the highlights of the 7th ieee/acm international conference on grid computing held in Barcelona on September 28-29, 2006 were presented. the program for this conference covered all areas of gridcomputing research, wh...
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the highlights of the 7th ieee/acm international conference on grid computing held in Barcelona on September 28-29, 2006 were presented. the program for this conference covered all areas of gridcomputing research, which include Internet-based computing models, applications, including eScience and eBusiness applications, middleware and toolkits, and virtual Instrumentation. One of the paper presented an approach to grid scheduling that focused in the global cost optimization problem rather than in the details of individual applications taking into account the entire workload and dynamically adjusting to the varying service demands. Another contribution presented the design of a desktop grid implemented over a modified Peer-to-Peer architecture. Another paper summarized ongoing research and recent results on the development of flexible access control infrastructure for complex resource provisioning in grid-based collaborative applications and on-demand network services provisioning.
the proceedings contain 49 papers. the topics discussed include: QoS-constrained stochastic workflow scheduling in enterprise and scientific grids;resource discovery techniques in distributed desktop grid environments...
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ISBN:
(纸本)1424403448
the proceedings contain 49 papers. the topics discussed include: QoS-constrained stochastic workflow scheduling in enterprise and scientific grids;resource discovery techniques in distributed desktop grid environments;overhead analysis of grid workflow applications;workflow global computing with YML;run-time optimization of grid workflow applications;a gridFTP overlay network service;YA: fast and scalable discovery of idle CPUs in a P2P network;fault-aware scheduling for bag-of-tasks applications on desktop grids;QoS support for workflows in a volatile grid;using workflow for dynamic security context management in grid-based applications;flexible and secure logging of grid data access;multi-replication with intelligent staging in data-intensive grid applications;a QoS-aware heuristic algorithm for replica replacement;and operating system support for space application in grid storage systems.
the following topics are dealt with: gridcomputing; grid workflow; data services; P2P grid scheduling; data resource allocation; metadata; grid security; grid data streaming; and messaging
the following topics are dealt with: gridcomputing; grid workflow; data services; P2P grid scheduling; data resource allocation; metadata; grid security; grid data streaming; and messaging
the development of the grid has opened new possibilities for scientists and engineers to execute large-scale modeling experiments. this has stimulated the generation and development of tools for the creation and manag...
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ISBN:
(纸本)9781424403431
the development of the grid has opened new possibilities for scientists and engineers to execute large-scale modeling experiments. this has stimulated the generation and development of tools for the creation and management of complex computing experiments in the grid. Among these, tools for the automation of the programming of experiments play a significant role. In this paper we present GriCoL, which we propose as a simple and efficient language for the description of complex grid experiments.
Data-intensive grid applications need access to large datasets that may each be replicated on different resources. Minimizing the overhead of transferring these datasets to the resources where the applications are exe...
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ISBN:
(纸本)9781424403431
Data-intensive grid applications need access to large datasets that may each be replicated on different resources. Minimizing the overhead of transferring these datasets to the resources where the applications are executed requires that appropriate computational and data resources be selected. In this paper, we introduce a heuristic for the selection of resources based on a solution to the Set Covering Problem (SCP). We then pair this mapping heuristic withthe well-known MinMin scheduling algorithm and conduct performance evaluation through extensive simulations.
the execution of workflow applications on the grid is a complex issue because of its dynamic and heterogeneous nature. While the grid provides good potential for achieving high performance, it also introduces a broad ...
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ISBN:
(纸本)9781424403431
the execution of workflow applications on the grid is a complex issue because of its dynamic and heterogeneous nature. While the grid provides good potential for achieving high performance, it also introduces a broad set of unpredictable overheads and possible failures. In this paper we present new methods for scalable and fault tolerant coordination of workflows in dynamic grid environments, including partitioning, static and dynamic optimisation, as well as Virtual Single Execution Environment, incorporated into the ASKALON distributed workflow Enactment Engine. We demonstrate the effectiveness of our methods on a material science workflow application executed in a real-world grid environment.
Main characteristics of large-scale, geographically distributed grid systems are resource heterogeneity and network latency. In this paper, we use queuing network models to analyze data-parallel grid applications and ...
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ISBN:
(纸本)9781424403431
Main characteristics of large-scale, geographically distributed grid systems are resource heterogeneity and network latency. In this paper, we use queuing network models to analyze data-parallel grid applications and we show the effects of resource heterogeneity, communications delays, network bandwidths and synchronization overheads on the application-level performance. the proposed models rely on the statistical pattern of computation, communication, and I/O operations in the parallel applications, as well as on measurable infrastructure characteristics. We finally show how the high variability in the execution and communication times must be considered when modeling applications on geographically distributed grid infrastructures.
In this paper we propose a systematic approach to performance analysis of workflow applications on the grid. We introduce an ideal model for the workflow execution time and explain the difference to the real measured ...
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ISBN:
(纸本)9781424403431
In this paper we propose a systematic approach to performance analysis of workflow applications on the grid. We introduce an ideal model for the workflow execution time and explain the difference to the real measured times based on a hierarchy of performance overheads for gridcomputing. We describe how to systematically measure and compute the overheads from individual activities to entire workflow applications. We adjusted well-known parallel processing metrics to the scope of gridcomputing, comprising speedup and efficiency. We have implemented and largely automatised our analysis approach in the context of the ASKALON grid application development and computing environment. We present experimental results that show detailed overhead analysis of two real-world workflow applications executed in a national grid environment.
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