| 16 Apr 2026 |
 jaredmontoya | I tried to update to the latest nixos-unstable but thunderbird seems to not be in cache.nixos-cuda.org (and I can't build it because it sems to need more than 64GB RAM to build) did anyone else experience this? | 13:33:23 |
 hexa (UTC+1) |
more than 64 GB
| 13:34:23 |
| hexa (UTC+1) | that seems unlikely | 13:34:26 |
| hexa (UTC+1) | https://hydra.nixos-cuda.org/jobset/nixos-cuda/cuda-packages-unstable#tabs-evaluations | 13:35:18 |
| hexa (UTC+1) | the last eval was two weeks ago | 13:35:24 |
 Robbie Buxton | In reply to @hexa:lossy.network
that seems unlikely Idk I’ve oomed on packages with over 1TB of ram | 13:36:51 |
| hexa (UTC+1) | wat\ | 13:37:01 |
| hexa (UTC+1) | Redacted or Malformed Event | 13:37:03 |
 nim65s | but you build with how many cores? | 13:37:23 |
| hexa (UTC+1) | a) you can run out of ram with exccessive cores | 13:37:29 |
| nim65s | * but you build with how many cores ? | 13:37:31 |
| hexa (UTC+1) | b) without excessive cores the most ram usage is during linking | 13:37:38 |
| hexa (UTC+1) | I'd say firefox takes at most 40 GB to link | 13:37:55 |
| Robbie Buxton | I was using nixbuild.net and it kept sizing it up and giving it more cores, and yeah the solution was reducing cores obviously | 13:38:02 |
| hexa (UTC+1) | that's not friendly at all, but does fit on my desktop still | 13:38:12 |
| hexa (UTC+1) | but that means your core/ram balance was way off | 13:38:28 |
| Robbie Buxton | In reply to @hexa:lossy.network
but that means your core/ram balance was way off How so? | 13:39:20 |
| hexa (UTC+1) | you have a base need of RAM per core | 13:39:51 |
| hexa (UTC+1) | just to run the build on it | 13:39:58 |
| hexa (UTC+1) | and if you oom the total cores probably needed more ram than what was provided | 13:40:17 |
| hexa (UTC+1) | and the solution would have been to get fewer cores with more ram instead | 13:40:30 |
| Robbie Buxton | Idk I can’t get more than 1.6 TB of ram on AWS 😁 | 13:40:42 |
| hexa (UTC+1) | now I don't know anything about how nixbuild.net does scaling | 13:40:56 |
| Robbie Buxton | The large instances have interesting ratios | 13:40:55 |
| hexa (UTC+1) | yeah, but if you get 10k cores at the same time, then what? | 13:41:09 |
| Robbie Buxton | Iirc it’s not that smart for sizing (the service itself is fab tho) | 13:41:32 |
| hexa (UTC+1) | that's 160 MB per core if I didn't miscalculate | 13:41:38 |
| Robbie Buxton | In reply to @hexa:lossy.network
yeah, but if you get 10k cores at the same time, then what? On a single machine I can dream | 13:41:47 |
| hexa (UTC+1) | right | 13:41:55 |
 Gaétan Lepage | Yes, our cuda-packages jobset is broken because python3Packages.deep-ep emits a warning at eval time. | 13:56:06 |
