Credit Exchange and Calculator

Ready to calculate your credit exchange?

To use resources, you must “spend” your ACCESS Credits and exchange them for allocations on the resource or resources you want to use.

Allocations for Explore, Discover, and Accelerate projects are awarded in ACCESS Credits. ACCESS Credits are the “currency” used here to permit you a limited amount of resource use without requiring you to specify up front exactly which resources you will use. If it helps, an ACCESS Credit is set to be about one core-hour or 1 GB of storage. The amounts vary by resource, however. Because a GPU-hour delivers more computing, a GPU-hour will cost you more Credits, for example.

Also, remember that ACCESS Credits are issued in two increments: half upon initial project award and half after you submit a progress report. If you know that your total resource needs will exceed your initial project’s Credit limits, you can add your progress report to a request to upgrade to a project type with a larger Credit limit.

Finally, the total Credits available to a single funding award for its lifetime is the Accelerate ACCESS limit. For projects that need more than that amount, you will need to prepare a Maximize ACCESS request and enter that annual cycle.

Once you've got some ACCESS Credits in hand, you can submit an exchange request from the true My Projects page.

Resource providers may approve, modify, or decline an exchange based on whether the resource is appropriate for the proposed work or if the resource is too busy to take on more work.

ACCESS Credits are issued in two increments: half upon initial award and half after you submit a progress report. If you know that your total resource needs will exceed your initial project’s Credit limits, you can add your progress report to a request to upgrade to a project type with a larger Credit limit.

To show you how ACCESS Credits convert to resource-specific allocations, we have provided an Exchange Calculator. In the calculator, enter the number of ACCESS Credits you want to exchange and select a target resource—the calculator will show you the amount of units you would receive on that resource.

Each resource has a fixed exchange rate for ACCESS Credits. Most multicore compute resources are allocated in core-hours, unless they are GPU-based resources, in which case the units tend to be GPU-hours. Storage resources are usually allocated in gigabytes.

Units Target System
1,000ACCESS Credits
8,015Georgia Tech GaTech Hive Cluster
8,015IACS at Stony Brook Ookami
1,000Indiana Jetstream2 CPU
1,000Indiana Jetstream2 GPU
1,000Indiana Jetstream2 Large Memory
1,000Indiana Jetstream2 Storage
19Johns Hopkins University (Rockfish - GPU)
1,000Johns Hopkins University (Rockfish - Large Memory)
1,000Johns Hopkins University (Rockfish - Regular Memory)
1,001Kentucky Research Informatics Cloud (KyRIC) Large Memory Nodes
7NCSA DeltaAI
1,000NCSA Delta CPU (Delta CPU)
15NCSA Delta GPU (Delta GPU)
1,013NSF NCAR Derecho
15NSF NCAR Derecho-GPU
1Open Storage Network (OSN)
2,547OSG Open Science Pool
8,015PSC Anton 2 Special-Purpose Supercomputer for Molecular Dynamics (PSC Anton 2)
112PSC Bridges-2 Extreme Memory (PSC Bridges-2 EM)
19PSC Bridges-2 GPU (PSC Bridges-2 GPU)
1,000PSC Bridges-2 Regular Memory (PSC Bridges-2 RM)
100PSC Bridges-2 Storage (PSC Ocean)
0PSC Neocortex (PSC Neocortex - Cerebras Wafer Scale Engine AI Accelerator)
100PSC Neocortex Superdome Flex Server
1,000Purdue Anvil CPU
15Purdue Anvil GPU
1,000SDSC Expanse CPU
19SDSC Expanse GPU
1,000SDSC Expanse Projects Storage
8,015SDSC Voyager (Habana Training and Inference Processor based AI System)
56TACC Dell/Intel Knights Landing, Skylake System (Stampede2)
16TACC Dell/Intel Sapphire Rapids, Ice Lake, Skylake (Stampede3)
1,000TACC Long-term tape Archival Storage (Ranch)
8,015TAMU ACES
8,015TAMU FASTER
8TAMU Launch
1,801UD DARWIN Compute Nodes (DARWIN)
26UD DARWIN GPU Nodes (DARWIN GPU)
1,000UD DARWIN Storage (DARWIN Storage)