# Access-om2 ksu benchmarks **URL:** \ **Category:** COSIMA\ **Tags:** help, cosima, access-om2\ **Created:** [4 June 2025 05:45 UTC](https://forum.access-hive.org.au/t/access-om2-ksu-benchmarks/4577 "2025-06-04T05:45:45Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![dkhutch](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/dkhutch/32/510_2.png) [@dkhutch](https://forum.access-hive.org.au/u/dkhutch)\ **Post date:** [4 June 2025 05:45 UTC](https://forum.access-hive.org.au/t/access-om2-ksu-benchmarks/4577/1 "2025-06-04T05:45:45Z")
Hi, I was wondering if someone could please point me to the computational cost benchmarks for: - ACCESS-OM2-025 - ACCESS-OM2-01 I.e. How many KSU for 1 month simulation (or other standard period) in each case, and how many CPUs for the layout. Thanks, Dave ---
**Author:** ![anton](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/anton/32/1836_2.png) [@anton](https://forum.access-hive.org.au/u/anton)\ **Post date:** [4 June 2025 05:48 UTC](https://forum.access-hive.org.au/t/access-om2-ksu-benchmarks/4577/2 "2025-06-04T05:48:13Z")
ACCESS-NRI haven’t created new benchmarks - @aekiss is best placed to answer this 🙂 ---
**Author:** ![adele-morrison](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/adele-morrison/32/90_2.png) [@adele-morrison](https://forum.access-hive.org.au/u/adele-morrison)\ **Post date:** [4 June 2025 10:10 UTC](https://forum.access-hive.org.au/t/access-om2-ksu-benchmarks/4577/3 "2025-06-04T10:10:26Z")
The numbers we usually put in our NCMAS applications are as follows: | Model | Resolution | Processors | Memory | Cost | | --- | --- | --- | --- | --- | | ACCESS-OM2-025 | 0.25°, 50 levels | 1824 | 36 Gb/node | 7.2 kSU/yr | | ACCESS-OM2-025-BGC | 0.25°, 50 levels | 1824 | 124 Gb/node | 13.1 kSU/yr | | ACCESS-OM2-01 (small) | 0.1°, 75 levels | 5088 | 34 Gb/node | 123 kSU/yr | | ACCESS-OM2-01-BGC (small) | 0.1°, 75 levels | 5088 | 63 Gb/node | 245 kSU/yr | | ACCESS-OM2-01 (large) | 0.1°, 75 levels | 12144 | 35 Gb/node | 156 kSU/yr | But it varies a lot depending on amount of diagnostics being saved or additional tracers etc. ---
**Author:** ![atteggiani](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/atteggiani/32/212_2.png) [@atteggiani](https://forum.access-hive.org.au/u/atteggiani)\ **Post date:** [15 July 2025 03:12 UTC](https://forum.access-hive.org.au/t/access-om2-ksu-benchmarks/4577/4 "2025-07-15T03:12:22Z")