Research Computing News

Lewis Fall 2018 Expansion

Sept. 17, 2018 — We just completed the expansion and regular maintenance of the Lewis cluster by 33 nodes (1320 next generation cores) and now have a total of 6064 cores in the Lewis cluster.  With these nodes comes an increased capacity to run large parallel MPI with the new 100Gbps EDR Infiniband fabric connecting these nodes.  The new…

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Lewis Maintenance Window – September 4, 2018

Aug. 21, 2018 — The nodes are here and ready to be added to the cluster! The electricians are finishing the wiring to handle the additional power that the new nodes require (similar to 12 dryer plugs!). In addition to adding 32 new nodes, we will also be upgrading our cluster storage network cables and moving some equipment around…

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Research Computing Support Service – Summer 2018 Update

June 5, 2018 — Welcome to the summer 2018 update. Spring was another busy semester with a number of upgrades and changes detailed below. We will be ordering the new rack in the next few days (see the update for details), and there is still time to invest. If you are interested, please contact us at For HPC…

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May Maintenance Complete

May 29, 2018 — The May 2018 maintenance window is complete. We updated the internal cluster networking and networking services. We changed a number of SLURM settings to meet the changing needs of the cluster, the most notable being that the General partition can run jobs up to four hours and support for SLURM licenses (Matlab, SAS). The important…

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May Maintenance

May 1, 2018 — The Lewis cluster and Teaching cluster will undergo maintenance starting at 6:00 a.m. on Tuesday, May 15. We will be applying security updates as well as upgrading our configuration and networking infrastructure. The maintenance outage is expected to last several days. To stay updated on the progress of the outage, please subscribe to our announcement…

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Storage Upgrade Complete

Jan. 16, 2018 — After many months of work and planning, the HPC storage upgrade is complete.  There has been a massive increase in performance for individual jobs and for overall cluster. Initial testing indicates that individual file read/write speeds are going from 10’s of MB/s to 1000’s of MB/s (a 10x-100x speedup for most workloads). We have also…

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Storage Upgrade January 9 – FILES IN /SCRATCH WILL BE DESTROYED ON January 9, 2018

Jan. 3, 2018 — RCSS Users, **ALL FILES IN /SCRATCH WILL BE DESTROYED ON January 9, 2018** We will be performing the storage cut-over on Tuesday, January 9 (starting at 12:01 a.m.), ahead of schedule.  We were able to complete a complete first copy of the storage to the new filesystem.  Since we are ready well ahead of schedule,…

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RCSS Winter break hours / support update.

Dec. 21, 2017 — RCSS Users, Given that the campus is closed over the break we will have reduced support during this time.  We will monitor support and the cluster over break but may not respond to your emails until we return on January 2nd. As you may have noticed we have successfully moved to a ticketing system.  This…

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Research Linux Systems Administrator Position at the University of Missouri

Dec. 6, 2017 — The University of Missouri is searching for a Research Linux Systems Administrator to fill a new position that will work closely with researchers to build, customize, secure, and support Linux systems to advance research activities on campus. As a member of the team you will work on a broad range of projects internally and across campus with opportunities to specialize in a number of areas, which includes science gateways (web servers for the dissemination of research), scientific Linux workstations, interactive computing (Jupyter notebooks and Kubernetes), scientific workflows, and scientific software support.

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HPC storage equipment

Nov. 20, 2017 — The last of the HPC storage equipment arrived last week while some of our team was at SuperComputing ( As indicated earlier, there will be a complete outage on Tuesday December 5th to install the new HPC storage system (zLustre) and to upgrade and patch the cluster.  We will be upgrading the job scheduler (SLURM) so there is a…

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