open TELEMAC-MASCARET The mathematically superior suite of solvers

Dear All,

This is in regard with the connection between TELEMAC-3D and Delft3D. I have read the related post, www.opentelemac.org/index.php/kunena/16-...-delwaq?limitstart=0, which is quite helpful.

As explained by Chi-Tuan, there are only seven basic keywords that you need for successful linking between T3D and Df3D which are as follows
VOLUMES DELWAQ FILE,
EXCHANGE AREAS DELWAQ FILE,
VERTICAL FLUXES DELWAQ FILE,
BOTTOM SURFACES DELWAQ FILE,
EXCHANGES BETWEEN NODES DELWAQ FILE,
NODES DISTANCES DELWAQ FILE,
DELWAQ STEERING FILE

I have configured my T3D steering file with proper keyword and am running things in parallel, simulation finishes in successful manner.

The problem is that the way my cluster is set-up, when I am conducting hydrodynamic simulation in parallel, after the simulation is over, I execute the utility "gretel_autop" to merge all the domain-decomposed files together, I feed the utility with:
GLOBAL GEOMETRTY FILE = mymodel.slf
RESULT FILE = T3DRES
NUMBER OF PROCESSOR = 36

The resulting T3DRES is the result of my hydrodynamic simulation. My question is what is the utility that I should execute to get the relevant Delft3D input files. I do see that in the folder where "gretel_autop" is located there are three other utilities
a) gredelhyd_autop
b) gredelpts_autop
c_ gredelseg_autop

All help is greatly appreciated.

Kind regards,
Sumit

Hello Sumit,

If you look at the dictionnary of TELEMAC-3D telemac3dv6p2.dico, for each file, there is an argument called SUBMIT. The last item describes the behaviour of the code when running a parallel computation.
For example, SELAFIN needs to run the gretel program to merge the files at the end.
In your case:
- GREDELPTS needs to run the gredelpts program to merge the files for DELWAQ where values are located at the nodes of the TELEMAC mesh at the end,
- GREDELSEG needs to run the gredelseg program to merge the files for DELWAQ where values are located at the edges of the TELEMAC mesh at the end (two files),
- GREDELMET needs to run the gredelseg program to be coherent with what is expected (specific treatments for the three files),
- GREDELHYD needs to run the gredelhyd program to write the DELWAQ steering file with the correct number of nodes and exchanges, in the original mesh (before partitionning).

Hope this helps,

Chi-Tuan

Thanks a ton Chi-Tuan, this really helped.

Kind regards,
Sumit