Shared resource

About: Shared resource is a research topic. Over the lifetime, 7536 publications have been published within this topic receiving 123491 citations. The topic is also known as: network share.

Availability Modeling and Cost Optimization for the Grid Resource Management System

Abstract: Grid computing is a recently developed technique for complex systems with large-scale resource sharing, wide-area communication, and multi-institutional collaboration. Although the development tools and techniques for the grid have been extensively investigated, the availability of the grid resource management system (RMS) has not been comprehensively studied. In order to contribute to this lacking but important field, this paper first models the grid RMS availability by considering both the failures of resource management (RM) servers and the length limitation of request queues. A hierarchical Markov reward model is implemented to evaluate the grid RMS availability. Based on the availability model, an optimization problem for designing the grid RMS is studied in order to minimize the cost by determining the best number of RM servers. Then, the sensitivity analysis is conducted, and a dynamic switching scheduling method is further presented based on the sensitivity analysis.

Method for balancing resource sharing and application latency within a data processing system

Abstract: A technique for managing application workloads in a data processing system includes establishing a reserve resource allocation of a data processing resource for use by a data processing application having a need to utilize the resource, sharing a portion of the resource that is not part of the reserve resource allocation or otherwise utilized by the application with other applications, allowing the application to consume the reserve resource allocation when the application desires to increase its utilization of the resource, and replenishing the reserve resource allocation from the sharable portion of the resource as the application consumes the reserve resource allocation. Advantageously, the reserve resource allocation can be effectively managed so that the data processing resource is available to the application in order to reduce application latency without depriving other applications of the ability to use the resource.

Toward a framework for power control in cellular systems

Abstract: Efficiently sharing the spectrum resource is of paramount importance in wireless communication systems, in particular in Personal Communications where large numbers of wireless subscribers are to be served. Spectrum resource sharing involves protecting other users from excessive interference as well as making receivers more tolerant to this interference. Transmitter power control techniques fall into the first category. In this paper we describe the power control problem, discuss its major factors, objective criteria, measurable information and algorithm requirements. We attempt to put the problem in a general framework and propose an evolving knowledge-bank to share, study and compare between algorithms.

A Privacy, Trust and Policy based Authorization Framework for Services in Distributed Environments

Abstract: Distributed Environments are touching new heights, becoming more useful, popular and more complex with the emergence of service oriented architecture and computing technologies like peer-to-peer, autonomic, pervasive and grid etc. These technologies aim to enable large scale resource sharing. Security is a big and challenging issue in these environments as it involves the federation of multiple heterogeneous, geographically distributed autonomous administrative domains. The dynamic and multi- institutional nature of service oriented environments like grid and web introduces several challenging security issues that require new technical approaches. This paper proposes a privacy, trust and policy based authorization framework for grid and web services, but, in fact can be amended for any distributed, service oriented computing environment as most of the elements defined in the framework are general and adaptable in other computing environments. The framework is intended to provide a simple, powerful, flexible and scalable authorization infrastructure for services exposed in a large scale distributed environment. The paper also discusses a prototype implementation of the proposed framework. For implementation, we are making use of web services security specifications supported by WSE 3.0. Sample implementation has shown that the architecture is capable of meeting the identified security requirements and the approach is workable.

Multithreaded Processor with Lock Indicator

Abstract: Systems and methods including a multithreaded processor with a lock indicator are disclosed. In an embodiment, a system includes means for indicating a lock status of a shared resource in a multithreaded processor. The system includes means for automatically locking the shared resource before processing exception handling instructions associated with the shared resource. The system further includes means for unlocking the shared resource.