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Old   June 3, 2013, 13:27
Default UDF value to large for defined data type
  #1
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anna
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Hi everyone,

I'm new to Fleunt and this is my first time interpreting a UDF. When using the Interpreted UDFs dialogue in Fluent version 14.5 I get the following error:
cpp -I "/usr/css/apps/ansys_inc/v145/fluent/Fleunt14.5.0/src" ...
: Value too large for defined data type
cpp: netudf.c: Value too large for defined data type
Error: "netudf.c": line 1: syntax error.

Anyone know what this means? My UDF, netudf.c, is below:

# include "udf.h"
DEFINE_PROFILE(ICA,thread,position)
{
face_t f;
real t = CURRENT_TIME;
begin_f_loop(f,thread)
{
F_PROFILE(f,thread,position)=(1/11.716310)*(4.600000/3.8909)*(3.8909-(0.0725*cos(2*3.14*(0.9-t)/0.9))-(0.1920*cos(2*2*3.14*(0.9-t)/0.9))-(0.4004*cos(2*3*3.14*(0.9-t)/0.9))-(0.2157*cos(2*4*3.14*(0.9-t)/0.9))-(0.2692*cos(2*5*3.14*(0.9-t)/0.9))-(0.0699*cos(2*6*3.14*(0.9-t)/0.9))+(0.0607*cos(2*7*3.14*(0.9-t)/0.9))+(0.0140*cos(2*8*3.14*(0.9-t)/0.9))+(0.0409*cos(2*9*3.14*(0.9-t)/0.9))-(0.0015*cos(2*10*3.14*(0.9-t)/0.9))-(0.0193*cos(2*11*3.14*(0.9-t)/0.9))-(0.0312*cos(2*12*3.14*(0.9-t)/0.9))-(0.0571*cos(2*13*3.14*(0.9-t)/0.9))-(0.0205*cos(2*14*3.14*(0.9-t)/0.9))-(0.0070*cos(2*15*3.14*(0.9-t)/0.9))-(0.9802*sin(2*3.14*(0.9-t)/0.9))-(0.5866*sin(2*2*3.14*(0.9-t)/0.9))-(0.2279*sin(2*3*3.14*(0.9-t)/0.9))-(0.0648*sin(2*4*3.14*(0.9-t)/0.9))+(0.0212*sin(2*5*3.14*(0.9-t)/0.9))+(0.2039*sin(2*6*3.14*(0.9-t)/0.9))+(0.0433*sin(2*7*3.14*(0.9-t)/0.9))+(0.0093*sin(2*8*3.14*(0.9-t)/0.9))-(0.0109*sin(2*9*3.14*(0.9-t)/0.9))-(0.0527*sin(2*10*3.14*(0.9-t)/0.9))-(0.0299*sin(2*11*3.14*(0.9-t)/0.9))-(0.0355*sin(2*12*3.14*(0.9-t)/0.9))-(0.0001*sin(2*13*3.14*(0.9-t)/0.9))+(0.0283*sin(2*14*3.14*(0.9-t)/0.9))+(0.0127*sin(2*15*3.14*(0.9-t)/0.9)));
}
end_f_loop(f,thread)
}

Thanks for the help,
Anna
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Old   September 5, 2013, 05:10
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  #2
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Pasquale Natale
Join Date: Feb 2012
Posts: 4
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Quote:
Originally Posted by Anna73 View Post
Hi everyone,

I'm new to Fleunt and this is my first time interpreting a UDF. When using the Interpreted UDFs dialogue in Fluent version 14.5 I get the following error:
cpp -I "/usr/css/apps/ansys_inc/v145/fluent/Fleunt14.5.0/src" ...
: Value too large for defined data type
cpp: netudf.c: Value too large for defined data type
Error: "netudf.c": line 1: syntax error.

Anyone know what this means? My UDF, netudf.c, is below:

# include "udf.h"
DEFINE_PROFILE(ICA,thread,position)
{
face_t f;
real t = CURRENT_TIME;
begin_f_loop(f,thread)
{
F_PROFILE(f,thread,position)=(1/11.716310)*(4.600000/3.8909)*(3.8909-(0.0725*cos(2*3.14*(0.9-t)/0.9))-(0.1920*cos(2*2*3.14*(0.9-t)/0.9))-(0.4004*cos(2*3*3.14*(0.9-t)/0.9))-(0.2157*cos(2*4*3.14*(0.9-t)/0.9))-(0.2692*cos(2*5*3.14*(0.9-t)/0.9))-(0.0699*cos(2*6*3.14*(0.9-t)/0.9))+(0.0607*cos(2*7*3.14*(0.9-t)/0.9))+(0.0140*cos(2*8*3.14*(0.9-t)/0.9))+(0.0409*cos(2*9*3.14*(0.9-t)/0.9))-(0.0015*cos(2*10*3.14*(0.9-t)/0.9))-(0.0193*cos(2*11*3.14*(0.9-t)/0.9))-(0.0312*cos(2*12*3.14*(0.9-t)/0.9))-(0.0571*cos(2*13*3.14*(0.9-t)/0.9))-(0.0205*cos(2*14*3.14*(0.9-t)/0.9))-(0.0070*cos(2*15*3.14*(0.9-t)/0.9))-(0.9802*sin(2*3.14*(0.9-t)/0.9))-(0.5866*sin(2*2*3.14*(0.9-t)/0.9))-(0.2279*sin(2*3*3.14*(0.9-t)/0.9))-(0.0648*sin(2*4*3.14*(0.9-t)/0.9))+(0.0212*sin(2*5*3.14*(0.9-t)/0.9))+(0.2039*sin(2*6*3.14*(0.9-t)/0.9))+(0.0433*sin(2*7*3.14*(0.9-t)/0.9))+(0.0093*sin(2*8*3.14*(0.9-t)/0.9))-(0.0109*sin(2*9*3.14*(0.9-t)/0.9))-(0.0527*sin(2*10*3.14*(0.9-t)/0.9))-(0.0299*sin(2*11*3.14*(0.9-t)/0.9))-(0.0355*sin(2*12*3.14*(0.9-t)/0.9))-(0.0001*sin(2*13*3.14*(0.9-t)/0.9))+(0.0283*sin(2*14*3.14*(0.9-t)/0.9))+(0.0127*sin(2*15*3.14*(0.9-t)/0.9)));
}
end_f_loop(f,thread)
}

Thanks for the help,
Anna
Maybe have you edited .c file by windows and are you running on linux platform?
I have had the same problem and I've solved it by using of dos2unix command.
The problem, sometimes, is due to LF and CR special characters misunderstanding between the two O.S. and dos2unix helps to fix it.
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Old   October 28, 2013, 09:33
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  #3
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Pasquale Natale
Join Date: Feb 2012
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Quote:
Originally Posted by Anna73 View Post
Hi everyone,

I'm new to Fleunt and this is my first time interpreting a UDF. When using the Interpreted UDFs dialogue in Fluent version 14.5 I get the following error:
cpp -I "/usr/css/apps/ansys_inc/v145/fluent/Fleunt14.5.0/src" ...
: Value too large for defined data type
cpp: netudf.c: Value too large for defined data type
Error: "netudf.c": line 1: syntax error.

Anyone know what this means? My UDF, netudf.c, is below:

# include "udf.h"
DEFINE_PROFILE(ICA,thread,position)
{
face_t f;
real t = CURRENT_TIME;
begin_f_loop(f,thread)
{
F_PROFILE(f,thread,position)=(1/11.716310)*(4.600000/3.8909)*(3.8909-(0.0725*cos(2*3.14*(0.9-t)/0.9))-(0.1920*cos(2*2*3.14*(0.9-t)/0.9))-(0.4004*cos(2*3*3.14*(0.9-t)/0.9))-(0.2157*cos(2*4*3.14*(0.9-t)/0.9))-(0.2692*cos(2*5*3.14*(0.9-t)/0.9))-(0.0699*cos(2*6*3.14*(0.9-t)/0.9))+(0.0607*cos(2*7*3.14*(0.9-t)/0.9))+(0.0140*cos(2*8*3.14*(0.9-t)/0.9))+(0.0409*cos(2*9*3.14*(0.9-t)/0.9))-(0.0015*cos(2*10*3.14*(0.9-t)/0.9))-(0.0193*cos(2*11*3.14*(0.9-t)/0.9))-(0.0312*cos(2*12*3.14*(0.9-t)/0.9))-(0.0571*cos(2*13*3.14*(0.9-t)/0.9))-(0.0205*cos(2*14*3.14*(0.9-t)/0.9))-(0.0070*cos(2*15*3.14*(0.9-t)/0.9))-(0.9802*sin(2*3.14*(0.9-t)/0.9))-(0.5866*sin(2*2*3.14*(0.9-t)/0.9))-(0.2279*sin(2*3*3.14*(0.9-t)/0.9))-(0.0648*sin(2*4*3.14*(0.9-t)/0.9))+(0.0212*sin(2*5*3.14*(0.9-t)/0.9))+(0.2039*sin(2*6*3.14*(0.9-t)/0.9))+(0.0433*sin(2*7*3.14*(0.9-t)/0.9))+(0.0093*sin(2*8*3.14*(0.9-t)/0.9))-(0.0109*sin(2*9*3.14*(0.9-t)/0.9))-(0.0527*sin(2*10*3.14*(0.9-t)/0.9))-(0.0299*sin(2*11*3.14*(0.9-t)/0.9))-(0.0355*sin(2*12*3.14*(0.9-t)/0.9))-(0.0001*sin(2*13*3.14*(0.9-t)/0.9))+(0.0283*sin(2*14*3.14*(0.9-t)/0.9))+(0.0127*sin(2*15*3.14*(0.9-t)/0.9)));
}
end_f_loop(f,thread)
}

Thanks for the help,
Anna
Have you solved this issue? In some cases... it does not work for me.
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Old   August 27, 2014, 12:23
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Jens
Join Date: Aug 2014
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Dear Anna,

I have encountered the same error on our system. I also tried to use dos2unix to resolve it, but it didn't work. So far, I suspect that it is related to
a) the mounting of the file system that holds my working directory, or
b) the C-preprocessor version used by Fluent.

In my case, the file system is a non-unix (Windows), mounted using cifs-mount package.

Working with Fluent 15 on some older SuSE 11 system, the error does not occur. On our newer Linux OS (SuSE Enterprise ...) the mount options are slightly different (due to the newer cifs package) and the error occurs. So I am convinced at least it has nothing to do with the source code of your UDF.

If you have resolved the problem in the meantime, please let me know. Hopefully it will work here, too.

Many thanks for a brief reply.
Jens.
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