Zhili Cheng

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In order to deal with telescope data more systematically and flexibly, this paper proposes a grid middleware pipeline system PMGrid based on serviceoriented architecture (SOA) for efficient telescope data processing. This system allows users to dynamically compose data process application as a Pipeline Virtual Service (PVS) using existing services for their(More)
Based on the research of SLA, SNAP, MetaService and contractual computing service, a service level QoS mechanism and algorithm for astronomy data distribution and backup in grid environment is proposed. A weight based comparison method for different data services provided by data servers is described first. The method can choose suitable data servers under(More)
The virtualization technology is helpful to support grid QoS. A manual configuration method and an automatic configuration method are designed to build the virtual workspace environment based on virtualization technology. Both the MetaServices and the automatic configuration software are employed to establish the virtual workspace environment. For dynamic(More)
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