The proceedings contain 77 papers. The topics discussed include: LDAP and the grid;cluster tools;the philosophy of Teragrid: building an open, extensible, distributed TeraScale facility;distributed computing technolog...
ISBN:
(纸本)0769515827
The proceedings contain 77 papers. The topics discussed include: LDAP and the grid;cluster tools;the philosophy of Teragrid: building an open, extensible, distributed TeraScale facility;distributed computing technologies and their application to drug discovery;from the 'Higgs particle' to technology, from the web to the grid: fundamental science, technology, andinternational cooperation;drug discovery on cluster farms;visualization and VR for the grid;a report from the US National Science Foundation Blue Ribbon Panel on cyberinfrastructure;grids deployment at the crossroads - an update on the EU-funded research efforts;adaptive scheduling under memory pressure on multi-programmed clusters*;user-centric performance analysis of market-based cluster batch schedulers;and on advantages of gridcomputing for parallel job scheduling.
The proceedings contain 13 papers. The topics discussed include: a novel PMU fog based early anomaly detection for an efficient wide area PMU network;data preservation through fog-to-cloud (F2C) data management in sma...
ISBN:
(纸本)9781538664889
The proceedings contain 13 papers. The topics discussed include: a novel PMU fog based early anomaly detection for an efficient wide area PMU network;data preservation through fog-to-cloud (F2C) data management in smart cities;edge enhanced deep learning system for large-scale video stream analytics;a novel forwarding policy under cloud radio access network with mobile edge computing architecture;synchronous scheduling algorithms for edge coordinated internet of things;adaptive nature-inspired fog architecture;an extension to IFOGSIM to enable data placement strategies;and towards lazy and locality-aware overlays for decentralized clouds.
This paper presents three algorithms for co-reserving resources. A novel mechanism for specifying QoS constraints with the requests is introduced. The performance of the algorithms are studied through extensive simula...
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ISBN:
(纸本)0769515827
This paper presents three algorithms for co-reserving resources. A novel mechanism for specifying QoS constraints with the requests is introduced. The performance of the algorithms are studied through extensive simulations. The results indicate that depending on the objective of optimization different algorithms should be used. One of the distinguishing features of our algorithms is that they operate in a pseudo-online mode (called the "batch" mode).
Resource management is a central part of a gridcomputing system. In a large-scale wide-area system such as the grid, security is a prime concern. One approach is to be conservative and implement techniques such as sa...
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ISBN:
(纸本)0769515827
Resource management is a central part of a gridcomputing system. In a large-scale wide-area system such as the grid, security is a prime concern. One approach is to be conservative and implement techniques such as sandboxing, encryption, and other access control mechanisms on all elements of the grid. However the overhead caused by such a design may negate the advantages of gridcomputing. This study examines the integration of the notion of "trust" into resource management such that the allocation process is aware of the security implications. We present a formal definition of trust and discuss a model for incorporating trust into grid systems. As an example application of the ideas proposed, a resource management algorithm that incorporates trust is presented. The performance of the algorithm is examined via simulations.
Inside a dedicated parallel computer the communication times were generally modeled in the same way, independently of which processors communicate. In a network where the links among the computers are heterogeneous, o...
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ISBN:
(纸本)0769515827
Inside a dedicated parallel computer the communication times were generally modeled in the same way, independently of which processors communicate. In a network where the links among the computers are heterogeneous, or in hierarchical clusters, this might not be trite anymore. Computers that have faster links, or are closer to each other should be able to exchange messages faster These differences on communication times should be considered, not only for attributing tasks to the processors but also in global synchronization/communication. The goal of this paper is to study irregular all-to-all communications in a network of dedicated clusters.
In this paper we show a cluster-based solution for analyzing magnetic resonance imaging from the brain in order to obtain information about the brain activity in conscious and awake subjects. The huge amount of data t...
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ISBN:
(纸本)0769515827
In this paper we show a cluster-based solution for analyzing magnetic resonance imaging from the brain in order to obtain information about the brain activity in conscious and awake subjects. The huge amount of data to be analyzed makes sense the use of computer clusters. Furthermore, one heterogeneous cluster has been chosen because is a more realistic net environment in the most of the medical institutions. The complete method in the future would be a new approach to real time detection of brain activity.
In this paper, we report on the experiences in designing a portable parallel file system for clusters. The file system offers to the applications an interface compliant with MPI-IO, the I/O interface of the MPI-2 stan...
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ISBN:
(纸本)0769515827
In this paper, we report on the experiences in designing a portable parallel file system for clusters. The file system offers to the applications an interface compliant with MPI-IO, the I/O interface of the MPI-2 standard. The file system implementation relies upon MPI for internal coordination and communication. This guarantees high performance and portability over a wide range of hardware and software cluster platforms. The internal architecture of the file system has been designed to allow rapid prototyping and experimentation of novel strategies for managing parallel I/O in a cluster environment. The discussion of the file system design and early implementation is completed with basic performance measures confirming the potential of the approach.
This paper describes measurement tests of Parallel Virtual File System (PVFS) and Network File System (NFS) over a commodity Linux cluster connected with Myrinet. PVFS stores a file by storing fixed-size stripes in ro...
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ISBN:
(纸本)0769515827
This paper describes measurement tests of Parallel Virtual File System (PVFS) and Network File System (NFS) over a commodity Linux cluster connected with Myrinet. PVFS stores a file by storing fixed-size stripes in round-robin fashion across I/O servers. The number and identity of I/O servers is selectable at execution time. Our evaluation includes testing with a varying number and configuration of servers and varying client request patterns. Results show that NFS performance is limited by the disk and network throughput of the server. Both NFS and PVFS are affected by the number of clients in the system and when the I/O nodes also serve as clients. For a fixed number of servers, PVFS performance is improved if the client nodes do not participate as servers. For the workloads tested, PVFS performance improves as the number of clients and servers increases to the maximum number of nodes on the system.
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