The Research Computing Group’s A&FS reviewed recharge rates are authorized to be charged to contracts and grants. Our rates are designed to be easy to incorporate into grant proposals and all of the money recovered from rates is reinvested into HPC resources and salaries. Under certain circumstances, we can also charge equipment funds. Contact us for more information.
Principles of a HPC rate structure
- Should incentive labs to contribute funds to the system(s) in return for access to the system proportional to their anticipated usage.
- Should encourage the proper use of the system and discourage misuse.
- Should strive for a targeted efficiency for both CPU/MEMORY and storage.
- Should be time/resource bound. Does not extend forever.
- Should be simple to describe and easy to incorporate into grant submissions.
- Should be transparent.
Examples of rates which violate 1, or more, of the above principles.
- A cost per user rate, would violate principle #2 (Should encourage the proper use of the system and discourage misuse) as such a rate would encourage account sharing within a lab in order to provide access to a new user without paying associated costs.
- A flat rate annual account (for a lab) would violate principle #1 as a flat rate would not be proportional to the labs usage of the system. Heavy users are subsidized by in frequent users.
There are three primary costs associated with maintaining a HPC system.
- Cost of hardware (nodes/cpus/memory/disk drives/etc.)
- Cost of infrastructure (firewall/switches/head node/controllers/etc.)
- Cost of FTE and support (people to maintain the infrastructure, train users, and support of those people [ex. attendance to annual national HPC meeting])
All rates within the core facility are a combination of the above costs, a portion, or all of which, may include subsidize by various entities either because some costs are difficult to recover through the recharge model and/or to encourage a certain type of investment
The CRCF Bioinformatics Core HPC Rate Model
Compute access (dedicated):
Dedicated compute access is supplied through exclusive lab login node. Labs login to the dedicated resource which has access to the submit jobs to the cluster, and not onto the common login node. A lab can control who has access to the dedicated node via the Bioinformatics HPC computing portal. These nodes allow for immediate, or specialized (software) needs. Login nodes are built to spec (5-year warranty); because login nodes aren’t socialized, there is $2000/administration fee/year (100% FTE cost).
Compute access (shared):
A financial commitment to “system priority” ($1 = 1000 priority points, minimum buy-in is $5K) grants proportional priority access to the whole system. The rate assumes an efficiency(load) of 80% and covers hardware/infrastructure/warranty (~100% of rate) and FTE administration costs are 100% subsidized by ACCD funds to incentivize sharing of resources. Labs should buy in at their approximate expected usage, but can add in additional priority at any time (request via the portal), if they underestimated their usage, or their usage pattern changes. Priority points last for 5 years, the core helps with grant writing to help a lab continue contributing to the system and overall sustainability of the cluster. At the end of 5 years the priority is removed (step function), the lab is not removed from the system, but rather the priority is reduced to 0 (lowest priority) for 1 year, assuming additional priority hasn’t been purchased in the interim.
Compute access (temporary):
The Bioinformatics Core does not have temporary compute access. However, however we occasionally grant graduate student pilot projects on a case by case basis.
- $100/Tb/Year Primary, not Backed up.
- $150/Tb/Year Primary plus back up copy at the University Data Center.
- Discounted rate applies to requests >= 100Tb ($167/Tb/3-Years)
Systems Administration hourly rate:
A rate of $151/hour to cover associated FTE costs for special projects.
Bioinformatics Core HPC resources are only available to UC Davis Investigators.
|Cost of Terabyte of Primary Storage||$100/yr|
|Cost of Terabyte of Backup Storage||$50/yr|
|Priority on the shared computing system (1000 priority points) - 5 years||$1|
|Login Node - 5 year warranty||inquire|
|Administration of a non-shared resource||$2000/year|