Delft3D Flexible Mesh

XBeach wave simulation error

2023-07-15T21:18:30Z

I'm new to XBeach and I'm trying to learn by myself how the model works. Despite that I keep getting the same error again and again and really don't know why.

Quit XBeach since computational time implodes/explodes
Please check the velocities at the end of the simulation
dtref 1.12948787245309
par%dt 299.393819052059
An extra output timestep is created to inquire the last timestep
before an error occured

Availability of Delft3D FM Graphical User Interface (GUI) (free of charge)

2023-06-03T19:15:08Z

It was announced that the GUI for Delft3DFM would be available in June 2023. Does someone know how to get it? As probably the site is not updated but as per the announcement, the GUI is available as it is already June. Does someone know how to get it? Thanks

RE: Installing Delft3D FM Suite 2023.01 HMWQ

2023-05-27T17:48:51Z

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The results of bottom shear stress in his file and map file are different

2023-05-23T00:18:48Z

I built a 3d flow only model which had 20 vertical layers(kmax = 20). But the bottom shear stress in his file and map file are different.
In the his file, the bottom shear stress named Mean bottom shear stress, unit is pa. And in the map file, the bottom shear stress named Total bed shear stress, unit is N m-2.
In the his file, the bottom shear stress is very big as shown in the right, it seems wrong. I compared map file result with observation data as shown in the left, it seems the result of map file is correct. But when i run 2d model (kmax = 0), his file and map file are same and correct.
I also built a3d flow-wave coupled model, and in the coupled model the results of bottom shear stress in his and map file are same and correct.
Why the bottom shear stress in his file are wrong when run flow only model?

Salinity Modeling Questions

2023-05-03T15:42:29Z

Hello,
I am developing a salinity model in a region with very high evaporation rates. I am using an older version of the software that necessitates me prescribing the evaporation as a negative rainfall rate.

after several months of running, some areas in the simulation are showing values of 400+ PPT of salinity. I have tried to address this by modifying the dry cell threshold, which helps to some degree, but I am wondering if there are other tools for addressing this besides reducing the evaporation time series.

I see a value called "Sal0abovezlev" in the MDU file but when I try and change it, the model will not run.

Any thoughts?

Thanks,
Russell Nasrallah
United States Army Corps of Engineers

running delwaq2 in parallel

2023-04-04T17:17:30Z

"I'm running delwaq2 on Ubuntu 22.04 LTS using the precompiled binaries I received through the beta testing program, version 2023.01. I have been playing around with the NOTHREADS constant to see if I can parallelize the computations somewhat. While NOTHREADS does seem to change the number of threads assigned to the process, when I run the "top -H -p PID" command, it appears that only one of those threads is ever actually doing any computations. Do you have any advice?"

vertical layer

2023-03-17T03:05:44Z

Hi, i use the delft3d fm 2022, i want to set different vercial layers. i do as the manual said. i add "StretchType=1"and"StretchCoef=4.0, 5.9, 8.7, 12.7, 18.7, 18.7, 12.7, 8.7, 5.9, 4.0" in the mdu file,but it doesnt work. how to set different layers?

Export boundary condition file .bnd from DELFT 3D FM

2023-03-07T13:54:23Z

Hi everybody,
I reach to you because I use Delft3D FM for pre-processing my DELFT3D WAVES simulations. I create all the domain (grid, .dep and boundary), I can export .grd and .dep but I can't with the boundary file.
And when I tried to run in the software I have an error "Initialization of waves has failed".

The model and the error in attachment.

Thanks in advance for your help,
Soulayrol Mathieu.

next Linux distribution and version

2023-01-27T13:51:31Z

the get-started pages (Delft3D and Delft3D-FM) say that CentOs7 or RedHat7 is required as linux version.
Red Hat Linux 7 is end-of-life for years already (or was RHEL7 meant there?), CentOs7 will be maintained till 2024 but will not have a successor.

One of our researchers has to start with Delft3D in Linux and would like to continue with that installation for the coming years. What would be the best distribution and version to start with now and where to upgrade to in future?

Thanks,
Roel, IHE Delft

Building in Windows 10 with Visual Studio 2022 and Intel oneAPI 2022

2023-01-25T17:41:22Z

Hello!

I was able to build Delft3D FM (141208) with no problem in Windows 10 with Visual Studio 2022 and Intel oneAPI 2022

{root}/build.bat:

Lines 195 to 200:

1	if NOT "%VS2022INSTALLDIR%" == "" (
2	set vs=2022
3	echo Found: VisualStudio 17 2022
4	if NOT "%IFORT_COMPILER22%" == "" (
5	set ifort=22
6	echo Found: Intel Fortran 2022

Lines 312 and 313:

1	if "!vs!" == "2022" (
2	set generator="Visual Studio 17 2022"

Lines 357 to 359:

1	if !generator! == "Visual Studio 17 2022" (
2	echo "Calling vcvarsall.bat for VisualStudio 2022 ..."
3	call "%VS2022INSTALLDIR%\VC\Auxiliary\Build\vcvarsall.bat" amd64

For other projects and Delft3D FM I have the following VS 2022 workloads installed:

1	Microsoft.VisualStudio.Workload.CoreEditor
2	Microsoft.VisualStudio.Workload.NativeDesktop
3	Microsoft.VisualStudio.Component.VC.Tools.x86.x64
4	Microsoft.VisualStudio.Component.VC.DiagnosticTools
5	Microsoft.VisualStudio.Component.Windows11SDK.22621
6	Microsoft.VisualStudio.Component.VC.CMake.Project
7	Microsoft.VisualStudio.Component.VC.ATL
8	Microsoft.VisualStudio.Component.VC.ATLMFC
9	Microsoft.VisualStudio.Component.VC.CLI.Support
10	Microsoft.Component.VC.Runtime.UCRTSDK

Downloaded and installed Intel:

Fortran Compiler
MPI
MKL

ENVs:

I_MPI_ONEAPI_ROOT = C:\Program Files (x86)\Intel\oneAPI\mpi\2021.7.1
IFORT_COMPILER22 = C:\Program Files (x86)\Intel\oneAPI\compiler\2022.2.1\windows\
ONEAPI_ROOT = C:\Program Files (x86)\Intel\oneAPI\
VS2022INSTALLDIR = C:\Program Files\Microsoft Visual Studio\2022\Community

{root}/build.bat all was enough

When I try oneAPI 2023, it seems that it tries to copy files from a folder {root}/src/third_party_open/intelredist/ and doesn't copy important libs like impi.dll

Wavh file is not found

2023-01-17T06:46:14Z

I ran a coupled flow_wave model with 96 cores 48 per each on a cluster but the wavh file cannot be generated. However, when I used only one core for waves I got the wavh file without any problems. Did anybody face the same problem before and how did you solve it?

Running suggested example results in: symbol lookup error undefined symbol

2023-01-11T07:47:01Z

On linux after compile. When trying to run the suggested example <myCode>/examples/12_dflowfm/test_data/e100_f02_c02-FriesianInlet_schematic_FM the error message symbol lookup error: <myCode>/build_all/lnx64/bin/../bin/dimr: undefined symbol: __libm_feature_flag_x pops up. Does anyone know what is going on here?
From file size alone it is clear that libimf.so in lnx64/lib is not copied from one of the files in the tree under /opt/intel/oneapi. Could that be the cause?

Found the probable cause: I am compiling netcdf with the intel compilers. Reason: the gnu compiler suite version used in versions 8 or 9 of Redhat clones to build epel packages is not one of those for which the intel compiler suite recognizes the netcdf module file. Going back to the tests for netcdf-c I spotted a failure with the same symbol problem. While researching this I found a website stating that hdf5 needs to be compiled with the same compiler as netcdf. Doing so resolved this particular problem.

On linux Intel 2023 adds errors

2023-01-09T12:34:41Z

The new 2023 Intel OneAPI produces errors. Error numbers are #7938 and #7983. These errors seem to spring from a conflict between a variable c_net_file_in being declared of fixed length
```
character(kind=c_char), intent(in) :: c_netfile_in(MAXSTRLEN)
```
and a variable netfile_in being declared with length derived from c_netfile_in

```
character(len=strlen(c_netfile_in)) :: netfile_in
```
while making c_netfile_in variable length removes the error messages, I have not checked whether that breaks things. Does anyone know?

RE: The argument to C_LOC must be a variable with POINTER or TARGET attr

2023-01-09T12:10:13Z

In principle adding target to the definitions on lines 109 and 116 of src/engines_gpl/dflowfm/packages/dflowfm_kernel/src/dflowfm_data/m_flowexternalforcings.f90 makes the error go away. Moreover, given that adding target only means the varieable might be a pointer target, this shuodl not cause other problems.

RE: Delft3D FM spatially varying meteo data

2023-01-03T10:49:32Z

To be more accurate: When I try to guess what it should look like, making a .hac-file and a separate grid in a .grd-file, I get the following error:
forrtl: severe (59): list-directed I/O syntax error, unit -154, file gridfile.grd

Delft3D FM spatially varying meteo data

2023-01-02T14:33:16Z

I'm working on model which needs spatially varying time series of meteorological data, i.e. a composite temperature model. I'm struggling to get the input of data working. The data would be relative humidity, air temperature and cloudiness, and the user manual suggests the use of .hac-files, but it doesn't open up the format. Could someone give an example of a working .hac-file, or any other working method to supply spatial meteorological data.
Best regards,
Henrik

RE: Notes on install delft3fm (tag version 141346) on windows laptop

2022-12-26T18:37:03Z

Hi youngling,

thanks for asking, I just updated my notes and I hope this new version is more clear and useful to you.

I have not seen the error you met before so sorry I don't know what might be the cause. I would suggest to start with a clean system and install everything step by step, make sure you install all components needed when installing visual studio, I think this is where things normally go wrong cause some components might be missed.

since you are using oneapi 2023, I would suggest to pay more attention to the part about oneapi 2022 in my notes and take necessary actions when you install with oneapi 2023.

hope it goes well with your installation.

Cheers,
Zhiling

RE: Notes on install delft3fm (tag version 141346) on windows laptop

2022-12-23T09:08:30Z

Thanks for your explanation.
in my case, i used intel oneapi 2023(other is same).
I followed your method exactly but got an error(please check under cc3.png file)
(also alot of warnings)

i guess that intel oneapi 2023 is something different from 2021.
do you have any idea about solveing this ploblem.

The argument to C_LOC must be a variable with POINTER or TARGET attr

2022-12-19T07:47:06Z

I am working on compilation of Delft3D-FM on OracelLInux 8.7 with the intel oneapi 2022.3 base and HPC tools.
The Intel compiler from oneapi 2022.3 gives the following error messages for the delft3dfm tag 142074 source code
```
src/engines_gpl/dflowfm/packages/dflowfm_lib/src/unstruc_dll_api.F90(104): error #9022: The argument to C_LOC must be a variable with the POINTER or TARGET attribute.   [NBNDZ]
      x = c_loc(nbndz)
----------------^
src/engines_gpl/dflowfm/packages/dflowfm_lib/src/unstruc_dll_api.F90(108): error #9022: The argument to C_LOC must be a variable with the POINTER or TARGET attribute.   [KBNDZ]
      x = c_loc(kbndz)
----------------^

```
A search on internet suggests this is new behavior in the intel 2022.3 version of the compiler. Does anyone know a work-around for this?

RE: Installing Delft3D FM Suite 2023.01 HMWQ

2022-12-13T18:06:39Z

Hi Tjitske

Thank you very much for the answer. It occurs to me that I missed the recent license.
It is solved after I apply the new license.

Best regards,
Munawir