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 Post subject: Dual CPU Support
PostPosted: Fri Oct 15, 2004 9:54 am 
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Joined: Fri Oct 15, 2004 9:50 am
Posts: 18
I'm thinking about building a Myth box and using one of my old server boards. It's a dual P3 board and I was going to get a couple P3-800's for it and a PVR-250 since they seem to be highly recommended. But does knoppmyth support smp??? Or am I going to have to play with the install to get it to see dual cpu's?


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 Post subject: SMP
PostPosted: Fri Oct 15, 2004 11:30 am 
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Posts: 690
Hello

It does support Dual Processors. I recommend that you do a search on SMP and it will provide some insight as to the relivant hurdles that you may encounter. Here is a place to start

http://mysettopbox.tv/phpBB2/viewtopic. ... hlight=smp

Good Luck


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 Post subject:
PostPosted: Fri Oct 15, 2004 12:49 pm 
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I saw the other posts right after I posted this question (guess I didn't search for the right terms at first). It looks like it's quite a pain to get smp working on the system. Even with the pre-bundled kernels it looks like one has to rebuild all the modules that link to the kernel. Which is quite odd for me coming from a freebsd background but I guess that's the way that linux is.

Thank you for your informative and expediant reply to my query. :lol:


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 Post subject:
PostPosted: Fri Oct 15, 2004 1:07 pm 
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well you won't have to recompile all the modules, just some of the important ones that are not included in the linux kernel like ivtv and lirc. which is just because they are either two new ivtv or well I'm not sure why lirc has not been accepted into the kernel.

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 Post subject:
PostPosted: Sat Oct 16, 2004 8:27 am 
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Well I think I'm going to take the easy way out since I'm not real familiar with recomiling modules in linux, besides I just found a cheap (<$270) amd athlon 64 setup that looks like it will work. It's based on the SiS 755 chipset, which in my research is one of the better chipsets for the athlon 64. If the nVidia GeForce3 250 didn't have a hardware firewall build into the network controller I would look at it but I don't need any more problems than what I am going to have.

Thanks for the replies and I think I'm going to go max out my CC on computer parts now and pay for it later when the wife finds out!!! LOL


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 Post subject:
PostPosted: Sat Oct 16, 2004 12:28 pm 
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Location: Arlington, MA
jtjones wrote:
Well I think I'm going to take the easy way out since I'm not real familiar with recomiling modules in linux, besides I just found a cheap (<$270) amd athlon 64 setup that looks like it will work.

That's probably overkill unless you have evil plans to put multiple, software encoded, HDTV, tuners in the system. I've also seen various reports of issues with the MythTV stuff, drivers for the capture and video cards, on Athlon 64.

Bottom line, this is exactly the wrong way to go if you're doing it to avoid recompiling things!


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 Post subject:
PostPosted: Sat Oct 16, 2004 12:43 pm 
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Really??? I searched through the forum and it seemed to me that most people were pleased with the Athlon 64. But yes, I am going to be running a cheap 878 tv capture card to start with and "test the waters" before I make the investment of a pvr-250.

So what would be the way to go then, in your opinion?


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 Post subject:
PostPosted: Sat Oct 16, 2004 1:02 pm 
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Vanilla and mainstream, say two or three steps back from the cutting edge. Athlon XP with a Nvidia Nforce2 based motherboard, or P4 or Celeron with an Intel 8[46]5 based motherboard. CPUs in roughly the 1.8GHz-2.4Ghz and $65-85 range (AMD Thoroughbred and Barton cores, Intel Willamette and Northwood cores). The AMD/Nvidia route is probably the more cost effective of the two.


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 Post subject:
PostPosted: Sat Oct 16, 2004 1:07 pm 
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I have to agree with tjc. I've discovered that many (most?) of the myth developers use P4 systems. I have an Athlon XP system that I'm trying to do HDTV with and I'm finding it quite problematic. I'm really an AMD fan, but I'm probably going to revamp my system with a P4 because I'm tired of chasing problems the developers never see.

My advice would be to get a P4 system with Intel chipset (not VIA) and an nVidia GeForce 5200 graphics card. That's where I'm headed later today!

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 Post subject:
PostPosted: Sat Oct 16, 2004 1:21 pm 
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Intel huh? That kinda bytes... Guess I could look around for a nice (read cheap) P4 board and cpu. Anyone have any recommendations as to a chipset? Or just go with intel chipsets and stay away from Via?


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 Post subject:
PostPosted: Sat Oct 16, 2004 1:25 pm 
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BTW - Here is a discussion of AMD64 from MythTV Users...
http://www.gossamer-threads.com/lists/mythtv/users/89013

Oh and contrary to what Liv2Cod says, Athlon XP is VERY popular here at least. I'd guess about 3/4 of the KnoppMyth boxes out there are running on AMD.


Last edited by tjc on Sat Oct 16, 2004 1:27 pm, edited 1 time in total.


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 Post subject:
PostPosted: Sat Oct 16, 2004 1:26 pm 
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Guess I found my answer... never mind.

Thank you.


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 Post subject:
PostPosted: Sun Oct 17, 2004 1:08 am 
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Location: Silicon Valley, CA
tjc wrote:
I'd guess about 3/4 of the KnoppMyth boxes out there are running on AMD.


I don't disagree with that. But the DEVELOPERS of myth -- the guys checking in the code -- are by and large running P4 systems. I've been battling HDTV problems that most of the developers haven't seen, I suspect because of platform differences. (I admit that my interest is recording and playing back HDTV so my problems may not apply to others.)

I'm a dyed-in-the-wool AMD fan myself. I have eight computers at home, and only ONE is Intel. This will be my second. (And when I do a separate backend server for my myth box, it'll be an Athlon.)

Joe

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