Georgios Meditskos, Zoe Vasileiou, Anastasios Karakostas, Stefanos Vrochidis and Ioannis Kompatsiaris

4th Special Session on High-Performance Services Computing and Internet Technologies (@HPCS2020)

Abstract: Developing and deploying applications across heterogeneous HPC and Cloud infrastructures is a challenging task that requires significant effort and expert knowledge to describe the specifics of the application deployment. Abstraction plays an important role in this domain, since it eliminates any unnecessary details, promotes reusability and interoperability among different standards. In this short paper we present TOSCA-S, our effort to define a conceptually rich OWL 2 meta-model for capturing structural and semantic relationships in Cloud/HPC infrastructures and applications, fostering the management and sharing of information in the form of abstract interconnected RDF knowledge graphs. To this end, we combine the content design pattern of the DOLCE+DnS Ultralite ontology and advanced OWL 2 meta-modelling capabilities (punning) in order to semantically lift the TOSCA meta-model, one of the fastest growing standards in OASIS, and handle the specifics of the standard in a multi-tier manner. The framework is part of the SODALITE platform that aims to provide an optimised, highly resilient heterogeneous execution environment enabling operational transparency between Cloud and HPC infrastructures.