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DELWAQ

DELWAQ is the engine of the D-Water Quality and D-Ecology programmes of the Delft3D suite. It is based on a rich library from which relevant substances and processes can be selected to quickly put water and sediment quality models together.

The processes library covers many aspects of water quality and ecology, from basic tracers, dissolved oxygen, nutrients, organic matter, inorganic suspended matter, heavy metals, bacteria and organic micro-pollutants, to complex algae and macrophyte dynamics. High performance solvers enable the simulation of long periods, often required to capture the full cycles of the processes being modelled.

The finite volume approach underlying DELWAQ allows it to be coupled to both the structured grid hydrodynamics of the current Delft3D-FLOW engine and the upcoming D-Flow Flexible Mesh engine (1D-2D-3D) of the Delft3D Flexible Mesh Suite (or even other models such as TELEMAC).

'DELWAQ in open source' is our invitation to all leading experts to collaborate in further development and research in the field of water quality, ecology and morphology using Delft3D. Feel free to post your DELWAQ related questions or comments in this dedicated forum space. If you are new to DELWAQ, the tutorial (in the user manual) is a good place to start. A list of DELWAQ related publications is available here.

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D-Flow Flexible Mesh
DELWAQ

Cohesive sediments & muddy systems

 


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Partitioning mdu file using command line interface

RW
Roger Wang, modified 3 Years ago.

Partitioning mdu file using command line interface

Youngling Posts: 8 Join Date: 10/12/15 Recent Posts
Hi,

I have used dflowfm-cli.exe to partition my case for parallel running. I am using the command below:

dflowfm-cli.exe --partition:ndomains=4:icgsolver=7 example.mdu

The mesh file can be successfully partitioned into 4 example_000x_net.nc files but no example_000*.mdu files appear as described in the manual.

Could anyone give me some help?

Thanks.
Roger
RW
Roger Wang, modified 3 Years ago.

RE: Partitioning mdu file using command line interface (Answer)

Youngling Posts: 8 Join Date: 10/12/15 Recent Posts
Hi,

I have figured it out. The partitioning can be done using the GUI shell and no command line script is needed anymore, i.e. mesh files and mdu files are well processed in shell.

The provided script is a little fuzzy to use in my windows 7, 40-core machine. I ended up directly calling mpiexec.exe and it works well now.

A following issue is that I cannot find much improvement in parallel running compared with serial. I will test with different number of cores and see how the efficiency improves.

Thanks.
Roger
solved