Comment on GPU prices are coming to earth just as RAM costs shoot into the stratosphere - Ars Technica
NotSteve_@piefed.ca 3 weeks agoWhat are you running that needs more than 32Gb? I’m only just barely being bottlenecked by my 24Gb when running games at 4k
AI or servers probably. I have 40gb and that’s what I would need more ram for.
I’m still salty because I had the idea of going cpu & ram sticks for AI inference literally days before the big AI companies. And my stupid ass didn’t buy them in time before the prices skyrocketed. Fuck me I guess.
It does work, but it’s not really fast. I upgraded to 96gb from 32gb, and being able to play with the bigger models was fun, but it’s not something I could do anything productive with it was so slow.
Your bottle necked by memory bandwidth
You need ddr5 with lots of memory channels for it to he useful
I always thought using ddr5 average speeds with like 64gb in sticks on consumer boards is passable. Not great, but passable.
You can have applications where wall clock tine time is not all that critical but large model size is valuable, or where a model is very sparse, so does little computation relative to the size of the model, but for the major applications, I think that that’s correct.
Ya, that’s fair. If I was doing something I didn’t care about time on, it did work.
I’m often using 100gb of cram for ai.
Earlier this year I was going to buy a bunch of 1tb ram used servers and I wish I had.
Damn
Yeah used ram is probably where it’s at. Maybe you get them used later on from data centers…
Yep, used ECC server RAM DDR3 or DDR4 is basically thrown out. Unfortunately most consumer mainboards do not support ECC.
Two browsers full of tabs but that is not a problem, but once I start compiling AOSP (which I sometimes want to do for work at home instead in the cloud because it’s easier and faster to debugg) then it eats up all the RAM imediatelly and I have to give it 40 more GB or swap and then this swapping is the bottleneck. Once that is running the computer can’t really do anything else, even the browser struggles.
Have you tried just compiling it with fewer threads? Would almost certainly reduce the RAM usage, and might even make the compile go faster if it you’re needing to swap that heavily
Yeah that’s what I’m doing but I played for the fast CPU and can’t make it the bottleneck ^^
comrade_twisty@feddit.org 3 weeks ago
Chrome probably