This document details the equipment resident in the Holland Computing Center (HCC) as of January 2018.
This document details the equipment resident in the Holland Computing Center (HCC) as of November 2018.
HCC has two primary locations directly interconnected by a set of four 10 Gbps fiber optic links (40 Gbps total). The 1800 sq. ft. HCC machine room at the Peter Kiewit Institute (PKI) in Omaha can provide up to 500 kVA in UPS and genset protected power, and 160 ton cooling. A 2200 sq. ft. second machine room in the Schorr Center at the University of Nebraska-Lincoln (UNL) can currently provide up to 100 ton cooling with up to 400 kVA of power. Brocade MLXe border routers, one in each location, provide both high WAN bandwidth and Software Defined Networking (SDN) capability. The Schorr machine room connects to campus and Internet2/ESnet at 100 Gbps while the PKI machine room connects at 10 Gbps.
HCC has two primary locations directly interconnected by a pair of 10 Gbps fiber optic links (20 Gbps total). The 1800 sq. ft. HCC machine room at the Peter Kiewit Institute (PKI) in Omaha can provide up to 500 kVA in UPS and genset protected power, and 160 ton cooling. A 2200 sq. ft. second machine room in the Schorr Center at the University of Nebraska-Lincoln (UNL) can currently provide up to 100 ton cooling with up to 400 kVA of power. One Brocade MLXe router and two Dell Z9264F-ON core switches in each location provide both high WAN bandwidth and Software Defined Networking (SDN) capability. The Schorr machine room connects to campus and Internet2/ESnet at 100 Gbps while the PKI machine room connects at 10 Gbps. HCC uses multiple data transfer nodes as well as a FIONA (flash IO network appliance) to facilitate end-to-end performance for data intensive workflows.
HCC's resources at UNL include two distinct offerings: Sandhills and Red. Sandhills is a linux cluster dedicated to general campus usage with 5,024 compute cores interconnected by low-latency InfiniBand networking. 175 TB of Lustre storage is complemented by 50 TB of NFS storage and 3 TB of local scratch per node.
HCC's resources at UNL include two distinct offerings: Sandhills and Red. Sandhills is a linux cluster dedicated to general campus usage with 5,472 compute cores interconnected by low-latency InfiniBand networking. 175 TB of Lustre storage is complemented by 50 TB of NFS storage and 3 TB of local scratch per node.
The largest machine on the Lincoln campus is Red, with 9,536 job slots interconnected by a mixture of 1, 10, and 40 Gbps ethernet. More importantly, Red serves up over 6.6 PB of storage using the Hadoop Distributed File System (HDFS). Red is integrated with the Open Science Grid (OSG), and serves as a major site for storage and analysis in the international high energy physics project known as CMS (Compact Muon Solenoid).
HCC's resources at PKI (Peter Kiewit Institute) in Omaha include Tusker, Crane, and Anvil. Tusker offers 3,712 cores interconnected with Mellanox QDR InfiniBand along with 523TB of Lustre storage. Each compute node is an R815 server with at least 256 GB RAM and 4 Opteron 6272 (2.1 GHz) processors.
HCC's resources at PKI (Peter Kiewit Institute) in Omaha include Tusker, Crane, Anvil, Attic, and Common storage. Tusker offers 3,712 cores interconnected with Mellanox QDR InfiniBand along with 523TB of Lustre storage. Each compute node is a Dell R815 server with at least 256 GB RAM and 4 Opteron 6272 (2.1 GHz) processors. Tusker and Sandhills are currently being retired and will be moved to the Walter Scott Engineering Center located in Lincoln consolidated into one, new Tusker cluster.
Crane debuted at 474 on the Top500 list with an HPL benchmark or 121.8 TeraFLOPS. Intel Xeon chips (8-core, 2.6 GHz) provide the processing with 4 GB RAM available per core and a total of 12,236 cores. The cluster shares 1.5 PetaBytes of Lustre storage and contains HCC's GPU resources.
Crane debuted at 474 on the Top500 list with an HPL benchmark or 121.8 TeraFLOPS. Intel Xeon chips (8-core, 2.6 GHz) provide the processing with 4 GB RAM available per core and a total of 12,236 cores. The cluster shares 1.5 PetaBytes of Lustre storage and contains HCC's GPU resources. We have since expanded the existing cluster: 96 nodes with new Intel Xeon E5-2697 v4 chips and 100GB Intel Omni-Path interconnect were added to Crane. Moreover, Crane has 21 GPU nodes with 57 NVIDIA GPUs in total which enables the most state-of-art research, from drug discovery to deep learning.
Anvil is an OpenStack cloud environment consisting of 1,520 cores and 400TB of CEPH storage all connected by 10 Gbps networking. The Anvil cloud exists to address needs of NU researchers that cannot be served by traditional scheduler-based HPC environments such as GUI applications, Windows based software, test environments, and persistent services.
Anvil is an OpenStack cloud environment consisting of 1,520 cores and 400TB of CEPH storage all connected by 10 Gbps networking. The Anvil cloud exists to address needs of NU researchers that cannot be served by traditional scheduler-based HPC environments such as GUI applications, Windows based software, test environments, and persistent services. In addition, a project to expand Ceph storage by 1.1 PB is in progress.
Attic and Silo form a near line archive with 1.0 PB of usable storage. Attic is located at PKI in Omaha, while Silo acts as an online backup located in Lincoln. Both Attic and Silo are connected with 10 Gbps network connections.
In addition to the cluster specific Lustre storage a shared project storage space exists between all HCC resources with 1.9PB capacity.
In addition to the cluster specific Lustre storage, a shared common storage space exists between all HCC resources with 1.9PB capacity.
These resources are detailed further below.
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