Re: Fedora 5 or 6 on Tyan K8QW (S4881) + M4881, 8 processors, 128 GB

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Which kernel are you using? and which ones have you tried out? 

On Wed, 2006-11-08 at 11:09 -0700, Phil Meyer wrote:
> Huijgen, V.B. wrote:
> >
> > Does anyone have experience running Fedora 5 or 6 on a Tyan K8QW 
> > (S4881) with CPU Board M4881, 8 processors and 128 GB ?
> >
> > Using google, I found that Fedora will probably work with 64 GB but I 
> > found no confirmation about 128 GB and 8 processors.
> >
> > As far as I understand from the config file under /boot, there are no 
> > limitations configured in the kernel for the number of processors and 
> > for the memory.
> >
> > Do I need special boot parameters ?
> >
> >  
> >
> > Vincent
> >
> 
> Not specifically, but generally you are correct.
> 
> Specifically you will need to run FC5 or FC5 x86_64 to use more than 4GB 
> of RAM properly.  The upper limit for RAM with x86_64 is not available 
> to mortals. :)
> 
> The 32 bit versions will see the memory, but applications will be 
> limited to how much memory they can address so it probably would defeat 
> the purpose of having that much RAM.
> 
> As far as number of CPUs, again you are generally correct that it should 
> work.  However, I have not tested that specific Mother Board, sorry I 
> cannot confirm that.
> 
> I have worked with a 4 CPU dual core AMD processor based system such 
> that they appeared as 8 CPUs with no problems.
> 
> I also see 8 CPUs on an intel 2 Xeon Dual Core system with HT enabled.
> 
> Realistically speaking, you cannot purchase a midrange AMD based server 
> that FC5 or FC6 could/should not handle.  The big CAVEAT is that all 
> possible hardware combinations, other than CPU and Memory, is not 
> practical to cover.  The Fedora kernels are often criticized for being 
> large for this very reason.  Fedora does try to cover most common hardware.
> 
> You are wise to ask about specifics such as a given Mother Board.
> 
> Good luck!
> 
-- 
Adam Hough
High Performance Computing
Computing Services Center 200
225-578-7202
fax: 225-578-6400
ahough@xxxxxxx


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