Subject: Re: [linux-audio-dev] Auxiliary DSP?
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Mon Dec 11 2000 - 17:01:05 EET
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.
> 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.
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.
- Steve, resident mLAN evangelist ;)
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