Main Page

Rhasatsha High Performance Computer

rhasatsha: (the rha is pronounced as gaan in Afrikaans) a clever person/object; highly intelligent; something that acts promptly; a wide awake person/object who/that is always on the spot; a versatile person/object that can tackle anything successfully.

The cluster currently has the following specifications.

General information

Feel free to contact Charl Möller (x9490) with any queries regarding the cluster.

• HOWTO register
• HOWTO login
• HOWTO submit jobs
• HOWTO check up on jobs
• Useful commands

• Common errors

• Getting Started

Monitoring tools

• Ganglia Cluster Monitor (only available on campus)
• XDMoD Portal (only available on campus)

Specifications

The HPC currently has the following compute specifications:

• 19x 8-core Intel Xeon E5440 with 16GB RAM
• 1x 24-core Intel Xeon X5650 with 24GB RAM
• 1x 16-core Intel Xeon X5550 with 48GB RAM, dual NVIDIA GT200GL
• 17x 48-core AMD Opteron 6172 with 96GB RAM, Infiniband interconnect
• 2x 64-core AMD Opteron 6274 with 128GB RAM, Infiniband interconnect

The total is 1136 available cores.

Job priorities

The HPC currently has 3 queues into which jobs are automatically divided based on number of cores requested.

• sml - queue for small jobs (up to 4 cores)
• med - queue for medium jobs (up to 8 cores)
• lrg - queue for large jobs (more than 8 cores)

At any given time every queue is only allowed a maximum number of cores to ensure small, quick jobs aren't unnecessarily blocked by large, long running jobs.

• sml - unlimited
• med - 380 cores
• lrg - 900 cores

HOWTOs for different programs

R

Acceptable usage

Hierdie stelsel mag alleen gebruik word vir bona fide akademiese doeleindes. Enige poging dit vir konsultasiewerk of enige kommersiële doeleindes te gebruik, kan veroorsaak dat die gebruiker permanent verbied word om die stelsel te gebruik.

This system may only be used for bona fide academic work. Any effort to use it for consultancy work or any other commercial purpose may lead to the permanent banning of the user from the system.

Citations

We require an acknowledgement in any thesis, paper, publication or presentation that references results computed on this system. In addition we would like to be able to reference these published works.

Suggested form of acknowledgement:

Computations were performed using the University of Stellenbosch's Rhasatsha HPC: http://www.sun.ac.za/hpc