Topic
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.
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08 Nov 2004TL;DR: This work develops and evaluates different UP scenarios within a specialized context that mimics scientific grids within which the resources to be shared are computers and presents a UP architecture that defines roles and functions for scheduling resources in such grid environments while satisfying resource owner policies.
Abstract: Resource sharing within grid collaborations usually implies specific sharing mechanisms at participating sites. Challenging policy issues can arise within virtual organizations (VOs) that integrate participants and resources spanning multiple physical institutions. Resource owners may wish to grant to one or more VOs the right to use certain resources subject to local policy and service level agreements, and each VO may then wish to use those resources subject to VO policy. Thus, we must address the question of what usage policies (UPs) should be considered for resource sharing in VOs. As a first step in addressing this question, we develop and evaluate different UP scenarios within a specialized context that mimics scientific grids within which the resources to be shared are computers. We also present a UP architecture and define roles and functions for scheduling resources in such grid environments while satisfying resource owner policies.
48 citations
01 Jan 2000
TL;DR: This dissertation defines new protocols for concurrency control and synchronized access to files and data that exploit the SAN environment to improve performance and identifies that the architecture of the direct access file system invalidates traditional protocols for providing operational guarantees when networks fail and authenticating the identity and actions of computers and their applications.
Abstract: Many improvements in computer systems are initiated by new developments in the hardware on which these systems run. Currently, hardware for data storage are experiencing changes in connectivity, access semantics, and data rates because of storage area networks (SANs), which allow many computers to have shared access to storage devices over a high-speed network. The advent of SANs makes it possible to implement a high performance distributed file system by allowing client computers to obtain data directly from storage devices, rather than accessing data through a server that performs read and writes on their behalf.
However, a file system design that allows direct client access to data significantly changes both the performance and correctness of traditional protocols for data management. In this dissertation we define new protocols for concurrency control and synchronized access to files and data that exploit the SAN environment to improve performance. We also identify that the architecture of our direct access file system invalidates traditional protocols for providing operational guarantees when networks fail and authenticating the identity and actions of computers and their applications. We develop decentralized and distributed protocols for safe operation and authentication that are correct for the SAN environment. Our protocols make possible the implementation of a distributed file system that employs direct access to storage from clients to achieve high performance.
48 citations
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TL;DR: A semantic model is presented for information resource service modeling that uses semantic links instead of ontologies and takes advantage of semantic links to enable automated integrating and distributed updating in resource service cloud.
Abstract: Information resource services are the key element for resource sharing in cloud manufacturing. Traditional resource service models focus on modeling the attributes, interfaces, and descriptions of the resources into resource information services. Such resource services are suitable for local environment but suffer semantic heterogeneities in open cloud environment. Recently, well-designed ontologies are applied in resource service models to unify the schema and eliminate the semantic heterogeneities among the services. However, the effectiveness of ontology-based models mainly depends on the expertise of the ontology experts in ontology designing. Moreover, it is difficult to catch the dynamic changes in the cloud once the ontology has been embedded. In this paper, a semantic model is presented for information resource service modeling that uses semantic links instead of ontologies. The model takes advantage of semantic links to enable automated integrating and distributed updating in resource service cloud. In the experiment, the model is applied on practical manufacturing resources from a wheel manufacturing company. The case study and experimental results show that the proposed model is suitable for modeling manufacturing resources into cloud services and enables the flexible and distributed manipulation on resource services in the cloud environment.
48 citations
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27 Aug 2014TL;DR: The EUROSERVER device will embed multiple silicon "chiplets" on an active silicon interposer, which is pioneering a system architecture approach that allows specialized silicon devices to be built even for low-volume markets where NRE costs are currently prohibitive.
Abstract: EUROSERVER is a collaborative project that aims to dramatically improve data centre energy-efficiency, cost, and software efficiency. It is addressing these important challenges through the coordinated application of several key recent innovations: 64-bit ARM cores, 3D heterogeneous silicon-on-silicon integration, and fully-depleted silicon-on-insulator (FD SOI) process technology, together with new software techniques for efficient resource management, including resource sharing and workload isolation. We are pioneering a system architecture approach that allows specialized silicon devices to be built even for low-volume markets where NRE costs are currently prohibitive. The EUROSERVER device will embed multiple silicon "chiplets" on an active silicon interposer. Its system architecture is being driven by requirements from three use cases: data centres and cloud computing, telecom infrastructures, and high-end embedded systems. We will build two fully integrated full-system prototypes, based on a common micro-server board, and targeting embedded servers and enterprise servers.
48 citations
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24 Mar 2014TL;DR: This paper discusses how to combine a MC scheduling strategy with an optimization method for the partitioning of tasks to cores as well as the static mapping of memory blocks, i.e., task data and communication buffers, to the banks of a shared memory architecture.
Abstract: A common trend in real-time embedded systems is to integrate multiple applications on a single platform. Such systems are known as mixed-criticality (MC) systems when the applications are characterized by different criticality levels. Nowadays, multicore platforms are promoted due to cost and performance benefits. However, certification of multicore MC systems is challenging as concurrently executed applications of different criticalities may block each other when accessing shared platform resources. Most of the existing research on multicore MC scheduling ignores the effects of resource sharing on the response times of applications. Recently, a MC scheduling strategy was proposed, which explicitly accounts for these effects. This paper discusses how to combine this policy with an optimization method for the partitioning of tasks to cores as well as the static mapping of memory blocks, i.e., task data and communication buffers, to the banks of a shared memory architecture. Optimization is performed at design time targeting at minimizing the worst-case response times of tasks and achieving efficient resource utilization. The proposed optimization method is evaluated using an industrial application.
48 citations