[QE-users] weird CPU and WALL time report

[IORI, Federico]

Thanks!

On Mon, Feb 4, 2019 at 2:56 PM Paolo Giannozzi <p.giannozzi at gmail.com>
wrote:

> 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
>
> _______________________________________________
> users mailing list
> users at lists.quantum-espresso.org
> https://lists.quantum-espresso.org/mailman/listinfo/users



-- 
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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