[CP2K:8002] segmentation fault when I run CP2k on mic

Iain Bethune ibet... at epcc.ed.ac.uk
Mon Jul 25 12:53:55 UTC 2016


Hi, we tested your arch file, and it works fine for other inputs, so I suspect you are just running out of memory due to running a system which is too large for the available memory on the MIC card.  For example, H2O-64.inp will run fine, but H2O-128 or above will run out of memory.

To be honest, the performance obtained on the Knight’s Corner Xeon Phis is quite disappointing, so I would probably wait to get access to a Knight’s Landing, rather than spending much effort getting things running on the KNC.

- Iain

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Iain Bethune
Project Manager, EPCC

Email: ibet... at epcc.ed.ac.uk
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> On 22 Jul 2016, at 08:49, Iain Bethune <ibet... at epcc.ed.ac.uk> wrote:
> 
> Hi, looks that arch file came from us originally!  Will check Fiona who is up-to-date with what is working on the MIC, she’s on holiday but back next week.
> 
> - Iain
> 
> --
> 
> Iain Bethune
> Project Manager, EPCC
> 
> Email: ibet... at epcc.ed.ac.uk
> Twitter: @IainBethune @PrimeGrid @CP2Kproject
> Web: http://www2.epcc.ed.ac.uk/~ibethune
> Tel/Fax: +44 (0)131 650 5201/6555
> Mob: +44 (0)7598317015
> Addr: 2404 JCMB, The King's Buildings, Peter Guthrie Tait Road, Edinburgh, EH9 3FD
> 
>> On 21 Jul 2016, at 21:42, TheShabbyblue <ddd... at gmail.com> wrote:
>> 
>> When i run cp2k with /QS/benchmark/H2O-256.inp the program crash with segmentation fault. I compiled cp2k with the attached file.
>> 
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>> <phi-intel-mic-16.0.2(2).psmp>
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