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Old   March 2, 2011, 09:56
Default UDF - Error loading libudf
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Hi,

i've succesfully compiled my udf, but when i load it fluent says

The UDF library you are trying to load (libudf) is not compiled for 2ddp on the curent platform (win64).

what can i do ?

I use fluent 13, visual c++ 2008 express and win7 x64

Thank you
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Old   August 29, 2011, 02:53
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Hi,

Were you able to sort out this problem?

If yes, kindly please let me know how you resolved this issue.

Thank you.
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Old   August 29, 2011, 09:50
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Hi,

if you have not done it be sure to start Fluent from the VS command prompt.
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Old   August 29, 2011, 11:43
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HI, have you checked the environment settings of your computer? Make sure all the settings are correctly. I remember once there was a thread talking about how to set the computer environment for FLUENT on this forum, if you followed all the instructions in the replies above but you still could not get udf work, would you mind to search through the forums to find that thread, and reset the environment. This should work.

Best regards,
Hongjin
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Old   January 12, 2012, 04:22
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Hi,

Could any body resolved this problem?

I have seen many threads regarding this but yet I am not able to solve the proble.

I have installed Visual studio 2010 express and Fluent 13. Also installed "Microsoft Windows SDK v7.0".

I have run the Fluent from SDK command prompt. And yet I have recieved the error saying that

"The UDF library you are trying to load (Sedimentation) is not compiled for 2ddp on the curent platform (win64).
The system cannot find the file specified.
C: estudf\Sedimentation\win64\2ddp\libudf.dll"

Please let me know the solution for this.

Thanks in advance.

KK
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Old   January 13, 2012, 09:50
Default Compiling and Loading 64 bits UDF library
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This ANSYS support note provides all informations necessary to compile UDF for FLUENT 64-bit
Attached Files
File Type: pdf 2020316-Compiling and Loading FLUENT 64 - using SDKx.pdf (94.9 KB, 2529 views)
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Old   January 14, 2012, 02:11
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Hi Laurent ,


Thanks for the help.

Now it is working fine for me. I have followed same steps as mentioned in pdf file.

Probably this file is available for all the users of this forum.

KK
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Old   February 2, 2012, 05:35
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Hi Laurentb

I am having the same issue, I have read the PDF but do not understand,

I am a beginner and trying to complete the tutorial "heave and pitch simulation of ship hull moving through head sea waves" and I have the hull geometry and a 6DOF UDF which is what I cannot load as it says

"The UDF library you are trying to load (libudf) is not compiled for 3ddp on the curent platform (win64).
The system cannot find the file specified."

Can you please explain in simple terms what I need to do,

Thank you in advance!

Cameron

Last edited by Cam; February 2, 2012 at 05:48. Reason: Question has changed
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Old   February 2, 2012, 05:45
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the content of the pdf file :


Compiling and Loading FLUENT 64-bit UDFs using the "FREE" Microsoft Visual Studio 2010 32-bit Express Edition and the 7.0 SDK
IMPORTANT SUPPORT NOTE
: The 2010 Express Edition and the SDK will allow you to compile 64-bit UDFs for FLUENT. However, the installation and use of the Express and the SDK is not “officially” supported so we ask that you get your IT folks involved in
the actual installation.

RESTRICTIONS
: Also, you CANNOT compile UDFs for FLUENT without first opening the SDK Command prompt window and starting FLUENT from this window.

Instructions
Download the Microsoft Visual Studio Express Edition (2010) performing a default installation
http://www.microsoft.com/express/Downloads/#2010-Visual-CPP. Search for the text: Microsoft Visual C++ 2010 Express in your browser window.

7.0 SDK
Microsoft Windows SDK for Windows 7 and .NET Framework 3.5 SP1
or search for the text: Microsoft Windows SDK for Windows 7 and .NET Framework 3.5 SP1 in your browser window.

IMPORTANT NOTE FROM MICROSOFT
: if you are running a 64-bit version of Windows and Visual Studio 2008, please upgrade to Visual Studio 2008 SP1 before installing the Windows 7 SDK. Search for the text: Microsoft Visual Studio 2008 Service Pack 2 in your browser window.

This prevents an issue where some platform configuration choices are unavailable in Visual Studio’s New Project Platform and New Solution Platform dialogs.
Starting FLUENT using the SDK 7.0 Command Prompt Window
1. Open up the SDK Command Window. This is required as this will set the compiler environment variables.
2. Choose the
Start Menu > All Programs > Microsoft Windows SDK v7.0 > CMD Shell
3. Launch FLUENT 13.x from this window. (image below):
(i am not able to paste picture here)
NOTE
: Make sure the CMD window states the following
a. “
Setting SDK Environment relative to C:\Program Files\Microsoft
SDKs\Windows\v7.x

b. Targeting Windows Server 2003
x64 DEBUG

c. Change to your Working directory (directory where your .cas, dat and .c file reside)
d. Launch Fluent: “C:\Program Files\ ANSYS Inc\v130\fluent\ntbin\win64\fluent


you can find this pdf file in fluent users website.

KK
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Old   February 2, 2012, 10:15
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First of all, i recommend you read the Fluent UDF Manual.

If you use a udf you will need to compile your code (.c file) in order to obtain a compiled library (.dll). You don't have to do this if someone give you the library precompiled BUT the library works only for a specific OS (32 or 64bits) and a specific solver (2d or 3d or double precision).

In your case you haven't got a library compiled for your OS (64bits) and your solver (3ddp)
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Old   April 1, 2012, 15:13
Default sdk command prompt
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Hi, i have visual studio 9 and in the sdk i dont see a command prompt, cant i start ufd for fluent using visual studio command prompt?
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Old   July 20, 2012, 17:03
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Hi,

I'm having this problem too, but my windows and the visual studio are 64bits...also I copied a udf that i knew it was right and it was compiled correctly and I succed to load the library. My own codes, on the other hand, i cant compile nor load the library.....

This can't be a system problem, right?
What am i doing wrong?
I'm new at udf.....

Last edited by mila_oliv; July 20, 2012 at 17:34.
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Old   September 20, 2012, 14:54
Unhappy please help me
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hi every body
i need this tutorial .is there anybody help me to find this tutorial with below name:

Heave and Pitch Simulation of Ship hull moving through head sea waves
i would be grateful if someone help me
my email is :mkerend2004@yahoo.com
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Old   September 20, 2012, 15:43
Unhappy please help me
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hi every body
i need this tutorial .is there anybody help me to find this tutorial with below name:

Heave and Pitch Simulation of Ship hull moving through head sea waves
i would be grateful if someone help me
my email is :mkerend2004@yahoo.com
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Old   September 21, 2012, 21:46
Default Good Post
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Niiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiice it worked for me
I looooooooooooooove CFD Online!
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Old   October 30, 2012, 04:23
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Hi, i use fluent 14, cfree4_1_pro and win7 x64
i've succesfully compiled my udf, but when i load it fluent says:
The UDF library you are trying to load (libudf) is not compiled for 2ddp on the curent platform (win64).
what should i do?
Thank you.
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Old   December 5, 2012, 10:54
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still do we need to use the fluent from SDK platform?
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Old   December 9, 2012, 14:51
Default udf compiling problem
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hi friends
i have a problem, when i compile udf source file it builds well but when i load it this error apears:
open_udf_library: The system cannot find the path specified.
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Old   January 17, 2013, 17:44
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thanks a lot for this thread!
was very helpful to me!
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Old   January 21, 2013, 08:00
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Had the same problem, solution worked like a charm. Tnx!
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