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

 

Message Boards

problem running standard parallel example

LT
Luther Terblanche, modified 7 Years ago.

problem running standard parallel example

Youngling Posts: 4 Join Date: 6/5/12 Recent Posts
Hi,

I have downloaded and compiled d3d flow (tag 4.00.07.0892) successfully. The .\examples\01_standard\run_flow2d3d.bat case runs without problems, but the run_flow2d3d_parallel.bat is giving problems.

I have the feeling this is something simple. Please can someone assist me?

I am getting the following error:
D:\dev\d3d_4\examples\01_standard>run_flow2d3d_parallel.bat
Unknown option: -d
Unable to connect to 'JKIEVIET-NB2:8676',
sock error: generic socket failure, error stack:
MPIDU_Sock_post_connect(1228): unable to connect to JKIEVIET-NB2 on port 8676, e
xhausted all endpoints (errno -1)
MPIDU_Sock_post_connect(1275): unable to connect to JKIEVIET-NB2 on port 8676, N
o connection could be made because the target machine actively refused it. (errn
o 10061)
ReadFile() failed, error 109
unable to start the local smpd manager.
Press any key to continue . . .

Kind Regards
Luther
parallel mpiexec flow2d3d
Adri Mourits, modified 7 Years ago.

RE: problem running standard parallel example

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

Did you execute
smpd -install
before starting the run? See comments in "...\examples\01_standard\run_flow2d3d_parallel.bat".

Regards,

Adri
CE
Christopher Esposito, modified 7 Years ago.

RE: problem running standard parallel example

Padawan Posts: 35 Join Date: 10/16/12 Recent Posts
I had this same issue, even after running "smpd -install". I was also getting wrong smpd version errors.

I was able to fix all of this by running the mpiexec.exe that was already installed on my system. For me, these two lines in run_flow2d3d.bat did the trick.

set MPIPATH="C:\Program Files (x86)\Common Files\Intel\Shared Libraries\redist\intel64\mpirt\"
%MPIPATH%mpiexec -n 4 %exedir%\deltares_hydro.exe %argfile%
Adri Mourits, modified 7 Years ago.

RE: problem running standard parallel example

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

Thank you for posting this solution. I added it (optionally) to the example script "<yourDelft3DCode>\examples\01_standard\run_flow2d3d_parallel.bat" in the trunk in revision 1995.

I think the key point is that both the "smpd" and the "mpiexec" must have the same version number. So OR use both of them from your local system, OR use both of them from "<yourDelft3DCode>\bin\win32\flow2d3d\bin".

Regards,

Adri