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Old   January 8, 2002, 08:37
Default UDF problem
  #1
chiseung
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I have a problem in using below c-source file. When I typed <make "FLUENT_ARCH=alpha">, warning message comes up like this.

---------------------

Warning: Unresolved:

RP_Get_Float

---------------------

Is it a severe problem to solve a problem? Source code is below.(sample problem in Fluent manual) Additionally, I'm using a "compiled-type" udf and Tru64 UNIX system.

#include "udf.h"

DEFINE_PROFILE(unsteady_velocity, thread, position) { face_t f;

begin_f_loop(f,thread) {

real t=RP_Get_Real("flow-time");

F_PROFILE(f,thread,position)=20.+5.0*sin(10.*t);

}

end_f_loop(f,thread); }
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Old   January 8, 2002, 08:41
Default Re: UDF problem - correction
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chiseung
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correct the first line.

When I typed, warning message comes up like this.

->When I typed, make "FLUENT_ARCH=alpha", warning message comes up like this.
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Old   January 9, 2002, 12:55
Default Re: UDF problem
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Lanre
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You can ignore the compiler warning unless you are unable to load the compiled udf into FLUENT. If this happens, your best bet would be to contact Fluent Inc.
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Old   January 9, 2002, 20:30
Default Re: UDF problem
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chiseung
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Thanks. Lanre.

Have you ever experienced that warning message before? Especially, when you compiled that sample problem that I've written, did you get a warning message like that? For this problem, I could load the compiled udf into FLUENT and had no problem to solve it.

However, in some cases, I couldn't solve those problems because of "Floating Point exception" error. I'm not sure that is caused by the compling problem.

Would you let me know?
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Old   January 10, 2002, 10:58
Default Re: UDF problem
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Lanre
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The FPE error is likely not a consequence of the compiler warning and is probably due to the UDF itself or the state of the solution when your UDF is read into the solver.

Did you get an FPE when running FLUENT with the UDF you posted ?
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