UDF
 

HI,

I have writtena simple UDF which I have pasted below.

When I compile it as interpreted UDF , I can see the message in the printf line in the console window while iterating.

However if I comlpile it as compiled UDF and even after hooking it I cannot see the message in the console window while iterating.

Does anyone have an idea why this is so? Any sort of help will be appreciated!!!!!

#include "udf.h" DEFINE_ADJUST(my_adjust,d)

{

Thread *t;

cell_t c;

printf("I am here");

}

Re: UDF
 

Assuming that all else is well, it is possible that IO buffering is the problem. Use "Message" instead of "printf" or explicitly flush stdout.

Jason D.

Re: UDF
 

thanks,

I am a mechanical engineer.

Can u be more precise regarding "explicitly flush stdout"???

thanks in advance

Re: UDF
 

Well, I am also a mechanical engineer, so I don't know what that is about. To answer the question: "Message" acts pretty much like "printf", so all you have to do is replace printf with Message (see section 3.7 of the 6.3 UDF manual). I strongly urge you to use Message, as explicitly flushing stdout is a pain in the neck when you forget to do it (done that). My output eventually showed up - if I recall correctly it appeared when I reloaded my UDF's. After that I have always used Message. However, should you wish to go the flush route, to explicitly flush stdout you'll need to add

fflush(stdout);

after your printf to see it properly. As far as I know what I have said is valid under Windows and Linux.

Jason D.

Re: UDF
 

Hi Jasond.

Thanks man. It really works. Gr8. I am damn happy.

Well just wanted to inroduce my self to u.

I am a student in SWEDEN, doing my thesis on UDF. I am trying to write a UDF for adopting 4 transport equations for a new turbulence model. I have written the code, but I was unable to debug some errors in the code because of the above problem. Now that its solved I am very happy. Thanks again.....

What about u? where r u from???? and what do u do???