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NixOS CUDA

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CUDA packages maintenance and support in nixpkgs | https://github.com/orgs/NixOS/projects/27/ | https://nixos.org/manual/nixpkgs/unstable/#cuda63 Servers

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2 Mar 2026
@lt1379:matrix.orgLun😭23:47:25
@hexa:lossy.networkhexa (UTC+1)Yeah, I'm afraid unless we don't GC harder this is going to be tought sell.23:51:53
@hexa:lossy.networkhexa (UTC+1)* Yeah, I'm afraid unless we GC harder this is going to be tought sell.23:51:57
@hexa:lossy.networkhexa (UTC+1)* Yeah, I'm afraid unless we GC harder this is going to be tough sell.23:52:02
3 Mar 2026
@ss:someonex.netSomeoneSerge (matrix works sometimes)=\16:23:53
@caniko:matrix.orgcanikoany chance to build gimp and handbrake?19:53:02
5 Mar 2026
@kaya:catnip.eekaya 𖤐 Not sure if it's been mentioned here before but, for anyone affected by flash-attn builds OOM-ing. I noticed an upstream patch that tries to counter it https://github.com/Dao-AILab/flash-attention/pull/2079
Might be possible to apply it to the nix package 🤔
13:26:33
@kaya:catnip.eekaya 𖤐 * 13:26:58
@sporeray:matrix.orgRobbie Buxton Omg the bane of my existence 16:39:35
@sporeray:matrix.orgRobbie Buxton That has oomed on an ungodly amount of RAM 16:40:08
@sporeray:matrix.orgRobbie Buxton Nice to see they are trying to fix 16:40:26
6 Mar 2026
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)I found zram gave an amazing compression ratio (I think the data being allocated by NVCC was all zeros) so even though it allocated upwards of .25TB of RAM I didn’t need to reduce the number of jobs05:13:31
@glepage:matrix.orgGaétan LepageI enabled this on our builders.10:18:40
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)Yay talking at state of the union is over, sorry I asked for packages we test specifically and then mentioned none of them18:59:31
@h4k:matrix.orgmike hi all 19:02:58
@h4k:matrix.orgmike any guide for using nix on ubuntu for cuda torch? 19:03:27
@h4k:matrix.orgmikei am basically having out of memory compiling it all on my machine19:11:16
@h4k:matrix.orgmikeok i got it working will document when i ran all tests.19:19:50

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