[Mckernel-users 4] Re: Questions about McKernel

[yin at ertl.jp]

Dear Balazs,

Sorry for such a bother.

I found that these functions are implemented in the source code of IHK.
I sincerely apologize for my negligence.

Thank you very much.

Best,
Yin

> Dear Balazs,
>
> This is Yin from Nagoya University.
> I sincerely apologize for my slow response.
>
> Thank you so much for the prompt answer.
> After I disabled the SSE initialization code and compile again, linking
> errors:
>
> mckernel/kernel/syscall.c:4986: undefined reference to
> `ihk_mc_get_boot_time'
> mckernel/kernel/syscall.c:5001: undefined reference to
> `ihk_mc_get_ns_per_tsc'
> mckernel/kernel/syscall.c:3500:undefined reference to
> `ihk_mc_get_ns_per_tsc'
>
> are appeared.
> Unfortunately I cannot find any other implementation of these two
> functions in the source code since there are declared 'extern'.
> So these errors are impossible to solve from using this source code
> version.
>
> Looking forward to your kind response.
>
> Best,
> Yin
>
>> Hello Yin,
>>
>> thanks for your interest in McKernel!
>> Please see my answers inline.
>>
>> On Thu, May 26, 2016 at 3:50 AM, <yin at ertl.jp> wrote:
>>
>>> Q1: attached-mic mode is designed for running McKernel natively on
>>> MIC(if I
>>> didn’t misunderstand). Why the target architecture(ARCH) is x86_64 but not
>>> k1om, and the compiler designated in the configure file is gcc but not
>>> x86_6
>>> 4-k1om-linux-gcc?
>>>
>>
>> I believe that for the kernel code you can go with x86_64 as well, but
>> to
>> be honest
>> we haven't used the KNC configuration for quite a while now.
>> We've been mainly focusing on the upcoming KNL version of the Xeon Phi,
>> which will be primarily standalone and for which the standard Xeon
>> configuration
>> is currently the most similar.
>>
>> Q2: During compiling using attached-mic mode, there is an error
>> appeared:
>>> error: 'xgetbv' is not supported on 'k1om'.
>>> After searching in the source code, 'xgetbv' instruction is used in
>>> implemen
>>> ting SSE, but Xeon Phi doesn’t support SSE as I know. So I wonder whether M
>>> cKernel-1.0.0 is the formal version which can be used on Intel Xeon
>>> Phi.
>>
>> URL at which I downloaded McKernel-1.0.0:
>>> http://www.pccluster.org/ja/mckernel/download.html
>>
>>
>> The version you are using is mainly for partitioning a Xeon chip.
>> I am currently away and I am not sure how soon I can investigate this,
>> but
>> we could
>> try doing it together.
>>
>> Have you tried to disable the SSE initialization code and compile/boot
>> that
>> way?
>>
>> Best regards,
>> Balazs
>>
>>
>>>
>>> I'm looking forward to your kind response.
>>>
>>> Thank you,
>>> Yin
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Mckernel-users mailing list
>>> Mckernel-users at new1.pccluster.org
>>> http://new1.pccluster.org/mailman/listinfo/mckernel-users
>>>
>>
>
>