Why not get a 0.5 or 1 tb nvme ssd and set it all as swap?
It will run probably 10 times slower, but it's cheap and doable.
This is the way.
Depending on the nature of the sim, it could probably even be done with ~80 GB or less of existing SSD space using zram w/ zstd.
Needing that much RAM is usually a red flag that the algo is not optimized.
Researchers always make some of the worst coders unfortunately.
Scientists, pair up with an engineer to implement your code. You'll thank yourself later.
True, but there are also some legitimate applications for 100s of gigabytes of RAM. I've been working on a thing for processing historical OpenStreetMap data and it is quite a few orders of magnitude faster to fill the database by loading the 300GiB or so of point data into memory, sorting it in memory, and then partitioning and compressing it into pre-sorted table files which RocksDB can ingest directly without additional processing. I had to get 24x16GiB of RAM in order to do that, though.
Nope. Some algorithms are fastest when a whole data set is held into memory. You could design it to page data in from disk as needed, but it would be slower.
OpenTripPlanner as an example will hold the entire road network of the US in memory for example for fast driving directions, and it uses the amount of RAM in that ballpark.
Sure, that is why I said usually. The fact that 2 people replied with the same OpenStreetMap data set is kinda proving my point.
Also, do you need the entire US road system in memory if you are going somewhere 10 minutes away? Seems inefficient, but I am not an expert here. I guess it is one giant graph, if you slice it up, suddenly there are a bunch of loose ends that break the navigation.
I host routing for customers across the US, so yes I need it all. There are ways to solve the problem with less memory but the point is that some problems really do require a huge amount of memory because of data scale and performance requirements.
That's kinda an insane amount of ram for most simulations. Is this like a machine learning thing? Is his python code just super unoptimized? Is it possible he's making a bunch of big objects and then not freeing the references when he's done with them so they're never garbage collected?
AWS has an r4.8xlarge 244gb ram with 32 vcores for $2.13 an hour If they can handle Linux. $2.81 an hour for windows.
First, define what you are asking for.
Do you want someone to send you a cardboard box full of RAM? Then forget it. Nobody would be stupid enough to lend that much expensive hardware to someone on the internet.
Or are you asking for someone to let you run random code on their PC for a few hours? Then forget it. Nobody would be stupid enough to open "a single SSH port" to someone on the internet to run potential malware on their PC.
That's exactly what cloud platforms are there for, and if you don't like google, get any other cloud provider.
Apply for compute time at a university cluster. It is free and usually easy.
The computer I'm typing on has 96 gb ram. Most of my equipment is ancient in terms of PCs. This one I build about 14 years ago, and I fully stocked it with the cutting edge tech of the day. My intent was to build a LTS PC, as it were. LOL Back then, SLI was the thing, but I've upgraded the GPU. I have some old stuff in the parts bin tho, but it's ancient as well.
that's probably way too much for any sane Python algorithm. if they can't run it, how do they even know how much is needed?
Probably they should only make a prototype in Python, and then reimplement it in a compiled language. it should reduce the resource usage massively
got a bag full of SIMMs, probably not a whole buttload but I don't think even that amount would add up to 256GB
Tell your friend to open source the algorithm.. Somebody will surely point at a easy optimization. 100 others will just shit on your friend
Borrow it from NewEgg, then return it
Newegg isn't so bad. Do a shit corporate like best buy.
I've got 512GB of RAM in my server, and 128GB of RAM on my desktop cause you can never have too much.
Define buttload
put your butt on a scale, convert the result to RAM, duh
Yup, that’s some random ass memory.
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