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The 10th European Workshop on HPC Centre Infrastructures was hosted by PSNC and held in Poznań, Poland, between 20 and 23 May 2019. BSC, CSCS, CEA, LRZ, PDC-KTH, and PSNC have collaborated in the committee organising the workshop. The workshop, upon invitation only, with participants from Europe, America, Australia, and Asia, brought together experts from the HPC facility management side with experts from companies developing and bringing technologies to the market relevant for energy-efficient HPC and energy-efficient HPC facility management in particular. The workshop covered a broad range of topics, ranging from cooling technologies to the provisioning of electricity, and from overviews of standards and certification to the management, storage, and analyses of the large streams of heterogeneous metrics that are crucial for the efficient operation of modern HPC datacentres. Several presentations from supercomputing sites gave an insightful look into the “kitchen” of their facility management, explained the challenges they had faced and in what way those were tackled, and gave an overview into their roadmaps for the near future. The PRACE closed session, held at the end of the workshop, gathered attendees from PRACE Tier-0 and Tier-1 sites and gave the opportunity for exchanges between experts from the European supercomputing sites. This paper summarises the presentations and discussions held at the workshop and identifies major trends in the field of the HPC centre infrastructures. |