[Nek5000-users] fix projection for multiple passive scalars

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

Yes, this is a bug.


Sorry - Because of another issue (now resolved), I hadn't been

attending to this part of projection yet (since it was essentially

broken before).


I'll try to get this fixed asap.


Paul


________________________________
From: Nek5000-users <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: Thursday, October 19, 2017 3:50:23 AM
To: nek5000-users at lists.mcs.anl.gov
Subject: [Nek5000-users] fix projection for multiple passive scalars

Hi Neks,

in order to use projection (p94!=0) for one temperature field and at
least one additional passive scalar, I believe that the variables
napproxt and approxt need to be extended by the size of ldimt. See the
attached git-diff.txt for my changes to the code.

When I adjust the code like that, projection for veloctity, temperature
and all passive scalars works, otherwise it fails with:

...
22  Error Hmholtz TEMP     100          NaN          NaN 1.0000E-08
22proj_ortho:    1   2 TEMP   Detect rank deficiency: NaN         NaN
22  Project PS 1                  NaN          NaN          NaN 1   0
22  Error Hmholtz PS 1     100          NaN          NaN 1.0000E-08
22proj_ortho:    1   2 PS 1   Detect rank deficiency: NaN         NaN
22  Project PS 2                  NaN          NaN          NaN 1   0
22  Error Hmholtz PS 2     100          NaN          NaN 1.0000E-08
22proj_ortho:    1   2 PS 2   Detect rank deficiency: NaN         NaN
...

Can one of the developers please confirm and if confirmed include it in
the master branch?


Best,
Steffen Straub


--
Karlsruhe Institute of Technology (KIT)
Institute of Fluid Mechanics

M.Sc. Steffen Straub
Doctoral Researcher

Kaiserstraße 10
Building 10.23
76131 Karlsruhe, Germany

Phone: +49 721 608-43027
E-mail: steffen.straub at kit.edu
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Registered office:
Kaiserstraße 12, 76131 Karlsruhe, Germany

KIT – The Research University in the Helmholtz Association

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