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Cost model

Free Baseline Service

The primary element of the CARC service model is baseline service provided to UNM main campus users, including faculty, staff, students, and collaborators, free of charge. This baseline defines the minimum level of service CARC guarantees or users, but users may use amounts greater than this baseline subject to system availability.

The goals of this baseline are to (1) provide researchers guaranteed access to significant computational resources, (2) guide the acquisition of CARC institutional resources to support this baseline, and (3)  provide researchers with guidance on when their needs are significant enough that they should consider purchasing dedicated computational or storage resources to support their research. CARC does not automatically throttle research project usage to this baseline, but CARC staff will request researchers to reduce usage to this baseline if systems are approaching compute or storage capacity.

The expectation is that the vast majority of projects and users will not need this level of computational resources, but the baseline service is defined to be generous enough to support both solo investigators with modest computational needs and large research labs with significant computational needs. The storage baseline is somewhat less generous simply because, unlike compute nodes, storage cannot easily be shared. In general, only users with significant storage needs or small groups with extreme computational needs are likely to consistently exceed this baseline.

While CARC does not cap research group usage to this baseline, users and research groups who are consistently above this baseline are at risk of having their research delayed or impinged due to meeting or exceeding CARC resource capacity. In this case, these researchers should consider purchasing dedicated resources to support their research.


Using the CARC cost model

The cost model is to provide estimates of the cost of services above and beyond our baseline, free service, for nodes in our Taos condo cluster. If you are not sure if you need to use the cost model, please contact us for assistance.

Service is the cost of CARC staff required to install and administer the purchase.

Capital hardware is the cost of major equipment, and is excluded from F&A. These rates can be used to estimate expenses, but this will be billed based on actual cost from the vendor(s).

Infrastructure is the cost of non-major equipment – things like racks, power supplies, and the like. Depending on the size of the purchase, some items in this category may be shared resources and are priced accordingly.