Speaker: Sebastian Oeste (Zentrum für Informationsdienste und Hochleistungsrechnen (ZIH) TU Dresden)

Title: Exclusive file systems for power users with BeeGFS and network NVMe storage

Abstract:

On most HPC systems, the parallel file system is a shared resource that is used from different compute jobs at the same time. While Jobs can run exclusively on compute nodes to not interfere compute resources from other jobs, the parallel file system remains a shared medium. It is possible that some power users with challenging I/O patterns are slowing down the entire file system.

This seminar talk will examine several solutions to provide power uses with exclusive file systems to isolate their I/O from the shared parallel file system. It will discuss various technologies such as exclusive shared parallel file systems with BeeGFS, on-demand file systems (BeeOND, GekkoFS) or provision of storage over NVME over fabric.

The talk will focus on the performance aspects of the different solutions and their administration effort.

Date and time: Tuesday, July 20, 2 p.m. – 3 p.m.

Short Bio:

Sebastian Oeste is a computer scientist and PhD student at the HPC and Performance Engineering Group at ZIH (TU Dresden). His research interests include parallel file systems and I/O. He is further interested in HPC systems software and performance analysis.