[B]the compiler keep on compile previous udf without updating new udf?[/B]

fruitkiwi · July 13, 2014, 03:26

Dear all,

I am using fluent in ansys 14.5, my compiler working in the first time, eg. compile sixdof.udf, and it manage to work flawlessly.

However, when I try to compiler other udf file eg. velocity.udf, the result never changes, in the fluent windows it still using the old sixdof.udf as end results. I can see the message telling me that it is still using the previous library file, C:\Users\fruitkiwi\libudf\win64\3ddp\libudf.dll

even when i am moving the library file go to other places, it still compile the previous udf, without updating the new udf which i instruct in the compiler GUI.

May I know if there is anyone of you face the similar problem and manage to solve it?

Thank you in advance.

pakk · July 14, 2014, 16:51

Probably (but this is a bit of a guess) when you thought that you compiled the 'new' udf, it did not work and you got a warning on your screen, that you missed. If the compilation failed, Fluent uses the most recent compiled version.

fruitkiwi · July 14, 2014, 21:46

Dear Pakk,

thanks for reply.
as attachment shown, in that way, based on your experience, is it possible for me to delete any file to let it compile the latest version?

fluent file.jpg

fruitkiwi · July 18, 2014, 02:20

is there anyone know how I can update the compiler compiled file rather than let it keep on compile the old file?

thank you.

pakk · July 24, 2014, 09:03

Fluent will always try to compile the newest version. You don't need to delete any files for that.

Sometimes, Fluent will have a problem with compiling the newest version, for example when you you made a mistake in the udf. In that case, nothing will be compiled. And when you try to use the udf, Fluent will use the most recent compiled version.

Check what is showing on your screen when you try to compile the udf. Do you see warnings or errors?

lehoanganh07 · July 24, 2014, 19:38

Different UDF file, you should make the diffrent name for library.
First UDF file the defaul name in Fluent is libudf. So fo second UDF file such as velocity.c, you compile with name libudf1

July 13, 2014, 03:26	[B]the compiler keep on compile previous udf without updating new udf?[/B]	#1
fruitkiwi Member kiwi Join Date: Mar 2012 Location: South East Asia Posts: 58 Rep Power: 14	Dear all, I am using fluent in ansys 14.5, my compiler working in the first time, eg. compile sixdof.udf, and it manage to work flawlessly. However, when I try to compiler other udf file eg. velocity.udf, the result never changes, in the fluent windows it still using the old sixdof.udf as end results. I can see the message telling me that it is still using the previous library file, C:\Users\fruitkiwi\libudf\win64\3ddp\libudf.dll even when i am moving the library file go to other places, it still compile the previous udf, without updating the new udf which i instruct in the compiler GUI. May I know if there is anyone of you face the similar problem and manage to solve it? Thank you in advance. Last edited by fruitkiwi; July 13, 2014 at 03:29. Reason: put a question mark to highligh the post

July 24, 2014, 09:03		#5
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 26	Fluent will always try to compile the newest version. You don't need to delete any files for that. Sometimes, Fluent will have a problem with compiling the newest version, for example when you you made a mistake in the udf. In that case, nothing will be compiled. And when you try to use the udf, Fluent will use the most recent compiled version. Check what is showing on your screen when you try to compile the udf. Do you see warnings or errors? fruitkiwi likes this.

July 24, 2014, 19:38		#6
lehoanganh07 Member le hoang anh Join Date: Oct 2012 Posts: 96 Rep Power: 13	Different UDF file, you should make the diffrent name for library. First UDF file the defaul name in Fluent is libudf. So fo second UDF file such as velocity.c, you compile with name libudf1 fruitkiwi likes this.

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July 14, 2014, 16:51		#2
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 26	Probably (but this is a bit of a guess) when you thought that you compiled the 'new' udf, it did not work and you got a warning on your screen, that you missed. If the compilation failed, Fluent uses the most recent compiled version.

July 14, 2014, 21:46		#3
fruitkiwi Member kiwi Join Date: Mar 2012 Location: South East Asia Posts: 58 Rep Power: 14	Dear Pakk, thanks for reply. as attachment shown, in that way, based on your experience, is it possible for me to delete any file to let it compile the latest version? fluent file.jpg

July 18, 2014, 02:20		#4
fruitkiwi Member kiwi Join Date: Mar 2012 Location: South East Asia Posts: 58 Rep Power: 14	is there anyone know how I can update the compiler compiled file rather than let it keep on compile the old file? thank you.