Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/4800
Título: Enabling Global Experiments With Interactive Reconfiguration And Steering By Multiple Users
Autor: Assunção, Luís Manuel da Costa
Cunha, José C.
Orientador: ASSUNÇÃO, Luís Manuel da Costa; CUNHA, José C. – Enabling global experiments with interactive reconfiguration and steering by multiple users. In Procedia Computer Science. Amsterdam : Elsevier Science BV, 2014. ISSN: 1877-0509. Vol. 29, p. 2137-2144.
Palavras-chave: Scientific Workflows
Interactive Reconfigurations and Steering
Global Experiments on Cloud
Data: 2014
Editora: Elsevier Science BV
Resumo: In global scientific experiments with collaborative scenarios involving multinational teams there are big challenges related to data access, namely data movements are precluded to other regions or Clouds due to the constraints on latency costs, data privacy and data ownership. Furthermore, each site is processing local data sets using specialized algorithms and producing intermediate results that are helpful as inputs to applications running on remote sites. This paper shows how to model such collaborative scenarios as a scientific workflow implemented with AWARD (Autonomic Workflow Activities Reconfigurable and Dynamic), a decentralized framework offering a feasible solution to run the workflow activities on distributed data centers in different regions without the need of large data movements. The AWARD workflow activities are independently monitored and dynamically reconfigured and steering by different users, namely by hot-swapping the algorithms to enhance the computation results or by changing the workflow structure to support feedback dependencies where an activity receives feedback output from a successor activity. A real implementation of one practical scenario and its execution on multiple data centers of the Amazon Cloud is presented including experimental results with steering by multiple users.
Peer review: yes
URI: http://hdl.handle.net/10400.21/4800
DOI: 10.1016/j.procs.2014.05.198
ISSN: 1877-0509
Aparece nas colecções:ISEL - Eng. Elect. Tel. Comp. - Comunicações

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