Has support been dropped for Intel Celeron?

[mikoatkvr]

I've noticed since version 11.5.6 that Waveform will no longer run on my Lenovo ideapad ( running Ubuntu 20.04 budgie ).
I use this netbook for sketching ideas and although it isn't exactly a power horse, it is surprising capable of running quite a few instances of Vital synth etc.
The machine has an Intel Celeron dual core chip and the error thrown at runtime is a sigkill with" illegal instruction ( core dumped )'
Thanks guys.

[jdnz]

which model celeron? If it's older it's probably the lack of avx (only the very latest generation of celeron's have grown avx support - previously celeron/pentium lacked it)

[FigBug]

Linux now requires at least Sandy Bridge. GCC was generating much slower code if we allowed older processors.

https://en.wikipedia.org/wiki/Sandy_Bridge

[ForrestH]

Linux now requires at least Sandy Bridge.

Someone needs to update the product pages on tracktion.com. They used to specify Core Duo, but now just say "64 bit", which is a lesser requirement.

[mikoatkvr]

I wonder does Waveforms internal code depend/require the actual avx &&|| sse instruction set to function ( with the new engine ) properly?
I think it's possible on Linux for some Intel chipsets to upgrade the required libs ( if the functionality is there obviously )
It may even be possible ( this is just my thinking without any research ) to hack the kernel or some microcode to trick the system into believing it is capable?

Would be good to hear from the Devs on their knowledge on the subject.

Thanks.

[FigBug]

We have a lot more users that we expected still using older computers, so we are hopefully going to find a way to remove this requirement.

[mikoatkvr]

Thanks Figbug, as long as it doesn't cause problems with the new engine It would be good to keep support for older chips I guess.

[FigBug]

What CPU do you have? We are thinking of supporting Nahalem and newer. That's 2008 and newer CPU. Gets us SSE4.1
https://en.wikipedia.org/wiki/Nehalem_( ... hitecture)

[mikoatkvr]

@FigBug My CPU is a ' goldmont_plus ' N4020 . I believe this is a late 2019 processor (formerly Gemini Lake Refresh)

According to what I have seen so far, SSE-4.2 should be supported ( maybe a Linux thing tho ? )

https://ark.intel.com/content/www/us/en ... 0-ghz.html

[FigBug]

Can you try this version on Linux and let me know if it works with your CPU: https://www.dropbox.com/s/yfdl059vw297b ... 1.deb?dl=0

[mikoatkvr]

Can you try this version on Linux and let me know if it works with your CPU: https://www.dropbox.com/s/yfdl059vw297b ... 1.deb?dl=0

Yes this version is working for me now thanks @FigBug

[FigBug]

Can you try this version on Linux and let me know if it works with your CPU: https://www.dropbox.com/s/yfdl059vw297b ... 1.deb?dl=0

Yes this version is working for me now thanks @FigBug

That's good. Can you comment on performance. How does the new engine compare to the old engine in regards to CPU usage?

[mikoatkvr]

That's good. Can you comment on performance. How does the new engine compare to the old engine in regards to CPU usage?

I will do some tests this evening as I have actually just did a reinstall of Ubuntu on this very machine last night and will need to spend a few hours tweaking the system to get the best possible configs for audio i/o / low latency etc

[planteater]

Can you try this version on Linux and let me know if it works with your CPU: https://www.dropbox.com/s/yfdl059vw297b ... 1.deb?dl=0

I tried this on my old i5-750 running Linux Mint and it seems fine.

[augusj]

What CPU do you have? We are thinking of supporting Nahalem and newer. That's 2008 and newer CPU. Gets us SSE4.1
https://en.wikipedia.org/wiki/Nehalem_( ... hitecture)

Hi @FigBug,
Is there any chance of Phenom II getting support as well?