[Nek5000-users] Load_fld() without restart

[nek5000-users at lists.mcs.anl.gov]

Hi Josh,

Thank you for your answer. We had already considered using this approach 
but we have a few queries. We would like to load a .fld file at each 
time step, which means the process might become very costly. Do you have 
any idea of the cost (in time) of such a method? Also, what becomes of 
the variables calculated during the previous time steps?

Thanks again,

Holly

Le 17/01/2014 14:21, nek5000-users at lists.mcs.anl.gov a écrit :
> Hi Holly,
>
> If you wanted to load a .fld file without copying over your variables, 
> you could do something like
>
> ! Create temporary storage
> real tmp1(lx1*ly1*lz1*lelv), tmp2(lx1*ly1*lz1*lelv), ...
>
> ! Copy simulation fields to temporary variables
> call copy(tmp1,vx,nx1*ny1*nz1*nelv)
> ...
>
> ! Load field file and do whatever work you want to do with it
>
> ! Copy simulation fields back to nek variables
> call copy(vx,tmp1,nx1*ny1*nz1*nelv)
>
>
> You should be able to use some of the Nek scratch arrays to store your 
> temporary variables (instead of taking up more memory with the 
> explicit declaration), but I'm not sure at the moment which scratch 
> arrays load_fld() uses.
>
> - Josh
>
>
>
> On Fri, Jan 17, 2014 at 4:56 AM, <nek5000-users at lists.mcs.anl.gov 
> <mailto:nek5000-users at lists.mcs.anl.gov>> wrote:
>
>     Hi Neks !
>
>     Is there a way to load a .fld file during a simulation (in the
>     same way load_fld() does) but without doing a complete restart of
>     all the variables ?
>
>     Thanks for any help !
>
>     Holly
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>
>
>
> -- 
> Josh Camp
>
> "All that is necessary for the triumph of evil is that good men do 
> nothing" -- Edmund Burke
>
>
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