Re: [ESPResSo-users] Espressomd-users Digest, Vol 39, Issue 30

[Wink, Markus]

Hello,

I found out, what the problem with the oif_init command was. In the 
object_in_fluid.tcl I had in my script-folder, the procedures had different 
names. For example, the oif_init was called "init_object_in_fluid". By 
replacing my object_in_fluid.tcl by the one I found on github, I could solve 
this problem. 

Anyway, the script is not running properly yet. I get the error message: 

Error: Unknown parameter velocity in lbboundary rhomboid
    while executing
"lbboundary rhomboid velocity 0.005 0 0 corner 0 1 1 a 1 1 1 b 0 [expr $boxY-1] 
1 c 0 1 [expr $boxZ-1] direction 1"

My compilation status is: 
ESPResSo-3.2.0
{ Compilation status { FFTW } { CONSTRAINTS } { AREA_FORCE_GLOBAL } { 
VOLUME_FORCE } { LB_BOUNDARIES } { EXTERNAL_FORCES } { SOFT_SPHERE } { MASS } { 
BOND_ANGLE } { LB } }

This is strange, since "velocity" requires LB_BOUNDARIES, which is activated. 
When running the test script "lb_planar.tcl" (simulating the couette-flow), I 
don't get the error message. 

Does anyone has a clue how to solve that problem?

Greetings,

Markus


-----Ursprüngliche Nachricht-----
Von: address@hidden [mailto:address@hidden Im Auftrag von Iveta Jancigova
Gesendet: Montag, 3. Februar 2014 09:04
An: address@hidden
Betreff: Re: [ESPResSo-users] Espressomd-users Digest, Vol 39, Issue 30

Hi Markus,

it looks like your simulation is not using the object_in_fluid.tcl script.

First thing to check would be the scripts folder in your espresso working 
directory. The object_in_fluid.tcl should be located there. If it's not, that 
must be some compilation problem.

If it is there and still not working with your simulation, pls, try including 
it directly in the simulation ("source path/object_in_fluid.tcl" before using 
any oif commands ... or just "source object_in_fluid.tcl" if you make a local 
copy of the object_in_fluid.tcl). If this helps, it means your espresso is not 
accessing the scripts folder.

One more thing that is unrelated to this issue, but related to your original 
message: for the tutorial to run, you need to also have the LB_BOUNDARIES 
feature compiled in.

Best,
Iva

----- Správa od address@hidden ---------
      Dátum: Fri, 31 Jan 2014 09:49:40 -0500
         Od: address@hidden
Odpovedať na: address@hidden
    Predmet: Espressomd-users Digest, Vol 39, Issue 30
        Pre: address@hidden


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>    1. Tutorial: Object in Fluid (Wink, Markus)
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> Date: Fri, 31 Jan 2014 14:49:08 +0000
> From: "Wink, Markus" <address@hidden>
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> Subject: [ESPResSo-users] Tutorial: Object in Fluid
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> Hello everybody,
>
> I have a problem in running the tutorial Object-in-fluid tcl-script.  
> Whenever I call "oif_init" I get the error message:
>
> "error in startup script: invalid command name "oif_init"
>     while executing
> "oif_init"
>     (file "simulation.tcl" line 22)
>
> Obviously, my Espresso binary does not know what to do with the 
> command and the object_in_fluid_tcl script is not running. I am a bit 
> confused, since I have followed the tutorial step by step. I tried to 
> figure out where in the C-Code the oif_init command is defined, but 
> could find it anywhere.
> The features in my binaries are: FFTW, Constraints, Area_Force_Global, 
> Volume_Force, Mass, Bond_Angle, LB.
>
> Attached you will also find the config.log of my binary, I hope it helps.
>
> Greetings,
>
> Markus Wink