[Nek5000-users] how to dumping velocity data in each processor to file

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

You can set param(66)=0 in usrdat2:

      param(66)=0

this will cause the output to be in ascii, in a .fld file...

I wouldn't recommend this for large parallel cases, however, as the ascii output
is not fast.

Paul

________________________________
From: nek5000-users-bounces at lists.mcs.anl.gov [nek5000-users-bounces at lists.mcs.anl.gov] on behalf of nek5000-users at lists.mcs.anl.gov [nek5000-users at lists.mcs.anl.gov]
Sent: Wednesday, March 08, 2017 8:27 PM
To: nek5000-users at lists.mcs.anl.gov
Subject: Re: [Nek5000-users] how to dumping velocity data in each processor to file


Hi Tanmoy,

Thanks! In fact I can use the outpost routine, but I don't know how to read the hisxxxx.f0001 file except by VisIt . I want to write down the data in a familar format so that I can handle it very easy. Or can I transform the outpost format into ASCII that I can also read it easy?

Best regards!
Hu


-----Original Messages-----
From: nek5000-users at lists.mcs.anl.gov
Sent Time: Thursday, March 9, 2017
To: nek5000-users at lists.mcs.anl.gov
Cc:
Subject: Re: [Nek5000-users] how to dumping velocity data in each processor to file

Hi Hu,

Is there any specific reason why you cant use the outpost routine.
call outpost(vx,vy,vz,pr,t,'his') might be a better option.

Best Regards,
Tanmoy

On Wed, Mar 8, 2017 at 4:32 AM, <nek5000-users at lists.mcs.anl.gov<mailto:nek5000-users at lists.mcs.anl.gov>> wrote:

hi, all

I'm trying to write down velocity in each processor into files. Below is an sample in the subroutine userchk:

open(unit=80,file='result.dat')
write(80,*) 'x, y, z, u, v, z, p'
do e=1,nelv
   do k=1,lz1
      do j=1,ly1
         do i=1,lx1
            write(80,1) xm1(i,j,k,e),ym1(i,j,k,e),zm1(i,j,k,e),
&           vx(i,j,k,e),vy(i,j,k,e),vz(i,j,k,e),pr(i,j,k,e)
         enddo
      enddo
   enddo
enddo
1 format(1p15e17.9)

But in this case ,I can get the data only in one processor. When I use more than one processor, how to get velocity in all processors?



Best regards!

Hu

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