[CP2K:6329] FFTW "Wisdom" support removed?

Iain Bethune ibet... at epcc.ed.ac.uk
Mon Mar 30 14:43:26 UTC 2015

Hi Martin,

To really check it is working, I would run again with FFTW_PLAN_TYPE PATIENT and FFTW_WISDOM_FILE_NAME set to the location of your file - this should still read the wisdom, and the planning time should be much shorter, while still giving the expected performance. 

- Iain


Iain Bethune
Project Manager, EPCC

Email: ibet... at epcc.ed.ac.uk
Twitter: @IainBethune
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 30 Mar 2015, at 15:16, M. Brehm <brehmin... at googlemail.com> wrote:
> Hi,
> thank you for the detailed explanation. I just tried a small example with just one single calculation. I was able to create a Wisdom file with FFTW_PLAN_TYPE PATIENT just by specifying FFTW_WISDOM_FILE_NAME. Running the same calculation without FFTW_PLAN_TYPE PATIENT, but reading that Wisdom file instead, gives exactly the same performance as above. That's great. Thank you again for enlightening this :-)
> Best regards,
> Martin
> -- 
> You received this message because you are subscribed to the Google Groups "cp2k" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to cp2k+uns... at googlegroups.com.
> To post to this group, send email to cp... at googlegroups.com.
> Visit this group at http://groups.google.com/group/cp2k.
> For more options, visit https://groups.google.com/d/optout.

The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.

More information about the CP2K-user mailing list