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

run flow - wave parallel

NB
Nophi Biton, modified 6 Years ago.

run flow - wave parallel

Padawan Posts: 38 Join Date: 8/1/13 Recent Posts
Hello everyone,

I am able to run flow model (without wave) in parallel mode using the sample scripts provided . Also I am able to run coupled flow-wave but without using parallel mode. Now, I want to run a coupled flow-wave model in parallel mode to reduce computing time using run_flow2d3d_parallel_wave.bat but it doesn't work.

The D3D-Flow program just stops and points to the error message dio-d_hydro-errors.txt.

The error says in dio-d_hydro-errors.txt:

DioError 901: Could not set available: FLOW2WAVE_DATA.txt_.stream
DioError 901: Could not set available: FLOW2WAVE_DATA.txt_.stream
DioError 901: Could not set available: FLOW2WAVE_DATA.txt_.stream
DioError 901: Could not set available: FLOW2WAVE_DATA.txt_.stream
DioError 901: Could not set available: FLOW2WAVE_DATA.txt_.stream
DioError 901: Could not set available: FLOW2WAVE_DATA.txt_FLOW2WAVE_DATA.data
DioError 901: Could not set available: FLOW2WAVE_DATA.txt_FLOW2WAVE_DATA.data
DioError 901: Could not set available: FLOW2WAVE_DATA.txt_FLOW2WAVE_DATA.data

I have no idea what it means and how to resolve it. Any help? Anyone encountered this?

My compiled code is tagged 2703, I am running Delft-3D in MS Windows 8.
Adri Mourits, modified 6 Years ago.

RE: run flow - wave parallel (Answer)

Yoda Posts: 1221 Join Date: 1/3/11 Recent Posts
Hi Nophi,

If your working directory is a network drive, switch to using a local drive. The communication between FLOW and WAVE is sensitive for (remote) file system delays/permissions.

Try the latest tagged version, currently https://svn.oss.deltares.nl/repos/delft3d/tags/3574/
Note that https://svn.oss.deltares.nl/repos/delft3d/tags/2703/examples/03_flow-wave/ does not contain file run_flow2d3d_parallel_wave.bat

It works fine on my Windows7 machine. May be Windows 8 has improved policies related to files being written/read by two different programs (FLOW and WAVE).

Regards,

Adri