You can access the Roar system either by purchasing an allocation or by using the “open queue.” The open queue is a free, shared resource for all researchers, whereas paid allocations have varying prices and include access to varying resources (view rates).
Want to try out an allocation before you buy? Request a 30-day trial of Roar using the “Trial Allocation” button on the right sidebar.
A paid allocation lets you access as many basic-, standard-, or high-memory compute cores as you need for your research, within a time frame that you choose. With a fully executed Service Level Agreement (or SLA), any jobs that you submit within your allocation limit are guaranteed to start within one hour of when you submit them.
Other benefits include:
- No wall time limit
- Burst capability (use up to 4x your allocated compute for a limited period)
- 5 TB of Group (active) storage with minimum purchase
With a paid allocation, you can choose to purchase access to several different core types:
- Basic Core
- Standard Core
- High-memory Core
- GPUs (two types—NVidia Tesla K80s and P100s)
- Virtual Basic Cores, part of ICDS’s High-Performance Research Cloud (HPRC)
You can also purchase additional storage or archive storage for your research group.
To request a paid allocation, contact Derek Leydig.
Learn more about services and rates (requires Penn State login).
The Roar Open Queue
Researchers who do not have a paid allocation can access Roar through the open queue. All you need is an ICDS account. If you don’t have one, request an account here.
Jobs submitted to the open queue run using idle Roar computing resources. That means the jobs you submit to this queue do not count against your paid allocation.
- All Roar users have equal priority for open queue access
- Open queue jobs have no guaranteed start time
- Jobs and interactive sessions will start and run only when sufficient idle cores are available
- Jobs may be suspended or pre-empted if cores are needed for jobs on other queues
For each Roar account, the open queue has these maximum limits:
- 100 jobs pending
- 100 cores executing jobs at any given time
- 48-hour job wall-times
- 24-hour interactive session durations
The video above provides a brief introduction to using the open queue. If you have any questions about using the open queue or submitting jobs, please contact firstname.lastname@example.org.