Alexandre Ceasar Tavares Vidal

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SUMMARY Scheduling parallel and distributed applications efficiently onto grid environments is a difficult task and a great variety of scheduling heuristics has been developed aiming to address this issue. A successful grid resource allocation depends, among other things, on the quality of the available information about software artifacts and grid(More)
Scheduling parallel and distributed applications efficiently onto grid environments is a difficult task and a great variety of scheduling heuristics have been developed aiming to address this issue. A successful grid resource allocation depends, among other things, on the quality of the available information about software artifacts and grid resources. In(More)
SPKI/SDSI is a flexible and extensible decentralized security model that provides authentication, confidentiality, and access control. However, SPKI/SDSI certification chains are not suitable for large scale, highly dynamic environments such as computational grids. This work extends the SPKI/SDSI model by including an opinion model based on subjective(More)
— The coordinated sharing of resources to address computational problems is a central issue in environments of Grid computing. Two important scenarios arise from this issue. First, as the amount of installed applications increases, the difficulty of finding an explicitly desired application for reuse also grows. Simultaneously, the possibilities of suitable(More)
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