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From:
Stuart Henderson <stu@spacehopper.org>
Subject:
Re: stable-diffusion.cpp and vulkan flavour question
To:
Mikolaj Kucharski <mikolaj@kucharski.name>
Cc:
ports@openbsd.org
Date:
Tue, 10 Feb 2026 17:00:19 +0000

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On 2026/02/10 03:18, Mikolaj Kucharski wrote:
> Hi,
> 
> I have vague understanding what Vulkan is and vague understanding
> what stable-diffusion.cpp is. However what is practical
> difference in terms of setup and hardware requirements between two
> flavours of stable-diffusion.cpp software?
> 
> When one should install default flavour and when vulkan flavour?
> 
> How well vulkan flavour works on OpenBSD and with what hardware?
> 
> Do you know hardware selection process which could allow choosing
> to run stable-diffusion.cpp on OpenBSD?
> 
> -- 
> Regards,
>  Mikolaj
> 

The vulkan flavour requires GPU hardware supported by vulkan, the
plain one uses CPU.

This stuff is very resource hungry.

Probably best to run similar tests with both and use whichever works
best on your specific hardware.