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! 


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: 

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





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


Message Boards

errors at the end of compilation on windows

Alejandro Paladio, modified 2 Years ago.

errors at the end of compilation on windows

Youngling Posts: 9 Join Date: 11/14/12 Recent Posts
Hey everyone, I hope you are doing great,

I finally manage to compile Delft3D (6864) on windows 7 and I get this errors:
Error 226 error LNK2001: unresolved external symbol PERF_FUNCTION_EROSILT morphology_kernel.lib(erosilt.obj)
Error 227 error LNK2001: unresolved external symbol PERF_FUNCTION_EQTRAN morphology_kernel.lib(eqtran.obj)
Error 228 fatal error LNK1120: 2 unresolved externals ..\..\lib\x64\Release\dynamic\d3dwaq_openpb.dll

And the final lines from the compilation procedure are:
81>------ Skipped Build: Project: flow2d3d_openda, Configuration: Release x64 ------
81>Project not selected to build for this solution configuration
========== Build: 71 succeeded, 1 failed, 0 up-to-date, 9 skipped ==========

And I can't run the third example. (1st and 2do run ok!)

Can you give me some suggestions, please!
Thanks in advance.

I am using an Intel Xeon CPU E4-2630 v3 @2.4 GHz. Intel parallel studio XE 2011, Visual studio 2010.

I attach some screen pics with the errors.

(I just see, that when I change the NPROC to over 5, I get the same errors in the first example)
Help please

Adri Mourits, modified 2 Years ago.

RE: errors at the end of compilation on windows

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

1. What is in the diagnosis file?
2. You try to run with FLOW using parallelMPI, what happens if you run it without parallelMPI (the script "run_flow2d3d.bat")? Are you able to run example "01_standard" in parallel? Did you read and start smpd according to the remarks in file "run_flow2d3d_parallel.bat" in example "01_standard"?

Don't bother about the compilation problems unless you plan to use d3dwaq_openpb.dll.