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Subject: Re: [hwloc-users] CPU info on ARM
From: Brice Goglin (Brice.Goglin_at_[hidden])
Date: 2014-01-28 13:02:26


Can you send their /proc/cpuinfo ?

It looks like all ARM platforms have very similar cpuinfo files in
Linux, so I expect something similar to what's below, but maybe we'll
see better which fields are interesting.

Brice

Le 28/01/2014 18:38, Jeff Hammond a écrit :
> I don't know the answer but I'm happy to test on my ARM systems if you
> have an experiment to perform.
>
> Right now, I have an NVIDIA Kayla board and a Parallella board, both
> of which are ARMv7.
>
> Jeff
>
> On Tue, Jan 28, 2014 at 6:51 AM, Jeff Squyres (jsquyres)
> <jsquyres_at_[hidden]> wrote:
>> I passed this on to my OMPI ARM contact (Leif Lindholm). Here's what he said:
>>
>> "It gets a bit trickier on ARM... since we may also have (implementation
>> time) configurable cache sizes and also big.LITTLE (different processor
>> models executing in the same SMP system)."
>>
>> He passed the question on to another ARM guy, asking for further detail. I'll pass on what he says.
>>
>>
>>
>> On Jan 28, 2014, at 3:39 AM, Brice Goglin <Brice.Goglin_at_[hidden]> wrote:
>>
>>> Hello,
>>>
>>> Is anybody familiar with ARM CPUs?
>>>
>>> I am adding more CPU information because Intel needs more:
>>> CPUVendor=GenuineIntel
>>> CPUModel=Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz
>>> CPUModelNumber=45
>>> CPUFamilyNumber=6
>>>
>>> Would something similar be useful for ARM? What are the fields below
>>> from /proc/cpuinfo on ARM that would be useful to developers?
>>> Processor : Marvell PJ4Bv7 Processor rev 1 (v7l)
>>> BogoMIPS : 1196.85
>>> Features : swp half thumb fastmult vfp edsp vfpv3 vfpv3d16 tls
>>> CPU implementer : 0x56
>>> CPU architecture: 7
>>> CPU variant : 0x1
>>> CPU part : 0x581
>>> CPU revision : 1
>>> Hardware : Marvell Armada-370
>>> Revision : 0000
>>> Serial : 0000000000000000
>>>
>>> thanks
>>> Brice
>>>
>>> _______________________________________________
>>> hwloc-users mailing list
>>> hwloc-users_at_[hidden]
>>> http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users
>>
>> --
>> Jeff Squyres
>> jsquyres_at_[hidden]
>> For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
>>
>> _______________________________________________
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>> hwloc-users_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users
>
>