LiU Local Compute 2023

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This Round is Open for Proposals

Access to Sigma @ NSC for LiU researchers.

This round is open for proposals until 2024-01-01 00:00.

More information about this round is available at https://www.nsc.liu.se/access/applying/#liu-local.

Resource	Centre	Upper Limit	Available	Unit	Note
Sigma	NSC	—	2 488	x 1000 core-h/month
Sigma, sigma.nsc.liu.se, runs a CentOS 7 version of the NSC Cluster Software Environment. This means that most things are very familiar to Gamma users. During 2023 the operating system will be upgraded to Rocky Linux 9. See https://www.nsc.liu.se/support/systems/sigma-os-upgrade/ for more information. You still use Slurm (e.g sbatch, interactive, ...) to submit your jobs. ThinLinc is available on the login node. Applications will still be selected using "module". All Sigma compute nodes have 32 CPU cores. There is 104 "thin" nodes with 96 GiB of primary memory (RAM) and 4 "fat" nodes with 384 GiB. Each compute node have a local SSD disk where applications can store temporary files (approximately 200GB per node). All Sigma nodes are interconnected with a 100 Gbps Intel Omni-Path network which is also used to connect the existing storage. The Omni-Path network work in a similar way to the FDR Infiniband network in Gamma (e.g still a fat-tree topology). Sigma have a capacity that exceeds the current computing capacity of Gamma. Sigma was made available to users on August 23, 2018.

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