Re: [LAU] Bye Bye 32 bit

From: Manuel Haible <lacuna_@email-addr-hidden>
Date: Wed Dec 27 2017 - 19:39:07 EET
8 cores max?

  Would Ardour use even more, if more cores are running?
 
 
Renoise supports multicore:

http://forum.renoise.com/index.php/topic/13302-multicore-faq/
 
And Bitwig does:

https://www.kvraudio.com/forum/viewtopic.php?p=5828030
 
Pure Data is supporting multicore, too.

Of course they all don't "require" multicore CPUs.
 
I assume: for
     high samplerates
 + many tracks
 + many fx
 + very small buffer size
 + ultra low latency
singlecore performance is equally important as the number of cores?


 
What is a wise CPU choice for realtime-on-stage-use with up to 28 AD/DA I/Os streams, internaly more busses, and FX on each track and bus?
Are 64 samples buffersize realistic in such a scenario? With 96k?
 
As audioconverters, I am thinking about the RME HDSPe Madi FX + madi-converters (SPL Madison? Ferrofish?)!?

Are you experienced?
 
 
 
Gesendet: Mittwoch, 27. Dezember 2017 um 18:24 Uhr
Von: "Paul Davis" <paul@email-addr-hidden>
An: bill@email-addr-hidden
Cc: linux-audio-user <linux-audio-user@email-addr-hidden>
Betreff: Re: [LAU] Bye Bye 32 bit
 
 
On Wed, Dec 27, 2017 at 11:55 AM, Bill Purvis <bill@email-addr-hidden> wrote:
On 27/12/17 15:16, Fons Adriaensen wrote:
On Wed, Dec 27, 2017 at 02:22:58PM +0000, Bill Purvis wrote:
 
If there is some cunning
way to specify an actual number of cores to be used, then the person who
wrote a program which uses that deserves to get lots of flak from people
using that program!
Depends on how it's used. For example, Ardour allows you to
set the number of cores used. The default is 'all but one',
and that makes perfect sense.

Ciao,
I think that simply limits the number of cores, no guarantee that they will all be
used. If it runs lots of threads, as I assume it does, then the chances are it will
use as many cores as are permitted.
 
​Fons description is correct.
 
Ardour carefully and deliberately creates as many realtime priority threads for DSP as told to, based on the number of cores that should be used. ​
​
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Received on Wed Dec 27 20:15:01 2017

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