be supported by multiple organizations. Fundamental to the Grid is the idea of sharing.

Decision Support Systems used in Disaster Management

“…The optimum system hardware will be specified only when the solution has been implemented on the host system. The higher the number of users, the more powerful should the hardware be to ensure optimum performance (Jeffery & Kacsuk, 2004), (Laszewski & Wagstrom, 2004). Specialized Hardware GSM communication is ensured by a GSM Modem and if the number of SMS messages is too high, the Bulk SMS Message service provided by a local mobile operator could be a good choice.…”

Eigen Trust Algorithm for Resource Selection in Grid Computing

“…Grid computing [2] initially focused on largescale resource sharing, innovative applications, and achievement of high-performance. Today, the Grid approach [3] suggests the development of a distributed service environment that integrates a wide variety of resources with various qualities of service capabilities to support scientific and business problem solving environments. However, optimal utilization of these distributed services and resources often require the Grid user to make a prudent decision regarding the capacity of these remote resources.…”

The Java CoG kit grid desktop : a simple and central approach to grid computing using the graphical desktop paradigm.

“…The road system enables us to travel by car; the international banking system allows us to transfer funds across borders; and the Internet allows us to communicate with virtually any electronic device." Luckily, Grid Computing technology infrastructure is being developed under the auspices of the Global Grid Forum (GGF), which is an international community-initiated forum of individual researchers and practitioners working on various facets of Grids [2]. The GGF oversees all Grid related activities including applications, development, and community relations (see Figure 6).…”

“…In essence, the Grid architecture combines security management with general Grid management entities like tasks, data, communities and services (see Figure 3). A good summary of these issues are explained in [2]. Essentially, Grid management oversees interactions between socio-political entities and the Information Technology (IT) infrastructure.…”