Holland Computing Center David R. Swanson, Ph.D. Director

∑√ i=1 N i ⇒ ∫ √ N δi i

Computational and Data- Sharing Core Store and Share documents Store and Share data and databases Computing resources Expertise

Who is HCC? HPC provider for University of Nebraska System-wide entity, evolved over last 11 years Support from President, Chancellor, CIO, VCRED 10 FTE, 6 students

HCC Resources Lincoln: Tier-2 Machine Red (1500 cores, 400 TB) Campus clusters PrairieFire, Sandhills (1500 cores, 25TB) Omaha: Large IB cluster Firefly (4000 cores, 150 TB) 10 Gb/s connection to Internet2 (DCN)

Staff Dr. Adam Caprez, Dr. Ashu Guru, Dr. Jun Wang Tom Harvill, Josh Samuelson, John Thiltges Dr. Brian Bockleman (OSG development, grid computing) Dr. Carl Lundstedt, Garhan Attebury (CMS) Derek Weitzel, Chen He, Kartik Vedelaveni (GRAs) Carson Cartwright, Kirk Miller, Shashank Reddy (ugrads)

HCC -- Schorr Center 2200 sq. ft. machine room 10 full-time staff PrairieFire, Sandhills, Red and Merritt 2100 TB storage 10 gbps network

Three Types of Machines ff.unl.edu ::: large capacity cluster... more coming soon prairiefire.unl.edu // sandhills.unl.edu ::: special purpose cluster merritt.unl.edu ::: shared memory machine red.unl.edu ::: grid enabled cluster for US CMS (OSG)

prairiefire 50 nodes from SUN 2 socket, quad-core opterons (400 cores) 2 GB/core (800 GB) ethernet and SDR Infiniband SGE or Condor submission

Sandhills 46 fat nodes 4 socket opterons 32 cores/node (128 GB/node) 1504 cores total QDR Infiniband Maui/Torque or Condor submission

Merritt 64 itanium processors 512 GB RAM shared memory NFS storage (/home, /work) PBS only, interactive for debugging only

Red Open Science Grid machine part of US CMS project 240 TB storage (dCache) over 1100 compute cores certificates required, no login accounts

HCC -- PKI 1800 sq. ft. machine room (500 kVA UPS + generator) 2 full-time staff Firefly 150 TB Panasas storage 10 gbps network

Firefly Opteron cores 150 TB Panasas storage Login or grid submissions Maui (PBS) Infiniband, Force10 GigE

TBD Opteron cores 400 TB Lustre storage Login or grid submissions Maui (PBS) QDR Infiniband, GigE

First Delivery...

Last year’s Usage Approaching 1 Million cpu hours/week

HCCC Cloud Resources Built on Open Stack Able to run Windows code

Resources & Expertise Storage of large data sets (2100 TB) High Performance Storage (Panasas) High bandwidth transfers (9 gbps, ~50 TB/day) 20 gbps between sites, 10 gbps to Internet2 High Performance Computing: ~10,000 cores Grid computing and High Throughput Computing

Usage Options Shared Access Free Opportunistic Storage limited Shell or Grid deployment Priority Access

Usage Options Priority Access Fee assessed Reserved queue Expandable Storage Shell or Grid deployment

Computational and Data- Sharing Core Will meet computational demands with a combination of Priority Access, Shared, and Grid resources Storage will include a similar mixture, but likely consist of more dedicated resources Often a trade-off between Hardware, Personnel and Software Commercial Software saves Personnel time Dedicated Hardware requires less development (grid protocols)

Computational and Data- Sharing Core Resource organization at HCC Per research group -- free to all NU faculty and staff Associate quotas, fairshare or reserved portions of machines with these groups /home/swanson/acaprez/... accounting is straightforward

Computational and Data- Sharing Core Start now - facilities and staff already in place It’s free - albeit shared Complaints currently encouraged (!) Iterations required

More information David Swanson: (402) K Schorr Center /// 158H PKI /// Your Office Tours /// Short Courses

Sample Deployments CPASS site ( DaliLite, Rosetta, OMMSA LogicalDoc ( )