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Llama.cpp 30B runs with only 6GB of RAM now

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1311 points msoad | 5 comments | 31 Mar 23 20:37 UTC | HN request time: 0.204s | source
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jart ◴[31 Mar 23 21:02 UTC] No.35393615[source]▶
Author here. For additional context, please read https://github.com/ggerganov/llama.cpp/discussions/638#discu... The loading time performance has been a huge win for usability, and folks have been having the most wonderful reactions after using this change. But we don't have a compelling enough theory yet to explain the RAM usage miracle. So please don't get too excited just yet! Yes things are getting more awesome, but like all things in science a small amount of healthy skepticism is warranted.
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intelVISA ◴[31 Mar 23 22:03 UTC] No.35394288[source]▶
Didn't expect to see two titans today: ggerganov AND jart. Can ya'll slow down you make us mortals look bad :')

Seeing such clever use of mmap makes me dread to imagine how much Python spaghetti probably tanks OpenAI's and other "big ML" shops' infra when they should've trusted in zero copy solutions.

Perhaps SWE is dead after all, but LLMs didn't kill it...

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gct ◴[01 Apr 23 02:04 UTC] No.35396298[source]▶
This doesn't even seem that clever, just regular ol' use of mmap where there was none before. Wonder what other performance is being left on the floor. I'm convinced entire power plants could be retired if the world stopped using python unfortunately.
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ChatPGT ◴[01 Apr 23 02:35 UTC] No.35396471[source]▶
>> I'm convinced entire power plants could be retired if the world stopped using python unfortunately.

On the other hand, many business and professionals wouldn't exist :)

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sn_master ◴[01 Apr 23 03:23 UTC] No.35396778[source]▶
I can't find a single good argument for Python based on merit that's not at least 15+ years dated and stems from "But Google is using it".

It's not the easiest syntax, not the best compiler support, performance and threading is a joke. The entire language is based on hype back from the time when the only two mainstream languages were C++ and Java.

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alanfranz ◴[01 Apr 23 06:04 UTC] No.35397582[source]▶
Python is the 2nd best language for everything.

It doesn’t excel at anything, but anything a software can do, it can be done in Python somehow.

So, a great pick when you’ve got no idea where you’re going to, when you’re prototyping, when you don’t care about performance or perfection.

I agree that for large scale systems when you already know what you’re doing, Python shows its limits quite soon (and we should add the problems with missing/slow type checking that slows down large scale systems development).

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pharmakom ◴[01 Apr 23 06:49 UTC] No.35397835[source]▶
> Python is the 2nd best language for everything.

Huh? Why?

You can barely deploy it to Web.

it doesn't scale perfoance wise

you can't built robust abstractions

The REPL is merely OK

You can barely ship working code without containers

the syntax is hard to manipulate programmatically

Python has inertia but it's holding us back

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1. renox ◴[01 Apr 23 08:39 UTC] No.35398487[source]▶
You have good points but "the syntax is hard to manipulate programmatically"??

Maybe you haven't noticed but Lisp is now a tiny niche and most new languages aren't homoiconic either..

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2. pharmakom ◴[01 Apr 23 11:03 UTC] No.35399215[source]▶
I don't think that proves anything. If we had "JavaLisp" in the browser instead of JavaScript then Lisp would be very popular. Besides that, Python is harder to manipulate than many non-Lisps, such as JavaScript and Go.
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3. renox ◴[01 Apr 23 12:38 UTC] No.35399805[source]▶
Python became popular without being the 'web language', the Lisps didn't.
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4. pharmakom ◴[01 Apr 23 12:42 UTC] No.35399840{3}[source]▶
Curly brace languages are more popular again.
5. kazinator ◴[02 Apr 23 06:41 UTC] No.35407814[source]▶
Here, we can set Lisp aside and take grandparent comment's definition of syntax to be concrete, character-level syntax.

Python concrete syntax is harder to manipulate programmatically compared to Javascript concrete syntax.

For instance, to insert one statement into another, we need to traverse the lines of that syntax and add the right amount of indentation. We can't just plant the syntax into the desired spot and be done with it.