دانلود رایگان مقاله انگلیسی زیرساخت محاسبات ابری برای جامعه VPH - الزویر 2018

ABSTRACT

As virtualization technologies mature and become ever more widespread, cloud computing has emerged as a promising paradigm for e-science. In order to facilitate successful application of cloud computing in scientific research – particularly in a domain as security-minded as medical research –several technical challenges need to be addressed. This paper reports on the successful deployment and utilization of a cloud computing platform for the Virtual Physiological Human (VPH) research community, originating in the VPH-Share project and continuing beyond the end of this project. The platform tackles technical issues involved in porting existing desktop applications to the cloud environment and constitutes a uniform research space where application services can be developed, stored, accessed and shared using a variety of computational infrastructures. The paper also presents examples of application workflows which make use of the presented infrastructure – both internal and external to the VPH community.

7. DISCUSSION AND CONCLUSIONS

From the point of view of the features delivered by the VPH-Share cloud platform, we believe that the decision to create a hybrid IaaS offering – which is not specifically tailored to any particular application but is instead envisioned as an open infrastructure, capable of integrating additional types of software services as well as hardware infrastructures (cloud sites) – was justified and necessary. Over the course of the VPH-Share project we were faced with the need to deploy a vast array of dissimilar applications and services, including web applications, RESTful services, SOAP Web Services (with proper WSDL specifications), command-line tools, services exposing custom APIs on nonstandard ports, rich client applications with 3D GUIs (running under Linux as well as Windows), and more. That all of these application components can be successfully deployed, provisioned and utilized via the VPH cloud platform is testament to the platform’s robustness and extendibility.

The robustness of the presented architecture is also evidenced by the fact that a separate set of hardware and software resources can be provisioned to the VPH-DARE project [50] with no changes in the design or implementation of Atmosphere itself. The platform is now used in production mode for scientific and educational purposes by a growing user community, consisting not only of the original members of VPH-Share and associated projects, but also by researchers affiliated with former VPH-Share project partners.