Invest in computing and storage resources

Principal Investigators (PIs) who need more capacity than is available in the free tier have three main options for investing in computing and storage resources.

1. Dedicated compute nodes

PIs may purchase dedicated CPU nodes or GPU nodes for exclusive use by their research group. ARC can host and support the hardware at no additional cost to the PI. In return, any excess capacity on the node that is not being used by the purchasing group may be made available to other users through the cluster’s preemptable queues.

Dedicated hardware can be a good fit for groups with steady, predictable workloads and a strong need for guaranteed access to specific machines. However, for many PIs, this option is not the most cost-effective way to expand computing capacity. Before purchasing or procuring any hardware, PIs must contact ARC through 4help to discuss requirements, compatibility, and support arrangements.

2. High-priority access

PIs may instead purchase high-priority access to shared cluster resources through a dedicated allocation. This option allows users to submit jobs under either free-tier allocations or paid allocations, depending on the priority and turnaround time they need.

This model is generally the most flexible and cost-effective choice. It allows a research group to use the shared cluster more efficiently while still receiving improved scheduling priority for important workloads. It is especially well suited for groups with variable usage patterns, evolving project needs, or a mix of short and long-running jobs.

3. Extended storage capacity

PIs may also purchase additional storage beyond the limits of the free tier. This is useful for projects that generate large datasets, maintain extensive intermediate files, or require long-term storage for active research workflows.

Additional storage can help teams scale their work without needing to move data off the cluster or constantly manage space constraints. As with computing resources, storage needs should be discussed with ARC to ensure the solution fits the group’s workflow and technical requirements.

Getting started

To participate in the investment program, contact ARC through 4help. We will help assess your needs and recommend the most appropriate option for your group. Costs are detailed in the cost center.