Integration and Combined Use of Distributed Computing Resources with Everest

Distributed computing infrastructures (DCI) play an important role in modern research by enabling the use of multiple computing resources for solving complex problems. Despite the expansion of large-scale DCIs, the rapid integration of resources into ad-hoc infrastructures for small research projects or personal use still remains a challenge. The paper describes the integration and combined use of resources with Everest, a web-based distributed computing platform. In contrast to existing solutions, Everest follows the PaaS model and can be used remotely by multiple users to seamlessly run computations on arbitrary combinations of external resources attached by users. The integration of Everest with standalone resources and EGI grid is described. The presented approach is demonstrated by running real-world applications on ad-hoc infrastructures consisting of resources of different types.