local binhost

lcsavb · Posted: Sun Nov 03, 2024 11:29 am Post subject: local binhost

Hey!

I would like to use my Dektop with arch Linux and a Threadripper processor to compile packages for my laptop with gentoo and meteor lake.

? I read that binhost is easier than gccdist, right? the march=meteor lake been implemented?

I have to install portage in my arch desktop?

Can I install gentoo using my local binhost ?

We I have used gentoo 5 years ago and I miss it. Glad I am coming back. I have used Gentoo for a couple of years in my 8th gen intel laptop, I thought about doing that because back then it took me 6 hours to compile all the stuff to install Gentoo, so I thought about this solution to make installation/updates faster.

Thanks

NeddySeagoon · Posted: Sun Nov 03, 2024 11:42 am Post subject:

There is a wiki page about building in a chroot.
Essentially, you make a chroot on your threadripper that is a copy of the install you want on the laptop.

The devil is in the detail and you have one AMD and one Intel CPU.
see the wiki page. I would post a link but I'm on my phone just now.
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lcsavb · Posted: Sun Nov 03, 2024 12:00 pm Post subject:

But having a Ryzen in my desktop and an Intel in my laptop would make a difference If I choose the right march?

Hu · Administrator Joined: 06 Mar 2007 Posts: 22601

The processor mismatch requires you to be more careful with your -march, but a properly chosen value should still work. You need a value that generates code that runs on both the AMD and Intel CPUs. This is well supported, as the binary distributions offer a single download that works for both. They pay for it in the inability to use processor-specific extensions.

Ralphred · l33t Joined: 31 Dec 2013 Posts: 645

lcsavb · Posted: Sun Nov 03, 2024 7:36 pm Post subject:

I asked chatGPT:

" Yes, that's correct. Compiling directly on the target machine typically allows for better optimization because the compiler can take full advantage of the specific architecture and features available on that hardware. Here are some reasons why:

Architecture-Specific Optimizations: The compiler can generate code that leverages the unique capabilities of the target CPU (like specific instruction sets or optimizations).

Performance Tuning: You can fine-tune the build configuration for the target environment, considering factors like cache sizes and memory architecture.

Dependencies: When compiling on the target machine, you ensure that all libraries and dependencies are specifically tailored for that architecture.

Avoiding Compatibility Issues: Compiling on the target helps mitigate potential issues with compatibility between different architectures, such as binary incompatibilities.

If optimal performance is a priority for your application, compiling directly on the Meteor Lake system is the best approach. However, if you're constrained to building on the Threadripper, just be cautious with the flags and dependencies to maximize compatibility."

I will compile everything in my laptop, otherwise I would lose one of the main factors I use Gentoo: extracting all the performance possible.

At the end, it' s about 5%, but it is my fetish.

Ralphred · l33t Joined: 31 Dec 2013 Posts: 645

lcsavb · Posted: Mon Nov 04, 2024 6:09 am Post subject:

That’s a great project. Thanks for sharing.

It wouldn’t change the fact processors are discrepant, yet I could sign up for some in the cloud.

Ralphred · l33t Joined: 31 Dec 2013 Posts: 645

lcsavb · Posted: Mon Nov 04, 2024 5:56 pm Post subject:

Thanks Ralphred for clarifying.

I will use this container.