VIking will is approaching end of life. With the success of Viking the university has invested in new hardware. Viking2 will be bigger with more CPUs, more memory and more GPUs. In addition to this Viking2 will be moved to a lower than net zero data center to allow staff and students to complete their computational work sustainably. Viking2 will be located in Sweden taking advantage of lower energy costs and the data centers excellent sustainability credentials.

The aim is to have Viking2 online end of September 2023.

	Viking2	Viking1
Compute node only CPU cores	12,864	7000
Total standard compute nodes	134	170
Compute node generation	AMD EPYC3	Intel Xeon 6138
Cores per processor	48	20
Number of processors per node	2	2
Memory per compute node	512 GB	127 nodes 192GB
		33 nodes 384 GB
High memory node	2x 2TB	2 x 768 GB
High memory node	1x 4 TB	2 x 1.5 TB
GPUs	48 A40	8 V100s
	12 H100
Scratch (PB)	1.5	2.5
Warm storage (PB)	2.0
Usable NVME storage (TB)	215	48
Interconnect type	100Gb OPA	100Gb Mellanox

Supporting Statements for grant submission

If you are putting together a grant application you can sometimes add in-kind contributions from the University. Viking2 has yet to be fully costed but Viking1 was costed at 1p per cpu hour, the power price is not dissimilar for Viking2 .

Short statement

The University of York has invested £2.5 million in a new high performance compute cluster. The new “viking” cluster is a larger replacement for the current Viking HPC system. Viking2 has been designed to meet a wide mix of research requirements. This new system will also be housed in EcoDatacentre in Sweden, taking advantage of their negative carbon sustainability practices and 100% renewable energy sources. Heat generated by the datacentre is re-used to dry wood pellets for district heating.

It is made available to all researchers, including students, and is free of charge to use. It provides:

12,864 AMD cores
48 A40 and 12 H100 GPUs
1.5PB of high performance working storage
215 TB NVME storage
High performance networking
The ability to burst into public cloud services

The technical facility is backed up with staff support, including central and departmentally embedded posts, providing assistance with usage of HPC facilities, data management, research software engineering and code optimisation.

Researchers also have access to the full range of centrally provided services, detailed in the service catalogue at https://www.york.ac.uk/it-services/services/

Longer statement

The University of York is committed to enhancing its position as one of the world’s premier institutions for inspirational and life-changing research. The University 2030 strategy has four key objectives one of which is sustainability and hitting net zero by 2030. Supporting research is one of the key programs in the IT strategy, alongside Departmental and Faculty IT, and as such we are able to offer a number of services to academics. The University has recently invested in £2.5 million towards a new HPC facility, which will be larger than it's very successful predecessor (~13K cores) and will provide academics with the latest computing infrastructure for all their computational workloads. This investment is indicative of the drive to give researchers access to the best facilities possible, and has the potential to be a trans-formative resource. As part of this investment we also offer a number of free courses in popular programming languages and help and support to access these facilities. In addition to this the new Viking cluster will be housed in Sweden, taking advantage of their negative carbon sustainability practices and 100% renewable energy sources. Heat generated by the datacentre is re-used to dry wood pellets for district heating

Additional support is provided through storage for datasets, where we provide 1-2TB of free storage for all principal investigators. We will also be building a cost effective storage solution for large datasets. Recognising the importance of impact in research, we also provide a dynamic web hosting platform, and virtual machines, free of charge, allowing research to be published to the web in dynamic and interesting ways, and allowing the public and researchers to interact with it.

In addition to providing commodity and research services, we also have a team dedicated to research computing. In addition to a Head of Research Computing, based centrally, we have an embedded team comprised of two research software engineers and an HPC Linux expert. These staff are based in Biology, Physics and Chemistry, but as part of a wider strategy they support research across the institution, and are actively involved in central HPC development.

A full list of central services is provided in the service catalogue, available at https://www.york.ac.uk/it-services/services/

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