[Nek5000-users] Maximum number of history points using hpts()

nek5000-users at lists.mcs.anl.gov nek5000-users at lists.mcs.anl.gov
Thu Mar 29 10:57:34 CDT 2018


What's your lhis? How many MPI ranks are you using?

-----Original message-----
> From:nek5000-users at lists.mcs.anl.gov <nek5000-users at lists.mcs.anl.gov>
> Sent: Thursday 29th March 2018 17:54
> To: nek5000-users at lists.mcs.anl.gov
> Subject: Re: [Nek5000-users] Maximum number of history points using hpts()
> 
> I'm executing 9 times nek5000 to call hpts (using different
>       case.his files containing each 39960 points, using a shell script)
>       because I need When I'm using 359640=9*39660 points 
> This works perfectly fine. However when I'm trying to use a
>       single file in order to execute nek5000 once, it gives the
>       following error following error when the number of points is equal
>       to 359640 : 
> 
>       dump history points
>        reading history points
>        found       359640  points
>       APPLICATION TERMINATED WITH THE EXIT STRING: Segmentation fault
>       (signal 11)
> 
> I guess I'm encountering some memory problems..
> 
> Best regards,
> 
> Arnold
>     
> Le 29/03/2018 à 17:27,
>       nek5000-users at lists.mcs.anl.gov <mailto:nek5000-users at lists.mcs.anl.gov> a écrit :
> What do you mean with doesn't work anymore. How does it manifest itself?
> -----Original message-----
> From:nek5000-users at lists.mcs.anl.gov <mailto:From:nek5000-users at lists.mcs.anl.gov> <nek5000-users at lists.mcs.anl.gov> <mailto:nek5000-users at lists.mcs.anl.gov>
> Sent: Thursday 29th March 2018 17:23
> To: nek5000-users at lists.mcs.anl.gov <mailto:nek5000-users at lists.mcs.anl.gov>
> Subject: Re: [Nek5000-users] Maximum number of history points using hpts()
> Hello Pierre, 
> In my case my case.his file contains 39960 points and lhis=39961,
>       however when I increased the first value and the lhis variable
>       accordingly it doesn't work anymore. Is there something I'm
>       missing?
> Best,
> Arnold
> Le 29/03/2018 à 16:30,
>       nek5000-users at lists.mcs.anl.gov <mailto:nek5000-users at lists.mcs.anl.gov> <mailto:nek5000-users at lists.mcs.anl.gov> <mailto:nek5000-users at lists.mcs.anl.gov> a écrit :
>     Hi
>       Arnold,
>       You can set it in the SIZE file:
>       param(lhis=100) ! # of pts a proc reads from hpts.in
>                                   ! Note: lhis*np > npoints in
>       hpts.in
>       best,
>       Pierre
>       On 2018-03-29 16:14, nek5000-users at lists.mcs.anl.gov <mailto:nek5000-users at lists.mcs.anl.gov> <mailto:nek5000-users at lists.mcs.anl.gov> <mailto:nek5000-users at lists.mcs.anl.gov> wrote:
>       Hi Neks,
>         I was wondering if there is any maximum number of history points
>         one should put in the case.his file. If someone could help me
>         regarding that topic, I haven't found any information yet.
>         Thank you for your time,
>         Best,
>         Arnold
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> -- 
> Arnold Wakim
>           Ph.D. Student
>           Département Aérodynamique, Aéroélasticité, Acoustique
>           INST
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>     
> -- 
> Arnold Wakim
>           Ph.D. Student
>           Département Aérodynamique, Aéroélasticité, Acoustique
>           INST
>           Tél: +33 1 46 23 51 83
> 
>           ONERA - The French Aerospace Lab - Centre de Meudon
>           8, rue des Vertugadins - 92190 MEUDON
>           
>           Nous suivre sur : www.onera.fr <http://www.onera.fr> | Twitter <http://www.twitter.com/@onera_fr> |  LinkedIn <http://www.linkedin.com/company/onera> | Facebook <http://www.facebook.fr/thefrenchaerospacelab>
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