intro story D-Flow FM

 

D-Flow Flexible Mesh

D-Flow Flexible Mesh (D-Flow FM) is the new software engine for hydrodynamical simulations on unstructured grids in 1D-2D-3D. Together with the familiar curvilinear meshes from Delft3D 4, the unstructured grid can consist of triangles, pentagons (etc.) and 1D channel networks, all in one single mesh. It combines proven technology from the hydrodynamic engines of Delft3D 4 and SOBEK 2 and adds flexible administration, resulting in:

  • Easier 1D-2D-3D model coupling, intuitive setup of boundary conditions and meteorological forcings (amongst others).
  • More flexible 2D gridding in delta regions, river junctions, harbours, intertidal flats and more.
  • High performance by smart use of multicore architectures, and grid computing clusters.
An overview of the current developments can be found here.
 
The D-Flow FM - team would be delighted if you would participate in discussions on the generation of meshes, the specification of boundary conditions, the running of computations, and all kinds of other relevant topics. Feel free to share your smart questions and/or brilliant solutions! 

 

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We have launched a new website (still under construction so expect continuous improvements) and a new forum dedicated to Delft3D Flexible Mesh.

Please follow this link to the new forum: 
/web/delft3dfm/forum

Post your questions, issues, suggestions, difficulties related to our Delft3D Flexible Mesh Suite on the new forum.

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** PLEASE TAG YOUR POST! **

 

 

Sub groups
D-Flow Flexible Mesh
DELWAQ
Cohesive sediments & muddy systems

 


Message Boards

RE: errors in flow-wave coupling

EA
Ed Atkin, modified 7 Years ago.

errors in flow-wave coupling

Padawan Posts: 27 Join Date: 3/27/12 Recent Posts
Trying to run a coupled wave-flow model. I have successfully achieved this a number of times.
The model starts and I get forrtl: severe (157), and a list of unhapiness. Then the model just cracks on like a standalonf Flow model, no wave.
This run is signifcantly longer..............thats the only difference I can think of between this an previous runs.
Its not liking something about my wave setup. I tested it in standalone and it was fine.
Any help appreciated.

Ed

below is the log file:

--------------------------------------------------------------------------------

Command: run Delft3D-FLOW
Simultaneous FLOW and WAVE computation
Starting simultaneous FLOW and WAVE computation ...
--------------------------------------------------------------------------------
- Delft3D
- Deltares, Delft3D-WAVE Version 3.04.01.000000, Mar 30 2012, 12:37:34
- Open source
-
--------------------------------------------------------------------------------
*** MESSAGE: Delft3D-WAVE runs online with Delft3D-FLOW
Done reading input
Waiting for initialisation from FLOW
Starting Delft3D-FLOW computation ...
--------------------------------------------------------------------------------
Deltares, Delft3D-FLOW Version 4.00.07.000000, Mar 30 2012, 12:40:33
flow2d3d.dll entry RUNME
--------------------------------------------------------------------------------

Part I - Initialisation Time Dep. Data module...
runid : test12nosed
Part II - Creating intermediate files...
Part III - Initialisation of the Execution module...
Part IV - Reading complete MD-file...
Part V - Initialisation & checking input...
Part VI - Initialisation & checking second part...
Part VII - Initialisation output...
*** MESSAGE: Connected to the following 1 FLOW domain(s):
test12nosed
Initialising grids and grid mappings
Part VIII - Start Simulation...

Time to finish 0s, 0.0% completed, time steps left 547200
Time to finish 9h 44m, 0.0% completed, time steps left 547199

forrtl: severe (157): Program Exception - access violation

Image PC Routine Line Source
wave.exe 00471E67 Unknown Unknown Unknown
wave.exe 004355B2 Unknown Unknown Unknown
wave.exe 00480817 Unknown Unknown Unknown
wave.exe 004019C8 Unknown Unknown Unknown
wave.exe 0059F593 Unknown Unknown Unknown
wave.exe 00577BA3 Unknown Unknown Unknown
kernel32.dll 74DD33AA Unknown Unknown Unknown
ntdll.dll 77319EF2 Unknown Unknown Unknown
ntdll.dll 77319EC5 Unknown Unknown Unknown
Time to finish 9h 44m, 0.0% completed, time steps left 547198
Time to finish 9h 44m, 0.0% completed, time steps left 547197
Time to finish 9h 44m, 0.0% completed, time steps left 547196
Time to finish 9h 44m, 0.0% completed, time steps left 547195
Time to finish 9h 45m, 0.0% completed, time steps left 547194
Time to finish 9h 45m, 0.0% completed, time steps left 547193
Time to finish 9h 46m, 0.0% completed, time steps left 547192
Time to finish 9h 47m, 0.0% completed, time steps left 547191
Time to finish 9h 47m, 0.0% completed, time steps left 547190
.............................................................
SW
simon weppe, modified 7 Years ago.

RE: errors in flow-wave coupling

Youngling Posts: 14 Join Date: 3/28/12 Recent Posts
Hi there,

I ran into the exact same issue today.

Both Flow and Wave models work correctly as standalone, but I get the same error message as you do when I try to couple them.

"forrtl: severe (157): Program Exception - access violation"

I have been doing some quite a few coupled simulations before (for other grids) and never had this issue...

Did you find a fix for this ?
Has anyone suggestions about the cause of this error ?

cheers

simon
EA
Ed Atkin, modified 7 Years ago.

RE: errors in flow-wave coupling

Padawan Posts: 27 Join Date: 3/27/12 Recent Posts
Yeah hi simon,

I fixed it, I know I did. I just cant remeber how. So I will have to go back through notes/cases etc.
Will let you know if I find anything.
Adri Mourits, modified 7 Years ago.

RE: errors in flow-wave coupling

Yoda Posts: 1224 Join Date: 1/3/11 Recent Posts
Hi Simon, Ed,

The error message does not give any clue about what goes wrong. Debugging is needed.

Please check that the default example with coupled flow and wave (examples\03_flow-wave) is still working correctly.

Regards,

Adri
EA
Ed Atkin, modified 7 Years ago.

RE: errors in flow-wave coupling

Padawan Posts: 27 Join Date: 3/27/12 Recent Posts
Adri, Simon,

I have found the point in my project where this error was occuring, and I am also ready to run the example if needs be. However, my License has expired!!!!
So just waiting on that and wil have a look into it.

Regards
SH
Shawn Harrison, modified 7 Years ago.

RE: errors in flow-wave coupling

Padawan Posts: 70 Join Date: 6/25/12 Recent Posts
Hi Ed,

When you compiled the source code, I think that you didn't point to the license file location..
Basically, when you recently updated your exes with your newly compiled code, you replaced the files in the w32/menu location. If you still have the older files, try replacing the new w32/menu files with the old ones.. i think it should work for you in the meantime.

Cheers,
Shawn
EA
Ed Atkin, modified 7 Years ago.

RE: errors in flow-wave coupling

Padawan Posts: 27 Join Date: 3/27/12 Recent Posts
Hey Shawn,

Swapping my execs out didnt work for me. I will sit and wait for my new Lic

Cheers
Adri Mourits, modified 7 Years ago.

RE: errors in flow-wave coupling

Yoda Posts: 1224 Join Date: 1/3/11 Recent Posts
Hi Ed,

You only need a license for the GUI. You can run calculations without a license file by using a run-script. All examples (next to the src directory) contain run-scripts for Windows and Linux.

Regards,

Adri