Virtual Infrastructure Twins: Software Testing Platforms for Computing-Instrument Ecosystems

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Science ecosystems are being built by federating computing systems and instruments located at geographically distributed sites over wide-area networks. These computing-instrument ecosystems are expected to support complex workflows that incorporate remote, automated AI-driven science experiments. Their realization, however, requires various designs to be explored and software components to be developed, in order to support the orchestration of distributed computations and experiments. It is often too expensive, infeasible, or disruptive for the entire ecosystem to be available during the typically long software development and testing periods. We propose a Virtual Infrastructure Twin (VIT) of the ecosystem that emulates its network and computing components, and incorporates its instrument software simulators. It provides a software environment nearly identical to the ecosystem to support early development and testing, and design space exploration. We present a brief overview of previous digital infrastructure twins that culminated in the VIT concept, including (i) the virtual science network environment for developing software-defined networking solutions, and (ii) the virtual federated science instrument environment for testing the federation software stack and remote instrument control software. We briefly describe VITs for Nion microscope steering and access to GPU systems.

Original languageEnglish
Title of host publicationAccelerating Science and Engineering Discoveries Through Integrated Research Infrastructure for Experiment, Big Data, Modeling and Simulation - 22nd Smoky Mountains Computational Sciences and Engineering Conference, SMC 2022, Revised Selected Papers
EditorsKothe Doug, Geist Al, Swaroop Pophale, Hong Liu, Suzanne Parete-Koon
PublisherSpringer Science and Business Media Deutschland GmbH
Pages155-172
Number of pages18
ISBN (Print)9783031236051
DOIs
StatePublished - 2022
EventSmoky Mountains Computational Sciences and Engineering Conference, SMC 2022 - Virtual, Online
Duration: Aug 24 2022Aug 25 2022

Publication series

NameCommunications in Computer and Information Science
Volume1690 CCIS
ISSN (Print)1865-0929
ISSN (Electronic)1865-0937

Conference

ConferenceSmoky Mountains Computational Sciences and Engineering Conference, SMC 2022
CityVirtual, Online
Period08/24/2208/25/22

Funding

This research is sponsored in part by the INTERSECT Initiative as part of the Laboratory Directed Research and Development Program and in part by RAMSES project of Advanced Scientific Computing Research program, and is performed at Oak Ridge National Laboratory managed by UT-Battelle, LLC for U.S. Department of Energy under Contract No. DE-AC05-00OR22725. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

FundersFunder number
U.S. Department of EnergyDE-AC05-00OR22725
Oak Ridge National Laboratory
Laboratory Directed Research and Development
UT-Battelle

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