Learning Forum

[abd fs]

Hello everyone!

 

when I want to use UDF for as an input condition of a turbulent flow with a model K-w SST  I received this message.

In your opinion how can I solve this problem ?

 

 

 

Error: The UDF library you are trying to load (C:UsersTOSHIBADocumentsmoiliuo_filesdp0FFFFluentlibudf) is not compiled for 2ddp on the current platform (win64).nnLe chemin d?accès spécifié est introuvable.

nnC:UsersTOSHIBADocumentsmoiliuo_filesdp0FFFFluentC:UsersTOSHIBADocumentsmoiliuo_filesdp0FFFFluentlibudfwin642ddplibudf.dll

Error Object: #f

Best regards,

SER

[Amine Ben Hadj Ali]

Do you have a compiler installed? If Yes try to compile at first from Standalone Fluent. 

If you have already compiled the UDF and loaded it then please unload first, compile it again and try again.

 

[abd fs]

Dear AMINE,

Thank you for sharing these information here.

what's this Standalone Fluent and how can I found this technique

If it is possible, can ou give me  an explain about the schema ?

Best regards,

SER

[Rob]

Stand alone Fluent is launched from the Start menu in Windows and is nearly identical to the Workbench variant. The reason for testing the compiler there is it's easier to make sure the .c file is in the right place.  You will need a C compiler, and that compiler has to be configured. 

If it's just setting turbulence values you can probably interpret the code into Fluent. There are a few threads covering compilers on here, please have a look in 

/forum/forums/topic/ansys-19-0-visual-studio-intel-parallel-studio-xe-version-required-for-upfs/

As a starting point. 

[Amine Ben Hadj Ali]

Please review the already posted answers.

[abd fs]

Dear Amine,

I use code Block ,this is the message I received

Someone can help me? With some tips, comments?

Best regrads,

SERRARE

 
 

 

30/5000

 








 

 

[Amine Ben Hadj Ali]

There are a few threads covering compilers on here, please have a look in

/forum/forums/topic/ansys-19-0-visual-studio-intel-parallel-studio-xe-version-required-for-upfs/

I am not sure if codeblock will work and it is not supported

Or try to interpret in Fluent.

[abd fs]

Dear friend,

I installed Visual studio 2013 for ANSYS 17.0 but the problem remains the same.

Best regards,

SER

[Amine Ben Hadj Ali]

Please compile from the visual studio command prompt and check again (drag the fluent launcher icon into vs command prompt). Perhaps the three environment variables (path , include and lib) are not set properly.

[abd fs]

Dear Amine,

Thank you, my system consists of the following:

- Microsoft Windows 10 x64

- ANSYS Fluent 17.0 x64

- Microsoft Visual Studio express_2015_for_windows_desktop_x86_x64_web_installer_6846484

I tested VS and received :

but I don't know is it good or bad.

Best regards,

SER

 

 

[Amine Ben Hadj Ali]

Start Fluent from the VS command prompt and try compiling.

[abd fs]

Dear Amine,

is it necessary to install studio SDK  ?

Best regards,

SER

 

[Amine Ben Hadj Ali]

Actually not for x64 VS versions . I installed some weeks ago the developer builds of vs 2017 and it worked like a charm. Please check my last post as well as this discussion /forum/forums/topic/ansys-19-0-visual-studio-intel-parallel-studio-xe-version-required-for-upfs/

[Amine Ben Hadj Ali]

Check if you have x64 command prompt in your VS start programmes and start Fluent from it

[abd fs]

Dear Amine,

When i tried to compile the program with visual studio the compiler declares a lack of library udf.h so do i have to create a library? If yes, how ? and how can I share this library between Fluent and VS?

Best regards,

SER

 

[Amine Ben Hadj Ali]

You need to start Fluent out of the VS command prompt (x86_x64 Cross Tools Command Prompt). You will compile from ANSYS Fluent.

[abd fs]

Dear Amine,

 

What is libudf ? how do I create ?

Best regards,

SER

[abd fs]

Dear friends,

I'm using :

Windows 10 64bit

ANSYS17.0  64bit

en_visual_studio_community_2015_with_update_3_x86_x64_web_installer_8922963

en_visual_studio_2015_sdk_x86_x64_6846633

environment variables:

include

C:Program Files (x86)Microsoft Visual Studio 14.0VCinclude ; C:Program Files (x86)Microsoft SDKsWindowsv7.0A

lib

C:Program Files (x86)Microsoft Visual Studio 14.0VClibamd64 ; C:Program Files (x86)Microsoft SDKsWindowslibx64

Path

C:Program Files (x86)Microsoft Visual Studio 14.0VCbinamd64 ; C:Program Files (x86)Microsoft Visual Studio 14.0Common7IDE ; C:Program FilesANSYS Incv170fluentntbinwin64 

but unfortunately the problem remained the same

are these environments correct?

[Amine Ben Hadj Ali]

Once again start Fluent from x86_64 command prompt of VS and try to compile the UDF there (in the ANSYS Fluent started from the x_86_64 prompt).

[abd fs]

Dear Amine,

Thank you for your answer, but I have already followed your advisor(start Fluent from x86_64 command prompt) but the error remains the same.

if you can, is the environment that I have already indicated correct?

 

Best regards,

SER

[Amine Ben Hadj Ali]

If you still have problems running from the x86_64 then it means that you still have compiler issues. Make a clear uninstall and install once again with explicit admin rights.  For VS 2015 you do not require to install the SDK.

VS will input what it requires into lib, include and path. If compilation is successful then you just append lib, path and include from the CMD of x86_64 into the lib, include and path from windows env variables under control panel.

[abd fs]

Hello Amine

I already uninstalled and installed VS, and I tested "Hello" in the VS and showed it. VS is well installed, but the problem remains the same.

 My environment variables:

include

C:Program Files (x86)Microsoft Visual Studio 14.0VCinclude ; C:Program Files (x86)Microsoft SDKsWindowsv7.0A

lib

C:Program Files (x86)Microsoft Visual Studio 14.0VClibamd64 ; C:Program Files (x86)Microsoft SDKsWindowslibx64

Path

C:Program Files (x86)Microsoft Visual Studio 14.0VCbinamd64 ; C:Program Files (x86)Microsoft Visual Studio 14.0Common7IDE ; C:Program FilesANSYS Incv170fluentntbinwin

 

I found this environment recommended by people who had the same problem as me

As I noticed there is a difference. Are there solutions?

Best regards,

 

SER

[Amine Ben Hadj Ali]

The worakround is to type env from x86_64 CMD of VS and then append the include, lib and path here to the include, lib and path in the control panel env. variables. You need to check if the latter do contain similar things as this might lead to inconsistency. 

That is why check at first what do the env variables from control panel contain.

[abd fs]

Dear Amine,

In the program files, I can not find include and lib in C:Program Files (x86)Microsoft SDKsWindowsv7.0A(....) I think the problem comes from here.

 

Best regards,

SE

[Amine Ben Hadj Ali]

SDK is actually not required whenever VS 2015 is used. However in the some instances the 65-bit SDK must be installed separately. After you install the compiler, open up Control Panel, Programs and Features. Select your 2015 compiler to modify the installation. Select Visual C++, Common Tools…, etc.

[abd fs]

Dear Amine,

If possible what is a libudf.dll file? What does this file contain? And how can I create this file?

I think the problem comes from this file !

I think all files are well installed

Best regards,

SE

[Amine Ben Hadj Ali]

Please answer the questions so that we might help.

Did you start FLUENT from the VS prompt? Did you compile the UDF? Which messages are you now receiving?

[abd fs]

Dear Amine, 

Thank you,

Did you start FLUENT from the VS prompt? YES

Did you start FLUENT from the VS prompt? I cant compile the UDF because I received this message

Best regards,

 

SE

[Amine Ben Hadj Ali]

First of all to avoid any misunderstanding issues:

My compiling process for Fluent UDFs with an existing library loaded:

1) Define > User-Defined > Functions > Manage...

2) Select existing library and click "Unload"

3) Define > User-Defined > Functions > Compiled...

4) Click "Add..." if there are other source files required (Fluent reads in a new version of the file regardless of whether or not you delete then add the same source file)

5) Build then Load

If this is not working then there are still issues regarding environment variables and /or installation. Please check with your IT as the procedure is straightforward.

1/Clean-up everything: uninstall all VS distribution you have.

2/Run as admin VS installation

3/Start Fluent from VS x86_64 prompt. Here Fluent would compile.

4/Step 3 can be avoided by just appending the output of include, path and lib variables from "env" in the VS prompt into the control panel env. variables.

[abd fs]

ok

[abd fs]

Dear Amine,

if you allow, you said this sentence

My compiling process for Fluent UDFs with an existing library loaded:

how did you create this library ?

 

Best regards,

SE

[Rob]

In Fluent go to User Defined -> Functions -> Compiled

 

Then look in the text Window in Fluent. Chances are if the compiler is not installed you'll get an error with something like  "nmake" is unknown. 

[abd fs]

Dear rwoolhou,

This is the message I received

 

 

Best regards,

SE

[Amine Ben Hadj Ali]

The library got created after succful compilation of my UDF which is not the case for you. Please then stick to the second part of my last reply:

 

1/Clean-up everything: uninstall all VS distribution you have.

2/Run as admin VS installation

3/Start Fluent from VS x86_64 prompt. Here Fluent would compile.

4/Step 3 can be avoided by just appending the output of include, path and lib variables from "env" in the VS prompt into the control panel env. variables.

Your Windows wants to tell you that it needs to be activated.

[abd fs]

ok 

[Rob]

Can you also show the whole error: that's just the bit where it's failed to load as the UDF failed to compile. 

[abd fs]

OK sir

[abd fs]

Dear Amine,

I did all the steps, as you asked me to do,but I received the same message !

That's what I do :

the three files in the same folder, with SRC contains the UDF file

Environment

include  -   C:Program Files (x86)Microsoft Visual Studio 14.0VCinclude;C:Program Files (x86)Microsoft SDKsWindowsv7.1AInclude; lib -  C:Program Files (x86)Microsoft Visual Studio 14.0VClibamd64;C:Program Files (x86)Microsoft SDKsWindowsv7.1ALibx64; path - C:Program Files (x86)Microsoft Visual Studio 14.0Common7Tools;C:Program Files (x86)Microsoft Visual Studio 14.0VCbin;C:Program FilesANSYS Incv170fluentntbinwin64 What can I do more ? please 

Best regards,

SE

[Amine Ben Hadj Ali]

Please start Fluent from the VS prompt and just compile:

 

DEFINE_ON_DEMAND(bazinga)

{

Message0("Hello!n);

}

[abd fs]

Dear Amine,

Thank you,but I received the same message .

That's what I do :

 

Best regards,

SE

 

[kadimtalebe]

for my case, I solved the problem:

 

"Set the correct environment variables. Browse your way through the Windows system control to 'System'. There you will find a section 'Advanced system settings'. In the following dialog go to the 'Advanced' tabulator and click on 'Environment variables' (lower right corner). Go through the 'System variables' list and search for the 'Path' entry. Add the following to the variable: C:Program Files (x86)Microsoft Visual Studio 10.0Common7Tools;C:Program Files (x86)Microsoft Visual Studio 10.0VCbin;C:Program FilesANSYS Incv120fluentntbinwin64"

In my system it is like this: C:Program Files (x86)Microsoft Visual Studio 14.0Common7Tools;C:Program Files (x86)Microsoft Visual Studio 14.0VCbin;C:Program FilesANSYS Incv180fluentntbinwin64

Than, problem is solved.

[abd fs]

Dear Kadimtabebe,

thank you for your help. It's the same job I did. However, the problem is not solved

Best regards,

SE

[Amine Ben Hadj Ali]

If you follow the procedures mentioned a couple of times here by launching FLUENT from VS prompt and trying to compile and you still have erros, I recommend letting your IT to check your Windows, ANSYS and MS VS installations.

 

 

[abd fs]

Dear Amine,

I think ANSYS well installed, the VS installed because I did the test HELLO.

In your opinion are there any other cause of this problem

Best regards,

SE

[Amine Ben Hadj Ali]

Perhaps your env. variables contain dissimilar content referring to conflicting versions.  That is why the recommendation to uninstall everything related to VS and all old releases of it. Moreover Windows needs to be activated I assume. Please check with your IT.

[abd fs]

Dear Amine ,

After compiling VSx86x64, I received this message

what does this message mean

Best regards,

SE

[Rob]

The Load error either means it's not compiled or the file doesn't exist. If you scroll up is there an error message with "nmake" in it? 

[abd fs]

Dear rwoolhou,

Thanks for your attention and quick reply, I have never received an error related to nmake.

Best regards,

SE

[Rob]

Please can you post all of that message? There are two parts to compiling, the first relates to you code (is it correct) and the second to the compiler (have you installed it): the load error means one or both have failed but we're struggling to figure out what you've (not) done to be able to help. 

[abd fs]

Dear rwoolhou, 

I am sending you all the steps and pictures.

Best regards,

SE

[Rob]

What happens if you read the udf1.c file into the Fluent compiler process? 

[abd fs]

Dear rwoolhou,

Best regards,

SE

[Amine Ben Hadj Ali]

So now you are directly trying compiling the *.c file? Have you activated your Windows?

[abd fs]

Dear Amine, 

Yes

Best regards,

SE

[Amine Ben Hadj Ali]

Let me summarize all points:

1/Windows i activated: Yes

2/Installed everything and compiling from VS prompt does not work

We cannot help more here. Please recheck every single step, cleanup every single VS distribution on your computer, check the env. variables are remove old content from there (pointing to some VS or SDK things..). Re-Install with explicit admin rights and try again.

That is the procedure which would work.

 

By the way I recommend to update your ANSYS version and use the developer tools 2017 which are enough to get started

 

[Ananth Narayan]

Hello Sir, I too have problem of not compiling UDF. I get message as UDF.dll is not found and also while building I get XCOPY is not recognized as internal or external command. What shall I do?

[Ananth Narayan]

Wow, I got result. Here are the steps what I have done:

 

1. Install VS 2017 C++ compiler (around 2 GB)

2. Create/alter the environment variable XCOPY to path "C:Windowssystem32" and create a value "Path" and for value "C:Program Files (x86)Microsoft Visual Studio2017CommunityCommon7Tools;C:Program Files (x86)Microsoft Visual Studio2017CommunityVC;C:Program FilesANSYS Incv182fluentntbinwin64;"

 

Note: Make sure to paste your directory root of your fluent.

3. Now run fluent via x86_x64 command prompt VS 2017

4. Now no error, successfully compiled. Is error pertains restart your computer.

 

Refer This.