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16 -20 May
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Wednesday, May 18 • 17:25 - 18:00
KubeFlux: An HPC Scheduler Plugin for Kubernetes - Claudia Misale, IBM T.J. Watson Research Center & Daniel Milroy, Lawrence Livermore National Laboratory

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Adoption of cloud technologies by high performance computing (HPC) is accelerating, and HPC users want their applications to perform well everywhere. While container orchestration frameworks provide advantages like resiliency, elasticity, and declarative management, they are not designed to enable application performance to the same degree as HPC workload managers and schedulers. In response to increased interest in scheduling flexibility, the Kubernetes community developed the Scheduling Framework to facilitate integration of new policies and schedulers. We present KubeFlux, a Scheduling Framework plugin based on the Fluxion open-source HPC scheduler developed at the Lawrence Livermore National Laboratory. We discuss uses for KubeFlux and compare the performance of an application scheduled by the Kubernetes default scheduler and KubeFlux. KubeFlux is an example of the rich capability that can be added to Kubernetes and paves the way to democratization of the cloud for HPC workloads.

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avatar for Claudia Misale

Claudia Misale

Staff Research Scientist, IBM T.J. Watson Research Center
Claudia Misale is a Staff Research Scientist in the Hybrid Cloud Infrastructure Software group at IBM T.J. Watson Research Center (NY). Her research is focused on Kubernetes for IBM Public Cloud, and also targets porting HPC applications to the cloud by enabling batch scheduling alternatives... Read More →
avatar for Daniel Milroy

Daniel Milroy

Computer Scientist, Lawrence Livermore National Laboratory
Daniel Milroy is a Computer Scientist at the Center for Applied Scientific Computing at the Lawrence Livermore National Laboratory. His research focuses on graph-based scheduling and resource representation and management for high performance computing (HPC) and cloud converged environments... Read More →

Wednesday May 18, 2022 17:25 - 18:00 CEST
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