Contribution to a conference proceedings/Contribution to a book

FZJ-2026-01050

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Unlocking the compute continuum: Scaling out from cloud to HPC and HTC resources

Ciangottini, D. (Corresponding author) ; Spiga, D. ; Memon, A. S.FZJ* ; Manzi, A. ; Filipcic, A. ; Troja, A. ; Fanzago, F. ; Bianchini, G. ; Sgaravatto, M. ; Prica, T. ; Boccali, T. ; Tedeschi, T.

2025
EDP Sciences Les Ulis

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Please use a persistent id in citations: doi:10.1051/epjconf/202533701296  doi:10.34734/FZJ-2026-01050

Abstract: In a geo-distributed computing infrastructure with heterogeneous resources (HPC and HTC and possibly cloud), a key to unlock an efficient and user-friendly access to the resources is being able to offload each specific task to the best suited location. One of the most critical problems involves the logistics of wide-area, multi-stage workflows that move back and forth between multiple resource providers. We envision a model where such a challenge can be addressed enabling a “transparent offloading” of containerized payloads using the Kubernetes API primitives creating a common cloud-native interface to access any number of external hardware machines and type of backends. Thus we created the interLink project, an open source extension to the concept of Virtual-Kubelet with a design that aims for a common abstraction over heterogeneous and distributed backends. interLink is developed by INFN in the context of interTwin, an EU funded project that aims to build a digital-twin platform (Digital Twin Engine) for sciences, and the ICSC National Research Center for High Performance Computing, Big Data and Quantum Computing in Italy. In this talk we first provide a comprehensive overview of the key features and the technical implementation. We showcase our major case studies, such as the scale-out of an analysis facility, and the distribution of ML training processes. We focus on the impacts of being able to seamlessly exploit world-class EuroHPC supercomputers with such a technology.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 5112 - Cross-Domain Algorithms, Tools, Methods Labs (ATMLs) and Research Groups (POF4-511) (POF4-511)
2. interTwin - An interdisciplinary Digital Twin Engine for science (101058386) (101058386)

Appears in the scientific report 2025; 2025

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