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|
|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||0.05 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||1.00 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||1 SU per core||AMD EPYC – 48-core nodes|
|CM2||1 SU per core||AMD EPYC – 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.