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Old 05-26-2008, 11:44 PM
Iain Buchanan
 
Default dual quad core xeons

On Mon, 2008-05-26 at 15:21 -0500, James Erickson wrote:
> i am wondering if gentoo can utilize the 64 bit feature of dual quad
> core xeons (E5405 harpertown).

The 64bit features, yes. If there are other "features" (eg. specific
instructions) then maybe, maybe not! I'm not the expert here.

> i am also wondering if it is possible
> to run all eight cores simutaneously on folding@home with gentoo.

Why not? If your kernel is configured properly:
$ dmesg | grep -i cpu
Processor #0 (Bootup-CPU)
SMP: Allowing 8 CPUs, 0 hotplug CPUs
PERCPU: Allocating 29344 bytes of per cpu data
Initializing CPU#0
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
Initializing CPU#1
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 1
CPU: Processor Core ID: 0
Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping 06
Initializing CPU#2
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 1
Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping 06
Initializing CPU#3
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 1
CPU: Processor Core ID: 1
Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping 06
Initializing CPU#4
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 2
Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping 06
Initializing CPU#5
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 1
CPU: Processor Core ID: 2
Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping 06
Initializing CPU#6
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 3
Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping 06
Initializing CPU#7
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 1
CPU: Processor Core ID: 3
Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping 06
Brought up 8 CPUs

http://setiathome.berkeley.edu/show_user.php?userid=69551


> i
> apologize if i am asking stupid questions. hope i am not out in left
> field with this post. thank you in advance for your consideration in
> this matter.

So long as you're running Gentoo on it, then I'll allow the question
--
Iain Buchanan <iaindb at netspace dot net dot au>

A black cat crossing your path signifies that the animal is going somewhere.
-- Groucho Marx

--
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