Virtual Framework for Science Federations with Instruments Access and Control

Conference · Thu Apr 01 04:00:00 EDT 2021

OSTI ID:1817424

Rao, Nageswara ^[1]; Al Najjar, Anees ^[1]; Foster, Ian ^[2]; Liu, Zhengchun ^[2]; Kettimuthu, Raj ^[2]

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1. ORNL
2. Argonne National Laboratory (ANL)

Experimental science workflows require federations of geographically dispersed science instruments and computing systems connected over a wide-area network. We develop a Virtual Infrastructure Twin (VIT) framework, which is a digital twin of the physical infrastructure that utilizes network virtualization and containerization technologies to support the development and testing of science workflow codes. Using VIT, we illustrate the access to instruments via EPICS system and the orchestration of containerized computations across federation computing systems. We also present a machine learning method to convert VIT throughput measurements to closely match the corresponding physical testbed measurements.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE; USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1817424
• Country of Publication: United States
• Language: English