Holland Computing CenterDavid R. Swanson, Ph.D.

Director

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 SUN2 socket, quad-core opterons (400 cores)2 GB/core (800 GB)ethernet and SDR

InfinibandSGE or Condor submission

Sandhills46 fat nodes

4 socket opterons32 cores/node (128

GB/node)1504 cores totalQDR Infiniband

Maui/Torque or Condor submission

Merritt64 itanium processors

512 GB RAM shared memoryNFS storage (/home,

/work)PBS only, interactive for debugging only

RedOpen Science Grid machinepart of US CMS project240 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

Firefly4000+ Opteron cores

150 TB Panasas storageLogin or grid submissionsMaui (PBS)

Infiniband, Force10 GigE

TBD 5800+ Opteron cores

400 TB Lustre storageLogin or grid submissionsMaui (PBS)

QDR Infiniband, GigE

First Delivery...

Last year’s Usage

Approaching 1 Million cpu hours/week

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

•http://hcc.unl.edu

•dswanson@cse.unl.edu

•hcc-support@unl.edu

•David Swanson: (402) 472-5006

•118K Schorr Center /// 158H PKI /// Your Office

•Tours /// Short Courses

Sample Deployments

•CPASS site (http://cpass.unl.edu)

•DaliLite, Rosetta, OMMSA

•LogicalDoc ( https://hcc-ngndoc.unl.edu/logicaldoc/ )