[Solved] Re: Number of cores

[Joaquin Nadal Dura]

On 11/19/2012 03:17 PM, KD wrote:
> Joaquin Nadal Dura <ximo.nadal <at> ific.uv.es> writes:
>
>> I've two twin machines with a "Intel(R) Core(TM) i7 CPU X 990 @ 3.47GHz"
>> processor.
>>
>> On the first of them the OS is Lucid, and /proc/cpuinfo says it has 12
>> cores. Kernel 2.6.32-44-generic #98-Ubuntu SMP Mon Sep 24 17:27:10 UTC
>> 2012 x86_64 GNU/Linux.
>>
>> On the second one the OS is Precise, and /proc/cpuinfo says it has 6
>> cores. Kernel 3.2.0-33-generic #52-Ubuntu SMP Thu Oct 18 16:29:15 UTC
>> 2012 x86_64 x86_64 x86_64 GNU/Linux.
>
> Check if hyper-threading is enabled in the latter machine's BIOS.
>

It was disabled. If enabled it works fine.

Thanks.

-- 
ximo.nadal at ific.uv.es