Subject: Re: [linux-audio-dev] Auxiliary DSP?
From: Ellis Breen (miminon_AT_hotmail.com)
Date: Mon Dec 11 2000 - 17:55:51 EET
----- Original Message -----
From: "Steve Harris" <S.W.Harris_AT_ecs.soton.ac.uk>
To: "Linux-audio-dev" <linux-audio-dev_AT_ginette.musique.umontreal.ca>
Sent: Monday, December 11, 2000 3:01 PM
Subject: Re: [linux-audio-dev] Auxiliary DSP?
> On Mon, Dec 11, 2000 at 01:25:14PM -0000, Ellis Breen wrote:
> > Is there an affordable non-proprietary DSP board option (considering
nothing
> > has happened about Creamw_AT_re on Linux, and I'm not holding my breath for
the
> > Korg OASYS to arrive in protected-mode land for a while)? Ideally it
would
> > have 4 or more ADI or Motorola DSPs. SHARCs and 56301s can be emulated,
no?
>
> I though this would be a good idea too, but several people here are of
> the opinion that the best thing to is to wait for faster GP CPUs, I'm
> starting to a agree with them.
Actually I just thought that maybe you could write a sort of transliterator
which converts x86(+MMX,SSE2 et al) code into the target processor code and
use x86 as the "Lingua Franca" for processing. Are there precedents for this
kind of thing (the JVM JIT springs to mind)?
>
> > Otherwise, can you use more than 2-way Celeron SMP? I want bang for
buck!
>
> I don't think so. PII cores can only do 2 way. You can get up to 8 way
with
> Xeons and novel, tree shaped motherboards, but the boards are very large
and
> expensive.
Hopefully the AMD SMP chipset promised for mid-2001 will be a little cheaper
(and Sledgehammer will support SSE2).
>
> How about multiple smp machines linked with a low latency network, eg.
> SCSI, 1394 or even gigabit ethernet? For comparison the PCI bus in a
> stock Intel machine is only just 1 gigabit/s. 1393 can do 0.4Gbit,
> and SCSI can do 1.3Gbit or more with extreme hardware.
>
> 1394 is probably the easiest and cheapest, and it has guaranteed low
> latency (a few hundred microseconds) streaming modes. Hell, you could even
> run mLAN over 1394 and be standards compliant, hint hint.
Sounds good. I think ABIT offer a dual-overclocked-celeron capable SMP mobo
with Firewire support onboard (gotta love'em).
Ellis
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