Recharge accounts are designed to provide computational resources on LRC at a minimal recharge rate of roughly $0.01/SU. Researchers can benefit from pay as you go policy of the Recharge allocation. Traditionally recharge accounts are named starting with “ac_”. To request Recharge Allocation Computing Allowance complete the project request at myLRC user portal, giving the details of the research activity along with a list of anticipated users.
At this time, there is a charge of $0.01/SU or Service Unit for compute cycles. Newer hardware is charged at the rate of 1 SU per 1 processor core-hr. Compute cycles on older hardware are charged at the rate of less than 1 SU per core hour to account for the differences in computing performance. Current the charges are as follows:
| System | Rate | Compute Node Description |
| LR7 | 1 SU per core | Intel Xeon Icelake 6330 – 56-core nodes |
| LR6 | 1 SU per core | Intel Xeon Gold 6130 – 32-core nodes |
| LR5 | 0.75 SU per core-hr | Intel Broadwell 28-core nodes |
| LR4 | 0.5 SU per core-hr | Intel Haswell 24-core nodes |
| LR3 | 0.00 SU per core-hr | Intel SandyBridge 16-core and IvyBridge 20-core nodes |
| LR_bigmem | 1.50 SU per core-hr | Intel(R) Xeon(R) Gold 5218 CPU @ 2.30GHz 32-core nodes |
| CF1 | 0.40 SU per core-hr | Intel Xeon PHI – 64-core nodes |
| ES1 | 1 SU per core | Intel Xeon ES – 8-core GPU nodes (2080TI and v100, A40) |
| CM1 | 0.75 SU per core | AMD EPYC – 48-core nodes |
| CM2 | 1 SU per core | AMD EPYC – 64-core nodes |
| ood_inter | 1 SU per core | Intel Xenon E5-2698 – 64-core nodes |
Users should note that their jobs are allocated resources by the node so, for example, a job running on a 12-core LR6 node will be charged 12 SUs/hr for the use of that node. Similarly, a job running on an 20-core LR5 node will be charged 20 SUs x 0.75 SU/hr = 15 SUs/hr. Account fees and cpu usage will appear as LRCACT and LRCCPU in the LBL Cost Browser.
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