1. What is grid, grid goal? The grid is a concept that is borrowed from the power grid. It was originally desirable to calculate and compute resources. "Open the power switch can be used", do not need to care for who, how to provide these services. The goal of the grid is abstract and quantifies the computing resource, and it is possible to complete the "quantification" calculation through the network "quota", anytime, anywhere. 2. What is the essential characteristics of the grid? The essential characteristics of the grid are: distribution and resource sharing: distribution is the most characteristic of the grid, the grid is to complete the calculation by centralized resource, and the sharing of resources is a means of concentrated resources. Height abstract: Put calculation And all computational resources are highly abstract to become the "power wiring board" visible to the user, and the other things are transparent to the user. Self-similarity: There is the same or similar law dynamics and diversity in large scale and small scale: Like the power grid, the user's demand is changed, so the dynamicity is a basic problem autonomousness that the grid needs to be considered. Multipleness of management: Autonomous and external controlled integration inside the grid node is a feature of the grid, and the hierarchical resources require hierarchical management, and the hierarchical considerations from the homepacted nodes. . 3. What are the foundation concepts in grid computing? Resource Discovery: Resource Discovery is a grid to discover the available resources, and register, manage the process resource scheduling of these resources: How to make it easy to use the computing resources collected by the grid to efficiently use the research cateirild of resource scheduling : It is an abstract source power element calculation: It is the calculation of "calculation", just like "element language" is the language of the language, the metad calculation is calculated to carry out calculation activities, which is the meter of the mesh. Abstract Process computing grid: Grid focus on a mesh structure data grid in solving high-density calculation, focus on high-density, massive data storage and management, grid structure of using the process 4. How to determine if it is a grid There is no exact definition of the grid, and can only be judged according to some of the basic features of the grid. P2P is strictly a grid. According to the founder of Globus Toolkit, globus is grid, this point of view is a little biased, and I think so. 5. Is there a standard in the grid? Is there a standard? OGSI and OGSA are currently a standard for grids 6. What is a very simple example? What is grid, such as P2P, currently implemented sharing, to resolve server resource restrictions (bandwidth and service capabilities), but The current P2P calculation is still in hot research. It is characterized by distributed shared storage and bandwidth resources, including partial computing resources sharing to improve the availability of services, which already includes several main features of the grid. Another example, some abroad, such as anti-cancer projects, fully discover the PC's calculation to find new drugs for treatment, also have corresponding features, but its resource scheduling is very thick, and the coupling of each node is very loose, as long as the task is calculated As a result, the node is only swapped with the central node, and the structure is relatively simple. 7. How to reflect the strength of the grid in the application area (large computing throughput), low cost 8. Why don't you consider your grid than to do your grid, just use it. 9. How to classify the grid into compute grid, data grid, access grid, information grid, service grid, etc. He is a metal calculation, and the grid is related to the network computing technology is to pass a set of wide area networks. Connecting the different computational resources set, as a separate computing environment provides users with calculation services. The goal of the metadata system is to enable the user to share the computational resources and calculate in cooperation. The front end of the yuan mainly solves the problem of the end users to use the various types of computing resources on the wide area online by unified interface; the yuan computing kernel mainly solves the problem of collaboration completion on various supercomputers in the wide area network, providing a complete program development and running surroundings.
When the user proposes a computing request, the execution code of the calculation problem is reasonably scheduling and managing on the computing resources within the system, and finally the operation results are obtained, and the front end is given to the end user. A good metamorphism system is mainly composed of three parts: one is as simple as possible and reliable use interface; the other is the resource management system; the third is a good programming model and a highly efficient runtime environment. Among them, the resource management system is in the core, it is responsible for the description, change, allocation and protection of various resources across the system, and work closely with the runtime system to ensure the normal operation of the entire system. The resource management system needs to provide strong tools or interfaces for different levels of system administrators to control and protect them. Yuan calculation is the primary form of grid calculation. 11. What is the grid of computing grid emphasizes calculation, management, etc. 12. What is data grid emphasizes data storage, management, transmission, and processing grid 13. What is information grid emphasizes information storage, management, transmission Processing grid 14. What is the grid of storage grid emphasizes data storage 15. What is a knowledge grid emphasizes knowledge storage, management, transmission, and processing grid 16. What is a mesh that emphasizes semantic parsing? Realize semantic interoperability 17. What is the simplicity of Access Grid, is a project. The purpose is to provide a simple and effective video, audio conference feature, providing a foundation for E-Science. Provide a single access channel to get the grid of the grid resource. . computing and communication (Distance and Distributed computing and communication, DisCom2) and the Earth system grid (Earth system grid II, ESG), TeraGrid and the national earthquake Engineering simulation grid (network for earthquake Engineering simulation grid, NEES grid), CrossGrid, Astronomical Virtual Observatory, Avo, UK National Grid, Germany's Computing Resource Unified Interface Project (Uniformore), Asia Pacific Sig.com (Apgrid) 21. What is P2P calculation, what is the relationship with the grid, the calculation is the new mode of implementing distributed computing on the Internet. In this mode, the server and client boundaries disappear, all nodes on the network can share computing resources for other nodes "equality". IBM is the following definition: peer-to-peer collaboration, and at least one of the following features: The system is actively collaborated by the marginalization (non-central server) device, each member directly from other Members are benefited from the participation of the server; members of the system simultaneously play the role of the server and the client; the user of the system application can be aware of each other, constitute a virtual or actual population. The grid uses a P2P calculation architecture 22. What is the relationship between grid and distributed calculation is a new high-performance distributed computing method. The grid calculation is a new generation of distributed computing methods, and the main difference between traditional distribution calculations is that the application is high-performance computing requirements by large-scale sharing of computing resources without centralized control mechanisms, and meets this A large-scale sharing of computing resources is dynamic, flexible, safe and collaborative.
