Hi,
as far as I know, ARM could be either little endian or mixed endian,
depending on how old the design is…
>From Wikipedia:
"SPARC historically used big-endian until version 9, which is bi-endian,
similarly the ARM architecture was little-endian before version 3 when
it became bi-endian, and the PowerPC and Power Architecture descendants
of POWER are also bi-endian."
So it might depends on the firmware or kernel if your ARM is working in
little endianess mode.
Regards,
Uwe
Am 18.02.2015 um 13:44 schrieb Luis Kornblueh:
>
> Dear Aaaron,
>
> thanks a lot, I can pick up some logging on Friday morning. The stuff is
> in school.
>
> Cheerio,
> Luis
>
> On 2/18/15 1:28 PM, Aaron Knister wrote:
>>
>> Hi Luis,
>>
>> That's surprising to me. Can you send any errors you got when the
>> x86_64 controller was talking to the ARM compute nodes? I'm wondering
>> if there's a field in one of the SLURN binary protocol structures
>> whose length is architecture dependent. From what I gather ARM is
>> little endian so I don't *think* it's an endianness issue.
>>
>> Thanks,
>> Aaron
>>
>> Sent from my iPhone
>>
>>> On Feb 18, 2015, at 3:16 AM, Luis Kornblueh
>>> <[email protected]> wrote:
>>>
>>>
>>> Hello,
>>>
>>> I try to use slurm on a cluster buid by school kids. The controller
>>> daemon (slurmctld) runs on a x86_64 box with Debian wheezy and the
>>> associated Debian package. The compute nodes are ARM based running
>>> as well Debian wheezy (slurmd). It seems that the slurmctld and
>>> slurmd cannot communicate which other. If I move the controller to an
>>> arm
>>> platform everything works fine. For cross testing I added a x86_64
>>> box as compute node and that one could communicate with the x86_64
>>> base controller.
>>>
>>> This allows to assume, I think, that there is some trouble with the
>>> communication protocol as it is not architecture/hardware independent.
>>>
>>> Could you give me any help on how to deal with this?
>>>
>>> Thanks a lot,
>>> Luis
>>> --
>>> \\\\\\
>>> (-0^0-)
>>> --------------------------oOO--(_)--OOo-----------------------------
>>>
>>> Luis Kornblueh Tel. : +49-40-41173289
>>> Max-Planck-Institute for Meteorology Fax. : +49-40-41173298
>>> Bundesstr. 53
>>> D-20146 Hamburg Email: [email protected]
>>> Federal Republic of Germany
>
