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In the past, virtualisation, and with it the move toward the cloud, has had a strong influence on the ICT (Information Communication Technology) sector, and now seems set to revolutionise the telecommunications sector as well. The virtualisation into software artefacts of functions that would usually be deployed as hardware has come to be known as Network Function Virtualisation (NFV), and the European...
A cloud provider provides, on-demand, physical computing resources to clients. It enables clients to improve their computing delivered resources in virtual machines. However, the cloud provider faces major problems impacting its correct operation. One of these problems is that a cloud provider cannot deliver more resources when it has not enough resources during peak hours. Another problem related...
This column completes a two-part exploration into features of application programming interfaces (APIs) that are useful in clouds. The discussion contrasts APIs with other types of interfaces and describes variations on protocols and calling methods, giving examples from physical hardware control to illustrate important features of cloud API design.
Many cloud computing platforms adopt visualization technology to provide cloud services. To achieve high computing performance, many data parallel frameworks are adopted to run the jobs. The job is broken into pieces and farmed out to virtual machines (VMs) to process in parallel. The responses from these VMs are aggregated to produce the final result with concurrent flows. However, the concurrent...
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