UDF - Error loading libudf

99valentine · November 22, 2014, 16:32

Hello all,

I am finding difficulty loading a UDF file (.c) in ANSYS Fluent 14.5 2d dp. It prompts for the same error :-
The UDF library you are trying to load (libudf) is not compiled for 2ddp on the curent platform (win64).
I am working with Windows 8. And all efforts to make it work have failed. A little more assistance would be nice.

macfly · November 22, 2014, 18:02

Only 2 steps did the trick for me in order to compile UDFs in Fluent 14.5 or 15 on Windows 8.1:

- Installing Microsoft Visual Studio Express 12 for Windows 8: http://www.microsoft.com/en-ca/downl....aspx?id=30664

- Add the path to nmake.exe in the path environment variable.

99valentine · November 23, 2014, 03:54

Thanks for the reply macfly. Although the nmake issue has been resolved, I'm still experiencing an error : Cannot find D:\abcdefg..\ libudf.dll.

aayushjain27 · February 8, 2015, 10:01

Quote:

Originally Posted by rou

Hello,
I still have the some problem and I don't know what to do?
a file'cortexerror.log' appear and it write "Le chemin d’accès spécifié est introuvable
D:\ER\E_files\dp0\FFF\Fluent\D:\ER\E_files\dp0\FFF \Fluent\libudf\ntx86\3d\libudf.dll
Error Object: #f"

did you find a solution to above problem? i am too stuck at this error. Please help.

rou · February 8, 2015, 16:24

sorry but I didn't solve the problem

Falkinho · March 18, 2015, 06:09

//solved

I am at the very last point c and i want to change the working directory.
Unfortunately the program gives me the following error:

C:\Program Files\Microsoft SDKs\Windows\v7.0>"C:\Users\Julio.Ruben-PC\Desktop\Falko\tut-12-dm-ship-wave\Work_File"
""C:\Users\Julio.Ruben-PC\Desktop\Falko\tut-12-dm-ship-wave\Work_File"" no se reconoce como un comando interno o externo, programa o archivo por lotes ejecutable.

Translation of last part:
is not recognized as an internal or external command, operable program or batch file.

Please help!

Quote:

Originally Posted by kiran_kumar

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

http://www.microsoft.com/downloads/e...displayLang=en

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

a.elwardany · April 10, 2015, 08:06

Hi guys,
I followed all steps and still get the same error message:
would you comment on this. I've Teamviewer if anybody wanna check with me.
Error: The UDF library you are trying to load (INC_1) is not compiled for 3ddp on the current platform (win64).
The system cannot find the file specified.
C:\Ahmed\UDF-mansour\INC_1\win64\3ddp\libudf.dll
Error Object: #f

a.elwardany · April 12, 2015, 09:23

Dear Laurent,

I've followed every single step in the pdf file and I still have the same error message.
could you comment on this.
thanks.
Ahmed

pakk · April 13, 2015, 06:07

Please give the error that you see when you try to build the udf. Without that information, we can not tell you what went wrong.

vigii · April 29, 2015, 03:57

Hi,

If someone found the way to overcome this error "The UDF library you are trying to load (libudf) is not compiled for 3d on the current platform (win64).".

Please share the steps that needs to be take care.

Regards,
Vigii

pakk · April 29, 2015, 04:18

Quote:

Originally Posted by vigii

Hi,

If someone found the way to overcome this error "The UDF library you are trying to load (libudf) is not compiled for 3d on the current platform (win64).".

Please share the steps that needs to be take care.

Regards,
Vigii

The error says that the udf is not compiled. The solution therefore is to compile the udf.

Probably compiling went wrong. Please give the error that you see when you try to build the udf. Without that information, we can not tell you what went wrong.

vigii · April 29, 2015, 05:56

Please find the error displayed as below

HTML Code:

Copied C:\Users\vignesh.v\Desktop\gerotor_test/C:\Users\vignesh.v\Desktop\gerotor_test\gerotor.c to libudf\src
Copied C:\Users\vignesh.v\Desktop\gerotor_test/C:\Users\vignesh.v\Desktop\gerotor_test\gerotor_vane_smoothing.c to libudf\src
udf_names.c file in 3ddp is upto date.
(system "copy "C:\PROGRA~1\ANSYSI~1\v145\fluent"\fluent14.5.0\src\makefile_nt.udf "libudf\win64\3ddp\makefile" ")
        1 file(s) copied.
(chdir "libudf")()
(chdir "win64\3ddp")()
# Generating ud_io1.h
gerotor.c
..\..\src\gerotor.c(540) : error C2143: syntax error : missing ';' before 'type'
..\..\src\gerotor.c(542) : error C2065: 'i' : undeclared identifier
..\..\src\gerotor.c(542) : error C2065: 'i' : undeclared identifier
..\..\src\gerotor.c(542) : error C2065: 'i' : undeclared identifier
..\..\src\gerotor.c(544) : error C2065: 'i' : undeclared identifier
..\..\src\gerotor.c(544) : error C2065: 'i' : undeclared identifier
gerotor_vane_smoothing.c
Generating Code...

Done.

Opening library "C:\Users\vignesh.v\Desktop\gerotor_test\libudf"...
Error: The UDF library you are trying to load (libudf) is not compiled for 3ddp on the current platform (win64).

The system cannot find the file specified.

C:\Users\vignesh.v\Desktop\gerotor_test\libudf\win64\3ddp\libudf.dll
Error Object: #f

jyothsna k · May 18, 2015, 04:22

Thanks a lot laurentb. We could however, launch the workbench itself from the sdk command prompt so that all the components of the project are available simultaneously

ludosbiz · July 17, 2015, 07:41

Hi guyz, i am new in UDF and C++ language so i'm asking for ur kind help!
I am facing the same problem of above, i am running a x64 fluent v14 and i wanted to try the UDF made by Ankit Gohel(thx soooooooooooo much man u're great!!).
after having installed visual studio and sdk i face the same problem, cos probably i dunno understand properly the compiling part of the issue, where i should create a dll library for a x64 based environment instead of the x86 of Ankit(once again man, big up for u)

now the question, somebody a bit more prepared on compiling/interpreting would explain in detail the passages to perform this operation with visual studio, or even directly compile the file in x64 environment and upload it here below?? i think would be of help for a lot of people like me, involved in dynamic mesh problems.
thx for anybody reading, my MS thesis depends upon this file, damn!

pakk · July 17, 2015, 08:18

Quote:

Originally Posted by ludosbiz

Hi guyz, i am new in UDF and C++ language so i'm asking for ur kind help!
I am facing the same problem of above, i am running a x64 fluent v14 and i wanted to try the UDF made by Ankit Gohel(thx soooooooooooo much man u're great!!).
after having installed visual studio and sdk i face the same problem, cos probably i dunno understand properly the compiling part of the issue, where i should create a dll library for a x64 based environment instead of the x86 of Ankit(once again man, big up for u)

now the question, somebody a bit more prepared on compiling/interpreting would explain in detail the passages to perform this operation with visual studio, or even directly compile the file in x64 environment and upload it here below?? i think would be of help for a lot of people like me, involved in dynamic mesh problems.
thx for anybody reading, my MS thesis depends upon this file, damn!

I can not follow this... What is "the same problem as above"? There have been many problems listed. What is the UDF by Ankit Gohel? I don't see "Ankit" nor "Gohel" anywhere in this thread. What do you mean by x64 and x86?

The 'easiest' way to compile in Fluent is go to the menu, select Define->User-Defined->Functions->Compiled, and choose the file. There might be good reasons to do this differently, but if you don't have such a reason, keep it simple, and do it that way.

Small detail: C++ and C are two different languages, and Fluent UDFs use C, not C++.

ludosbiz · July 17, 2015, 10:45

Sorry pakk u re right i need to be clearer, thx for the answer thus.
I found somewhere a precompiled udf for cylinder motion that would be really useful in my case of study, a transversal moving cyl in ansys fluent.
When i try to load it on fluent it says:

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

Then i thought i should recompile it with visual studio for x64, am i right??
I copy here the UDF for some advice eventually..

#include "udf.h"
#include "dynamesh_tools.h"

#define p1 22/7
#define f1 0.161

DEFINE_CG_MOTION(cylinder, dt, cg_vel, cg_omega, time, dtime)
{
Thread*t;
face_t f;
real vel_prev;
vel_prev = 0.0;

cg_vel[0] = 0.0;
cg_vel[1] = (1.013)*sin(2*p1*f1*time);
cg_vel[2] = 0.0;

if (!Data_Valid_P())
return;

/* t = DT_OMEGA_CG(dt); */

cg_omega[0] = 0.0;
cg_omega[1] = 0.0;
cg_omega[2] = 0.0;

vel_prev = vel_prev + cg_vel[1];
Message ("time = %f, cg_vel[1] = %f\n", time, vel_prev);
}

ludosbiz · July 18, 2015, 10:32

Found this step by step walkthrough that may be useful for others, post the link here below.
http://www.simutechgroup.com/CFD/com...5-or-15-0.html

ludosbiz · July 18, 2015, 14:07

i've solved my issues in compiling the udf, it was a matter of environmental and user variables to be reset, thx also to rizwan for his "http://www.cfd-online.com/Forums/fluent-udf/44201-attn-all-soluton-udf-compile-problem.html"
Now i face another error, the following:
"c:\program files\ansys inc\v140\fluent\fluent14.0.0\src\global.h(10) : fatal error C1083: Cannot open include file: 'stdio.h': No such file or directory"
is it a big deal, anybody knows something about?

ludosbiz · July 21, 2015, 16:43

Resolved this issue by simply ctrl+c/ctrl+v of the files from the c:\program files\visual studio\vc\crt\src subdirectories to the same src folder under ansys.

ludosbiz · August 3, 2015, 16:00

anybody has fluent and sdk and is available for compiling to me an udf??it's a matter of seconds but i cannot figure out why it is not working to me...pls i am stuck in this since weeks...

November 22, 2014, 18:02		#42
macfly Senior Member François Grégoire Join Date: Jan 2010 Location: Canada Posts: 392 Rep Power: 17	Only 2 steps did the trick for me in order to compile UDFs in Fluent 14.5 or 15 on Windows 8.1: - Installing Microsoft Visual Studio Express 12 for Windows 8: http://www.microsoft.com/en-ca/downl....aspx?id=30664 - Add the path to nmake.exe in the path environment variable. MrPromaster and AnasMK like this.

July 17, 2015, 07:41	compiling help	#54
ludosbiz New Member Ludo Join Date: Jul 2015 Posts: 14 Rep Power: 11	Hi guyz, i am new in UDF and C++ language so i'm asking for ur kind help! I am facing the same problem of above, i am running a x64 fluent v14 and i wanted to try the UDF made by Ankit Gohel(thx soooooooooooo much man u're great!!). after having installed visual studio and sdk i face the same problem, cos probably i dunno understand properly the compiling part of the issue, where i should create a dll library for a x64 based environment instead of the x86 of Ankit(once again man, big up for u) now the question, somebody a bit more prepared on compiling/interpreting would explain in detail the passages to perform this operation with visual studio, or even directly compile the file in x64 environment and upload it here below?? i think would be of help for a lot of people like me, involved in dynamic mesh problems. thx for anybody reading, my MS thesis depends upon this file, damn!

July 18, 2015, 10:32		#57
ludosbiz New Member Ludo Join Date: Jul 2015 Posts: 14 Rep Power: 11	Found this step by step walkthrough that may be useful for others, post the link here below. http://www.simutechgroup.com/CFD/com...5-or-15-0.html Last edited by ludosbiz; July 18, 2015 at 14:07.

July 21, 2015, 16:43		#59
ludosbiz New Member Ludo Join Date: Jul 2015 Posts: 14 Rep Power: 11	Resolved this issue by simply ctrl+c/ctrl+v of the files from the c:\program files\visual studio\vc\crt\src subdirectories to the same src folder under ansys. Last edited by ludosbiz; July 22, 2015 at 04:50.

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November 22, 2014, 16:32		#41
99valentine New Member Join Date: Nov 2014 Posts: 3 Rep Power: 11	Hello all, I am finding difficulty loading a UDF file (.c) in ANSYS Fluent 14.5 2d dp. It prompts for the same error :- The UDF library you are trying to load (libudf) is not compiled for 2ddp on the curent platform (win64). I am working with Windows 8. And all efforts to make it work have failed. A little more assistance would be nice.

November 23, 2014, 03:54		#43
99valentine New Member Join Date: Nov 2014 Posts: 3 Rep Power: 11	Thanks for the reply macfly. Although the nmake issue has been resolved, I'm still experiencing an error : Cannot find D:\abcdefg..\ libudf.dll.

February 8, 2015, 16:24		#45
rou New Member arough Join Date: Mar 2013 Location: tunisia Posts: 24 Rep Power: 13	sorry but I didn't solve the problem

April 10, 2015, 08:06		#47
a.elwardany New Member Ahmed Join Date: Mar 2015 Posts: 3 Rep Power: 11	Hi guys, I followed all steps and still get the same error message: would you comment on this. I've Teamviewer if anybody wanna check with me. Error: The UDF library you are trying to load (INC_1) is not compiled for 3ddp on the current platform (win64). The system cannot find the file specified. C:\Ahmed\UDF-mansour\INC_1\win64\3ddp\libudf.dll Error Object: #f

April 12, 2015, 09:23		#48
a.elwardany New Member Ahmed Join Date: Mar 2015 Posts: 3 Rep Power: 11	Dear Laurent, I've followed every single step in the pdf file and I still have the same error message. could you comment on this. thanks. Ahmed

April 13, 2015, 06:07		#49
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	Please give the error that you see when you try to build the udf. Without that information, we can not tell you what went wrong.

April 29, 2015, 03:57		#50
vigii Member Vignesh KPV Join Date: Oct 2011 Location: Bangalore Posts: 83 Rep Power: 15	Hi, If someone found the way to overcome this error "The UDF library you are trying to load (libudf) is not compiled for 3d on the current platform (win64).". Please share the steps that needs to be take care. Regards, Vigii

May 18, 2015, 04:22		#53
jyothsna k New Member jyothsna k Join Date: May 2014 Posts: 18 Rep Power: 12	Thanks a lot laurentb. We could however, launch the workbench itself from the sdk command prompt so that all the components of the project are available simultaneously

July 17, 2015, 10:45		#56
ludosbiz New Member Ludo Join Date: Jul 2015 Posts: 14 Rep Power: 11	Sorry pakk u re right i need to be clearer, thx for the answer thus. I found somewhere a precompiled udf for cylinder motion that would be really useful in my case of study, a transversal moving cyl in ansys fluent. When i try to load it on fluent it says: The UDF library you are trying to load (libudf) is not compiled for 2ddp on the curent platform (win64). Then i thought i should recompile it with visual studio for x64, am i right?? I copy here the UDF for some advice eventually.. #include "udf.h" #include "dynamesh_tools.h" #define p1 22/7 #define f1 0.161 DEFINE_CG_MOTION(cylinder, dt, cg_vel, cg_omega, time, dtime) { Threadt; face_t f; real vel_prev; vel_prev = 0.0; cg_vel[0] = 0.0; cg_vel[1] = (1.013)sin(2p1f1time); cg_vel[2] = 0.0; if (!Data_Valid_P()) return; / t = DT_OMEGA_CG(dt); */ cg_omega[0] = 0.0; cg_omega[1] = 0.0; cg_omega[2] = 0.0; vel_prev = vel_prev + cg_vel[1]; Message ("time = %f, cg_vel[1] = %f\n", time, vel_prev); }

July 18, 2015, 14:07		#58
ludosbiz New Member Ludo Join Date: Jul 2015 Posts: 14 Rep Power: 11	i've solved my issues in compiling the udf, it was a matter of environmental and user variables to be reset, thx also to rizwan for his "http://www.cfd-online.com/Forums/fluent-udf/44201-attn-all-soluton-udf-compile-problem.html" Now i face another error, the following: "c:\program files\ansys inc\v140\fluent\fluent14.0.0\src\global.h(10) : fatal error C1083: Cannot open include file: 'stdio.h': No such file or directory" is it a big deal, anybody knows something about?

August 3, 2015, 16:00		#60
ludosbiz New Member Ludo Join Date: Jul 2015 Posts: 14 Rep Power: 11	anybody has fluent and sdk and is available for compiling to me an udf??it's a matter of seconds but i cannot figure out why it is not working to me...pls i am stuck in this since weeks...