[QE-users] weird CPU and WALL time report

[Paolo Giannozzi]

 Fixed in the qe-6.3-backports branch:
https://gitlab.com/QEF/q-e/commit/29164dbf9ab97a7e6e4be04ac3ae1fa721b8871b

Paolo

On Mon, Feb 4, 2019 at 2:36 PM IORI, Federico <federico.iori at airliquide.com>
wrote:

>  Hi all.
> Sorry to bother by such a question but I found several times  with version
> 6.3   a weird correspondence between CPU time and WALL time. (see attach
> file reports)
>
> For example in several runs I got at the end of my pw.out file
>
> *PWSCF        :     1h12m CPU       12h 1m WALL*
>
> *      16h*
>
> while the REAL wall time obtained as the difference between the starting
> time on the header and the ending time at the bottom of the output file is
> really 1h 12m in this case
>
> It seems to me the numbers of the  wall time are reversed wrt the CPU time
> in the writing procedure.
> I tried to find the routine printing this last PWSCF line but I cannot
> find it.
>
> My questions:
> 1) is normal this behaviour?
> 2) does someone already noted it  ?
> 3) should I start to worry about  my compilation ?
> 4) can you tell me how is called such routine printing the PWSCF execution
> time?
>
> Thanks for now!
> With the best
>
>
> --
> Federico IORI
>
> Computational material scientist
>
> Paris-Saclay Research Center
>
> 1 chemin de la Porte des Loges
> <https://www.google.com/maps/place/Air+Liquide/@48.8297381,2.2016685,11.75z/data=!4m5!3m4!1s0x47e67e61a4fbbdc7:0xca3bea9e80059880!8m2!3d48.7630415!4d2.1333045>
> Les Loges en Josas – 78354 Jouy en Josas cedex
> Mail: federico.iori at airliquide.com
>
> Phone: +33 7 621 605 15
>
>
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-- 
Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222
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