I can only boot 8 core in X86 FS mode, and the simulator shows that 8 core is
the maximum limit. Do I need to modify some config file, or is there any patch
for booting 64 core?
Xuhao Chen
PhD student
School of Computer
National University of Defense Technology
Changsha, Hunan, P.R.China, 410073
Tel: +86-159-741-03340 (Mobile)
From: Nilay Vaish
Date: 2012-02-29 04:37
To: gem5 users mailing list
Subject: Re: [gem5-users] Anyone able to boot multiple cpus in x86 FS?
I have booted a 64 core system using timing simple cpu.
--
Nilay
On Tue, 28 Feb 2012, Jason Clemons wrote:
> I was able to boot 8 cores using atomic but I am still working on multicore
> timing or detailed models. I currently get a error when init calls fork at
> the end of booting. I am trying a couple of patches from the website to see
> if they will help.��
Later,
Jason
Sent from my Samsung Epic��?4G
Xiao Guo <[email protected]> wrote:
Is it possible to boot more than 4 cores in x86 FS?
On Feb 27, 2012, at 5:51 PM, Jason Clemons wrote:
> Gabe,
>
> Thanks for the patch.�� I did a hg pull and hg update this afternoon and have
> made some progress on booting.�� I found that with a custom built version of
> 2.6.28.4 with smp on, the patch and the linux image files (linux-bigswap2.img
> and linux-x86.img) from gem5.org I am able to boot multicore x86 using the
> default cpu type which I think is atomic.
>
> After working with Andrea, we noted that the boot problem for x86 happens
> with the PARSEC root image but not the linux-x86.img from gem5.org.�� This
> was tested using the custom kernel and the default cpu type.
>
> I am currently attempting to test the detailed cpu-type with 2 cpus.�� I will
> let you know of any errors I run into.
>
>
> Thanks,
>
> Jason Clemons
>
>
>
> Quoting Gabe Black <[email protected]>:
>
>> I looked into this more, and the code that sets up the memory hierarchy
>> was broken a little while ago. I have a patch that seems to fix it
>> (attached) but then it gets stuck a little later. I remember a while ago
>> someone had problems with atomic operations not being supported by the
>> memory system fully, but I don't remember the specifics. This might be
>> that problem too.
>>
>> Gabe
>>
>> On 02/24/12 02:45, Gabriel Michael Black wrote:
>>> Yes, I have. You're using O3 though, and that support is fairly new.
>>>
>>> Gabe
>>>
>>> Quoting "Ankita (Garg) Goel" <[email protected]>:
>>>
>>>> Hi,
>>>>
>>>> Has anyone been able to boot multiple cpus wth FS mode on x86 ? If
>>>> yes, it
>>>> would greatly help if you could share your environmental setup. The
>>>> issues
>>>> I am facing I have already posted in some previous emails.
>>>>
>>>> Thanks for your help!
>>>>
>>>> --
>>>> Regards,
>>>> Ankita
>>>>
>>>
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