Subject: Re: Multi-processor RiscPC?
To: Ben Harris <bjh21@netbsd.org>
From: Anthony Hilton <ajh@tinshill.f9.co.uk>
List: port-acorn32
Date: 02/23/2002 21:16:48
In <URL:news:local.netbsd.acorn32> on Sat 23 Feb, Ben Harris wrote:
> In article <Marcel-1.53-0223162503-72bZSTv@tinshill.force9.net> you write:
> >When NetBSD gets SMP support will it be possible to plug 2 ARM processor
> >boards into  RiscPC and have an MP machine running NetBSD?
> 
> Not directly.  The standard ARM CPU cards don't have any arbitration logic
> on them (though the 486 CPU cards do), so you can't just plug them straight
> into the two CPU slots.  Simtec made a board called Hydra that provided the
> arbitration logic and allowed up to five ARM CPUs, but it never went into
> full production so they're rather rare.

Thanks for the response, Ben. I thought there was something like that. I do
remember hearing about the Hydra some time ago.

Anthony Hilton

-- 
ajh@tinshill.f9.co.uk