In this paper, we address the problem of allocating disk resources to guarantee specified latency and throughput targets of VMs while keeping efficient disk I/O. Accordingly, we present two-level scheduling framework,...
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This paper presents JaSkel, a skeleton-based ftamework to develop parallel and grid applications. The framework provides a set of Java abstract classes as a skeleton catalogue, which implements recurring parallel inte...
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ISBN:
(纸本)0769525857
This paper presents JaSkel, a skeleton-based ftamework to develop parallel and grid applications. The framework provides a set of Java abstract classes as a skeleton catalogue, which implements recurring parallel interaction paradigms. This approach aims to improve code efficiency and portability. It also helps to structure scalable applications through the refinement and composition of skeletons. Evaluation results show that using the provided skeletons do contribute to improve both application development time and execution performance.
The Scientific Annotation Middleware (SAM) is a set of components and - services that enable researchers, applications, problem solving environments (PSE) and software agents to create metadata and annotations about d...
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ISBN:
(纸本)0780390741
The Scientific Annotation Middleware (SAM) is a set of components and - services that enable researchers, applications, problem solving environments (PSE) and software agents to create metadata and annotations about data objects and document the semantic relationships between them. Developed starting in 2001, SAM allows applications to encode metadata within files or to manage metadata at the level of individual relationships as desired. SAM then provides mechanisms to expose metadata and relationships encoded either way as WebDAV properties. In this paper, we report on work to further map this metadata into RDF and discuss the role of middleware such as SAM in bridging between traditional and semantic grid applications.
Internet data centers (IDCs) perform multi-customer hosting on a virtualized collection of resources while gridcomputing generalizes distributed computing by focusing on large scale resource sharing (I. Foster et al....
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ISBN:
(纸本)9780780390744
Internet data centers (IDCs) perform multi-customer hosting on a virtualized collection of resources while gridcomputing generalizes distributed computing by focusing on large scale resource sharing (I. Foster et al., 2001). When we consider the problem of resource allocation, the connection between grid and IDC is obvious. Indeed, both systems use similar resource reservation patterns. Mainly, service level agreement for IDC, and advanced resource reservation in grid systems (J. MacLaren, 2003). In each world, those reservation patterns are deemed to precisely represent resource requirements. This work presents an autonomous system for online resource allocations. The simulated architecture represents some IDC but our problem solving concepts are applicable to grid infrastructures. Our system takes advantage of monitoring information to reconsider its mathematical modelling of the components. This results in a continuous adaptation of the allocated resources.
The Scientific Annotation Middleware (SAM) is a set of components and services that enable researchers, applications, problem solving environments (PSE) and software agents to create metadata and annotations about dat...
详细信息
ISBN:
(纸本)9780780390744
The Scientific Annotation Middleware (SAM) is a set of components and services that enable researchers, applications, problem solving environments (PSE) and software agents to create metadata and annotations about data objects and document the semantic relationships between them. Developed starting in 2001, SAM allows applications to encode metadata within files or to manage metadata at the level of individual relationships as desired. SAM then provides mechanisms to expose metadata and relationships encoded either way as WebDAV properties. In this paper, we report on work to further map this metadata into RDF and discuss the role of middleware such as SAM in bridging between traditional and semantic grid applications.
As processors become more powerful and clusters larger, users will exploit this increased power to progressively run larger and larger problems. Today's datasets in biology, physics or multimedia applications are ...
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ISBN:
(纸本)0769510108
As processors become more powerful and clusters larger, users will exploit this increased power to progressively run larger and larger problems. Today's datasets in biology, physics or multimedia applications are huge and require high-performance storage sub-systems. As a result, the hot spot of clustercomputing is gradually moving from high performance computing to high performance storage I/O. The solutions proposed by the parallel file-system community try to improve performance by working at the kernel level to enhance the regular I/O design or by using a dedicated Storage Area Network like Fiber Channel. We propose a new design to merge the communication network and the storage network at the best price. We have implemented it in OPIOM with the Myrinet interconnect: OPIOM moves data asynchronously from SCSI disks to the embedded memory of a Myrinet interface in order to send it to a remote node. This design presents attractive features: high performance and extremely low host overhead. (C) 2002 Published by Elsevier Science B.V.
High performance computing on parallel architectures currently uses different approaches depending on the hardware memory model of the architecture, the abstraction level of the programming environment and the nature ...
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ISBN:
(纸本)0769510108
High performance computing on parallel architectures currently uses different approaches depending on the hardware memory model of the architecture, the abstraction level of the programming environment and the nature of the application. In this article, we introduce an original client-server execution model based on RPCs called out-of-order parallel virtual machine (OVM). OVM aims to provide three main features: portability through a unique memory model, load-balancing using a plug-in support and high performance provided by several optimizations. The main optimizations are: non-blocking RPCs, data-flow management, persistent and non-persistent data, static data set distribution, dynamic scheduling and asynchronous global operations. We present OVM general architecture and demonstrate high performance for regular parallel applications, a parallel application with load balancing needs and a parallel application with real-time constraints. We firstly compare the performance of OVM and MPI for three kernels of the NAS 2.3. Then we illustrate the performance capability of OVM for a large real-life application that needs a load balancing support called AIRES. Finally, we present the performance of a real-time version of the PovRay ray-tracer demonstrating the reactiveness of OVM. (C) 2002 Published by Elsevier Science B.V.
The proceedings contain 93 papers. The topics discussed include: the anatomy of the grid: enabling scalable virtual organizations;programming high performance applications in grid environments;grid RPC meets data grid...
ISBN:
(纸本)0769510108
The proceedings contain 93 papers. The topics discussed include: the anatomy of the grid: enabling scalable virtual organizations;programming high performance applications in grid environments;grid RPC meets data grid: network enabled services for data farming on the grid;the world wide computer: prospects for parallel and distributed computing on the web;MPIFT: architecture and taxonomies for fault-tolerant, message-passing middleware for performance-portable parallel computing;effective Internet gridcomputing for industrial users;design of a generic platform for efficient and scalable clustercomputing based on middleware techniques;optimizing execution of component-based applications using group instances;containers: a sound basis for a true single system image;QoS-aware discovery of wide-area distributed services;and user preference driven multiobjective resource management in grid environments.
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