Parallel temperature prandtl udf

gauravkmr · March 9, 2021, 10:49

How can I parallelize the following temperature prandtl number udf??

/* Specifying a Constant Temperature Prandtl Number */
#include "udf.h" DEFINE_PRANDTL_T(user_pr_t,c,t)
{
real pr_t;
pr_t = 0.25;
return pr_t;
}

pakk · March 9, 2021, 15:42

There is nothing to parallelise here... Just use it.

gauravkmr · March 9, 2021, 15:48

Thanks for your answer, but when I compile it in fluent, it shows error, that the code is not for parallel use.

pakk · March 10, 2021, 03:08

Can you copy that error? I've never seen that one before when you compile...

pakk · March 10, 2021, 03:10

And I assumed you had it working for serial, is that correct?

gauravkmr · March 10, 2021, 03:14

Following is the error:
The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform (win64).

I had not worked it for serial, I just wrote the script and compiled then it shows the above error.

pakk · March 10, 2021, 09:30

This is not the error you get when you compile. This is the error you get when you try to load. (Read it!)

Show the error that you get after you click "build".

pakk · March 10, 2021, 09:32

Oh, I hope that you did not really put

Code:

#include "udf.h" DEFINE_PRANDTL_T(user_pr_t,c,t)

literally as one line... In all the examples in the manual, this is split into two lines:

Code:

#include "udf.h"
DEFINE_PRANDTL_T(user_pr_t,c,t)

If you put this as one line, it will probably not compile, and the compiler should have given you an error in line 1...

gauravkmr · March 11, 2021, 03:10

I had split into two lines and wrote in notepad and saved in .c format.

gauravkmr · March 11, 2021, 03:51

When I click build then TUI shows the below message.

Copied E:\Projects\Gaurav\Simulation\18\pr2.c to libudf45\src
Creating user_nt.udf file for 3ddp_host ...
(system "copy "C:\PROGRA~1\ANSYSI~1\v201\fluent"\fluent20.1.0\sr c\udf\makefile_nt.udf "libudf45\win64\3ddp_host\makefile" ")
1 file(s) copied.
(chdir "libudf45")(chdir "win64\3ddp_host")'nmake' is not recognized as an internal or external command,
operable program or batch file.
Creating user_nt.udf file for 3ddp_node ...
(system "copy "C:\PROGRA~1\ANSYSI~1\v201\fluent"\fluent20.1.0\sr c\udf\makefile_nt.udf "libudf45\win64\3ddp_node\makefile" ")
1 file(s) copied.
(chdir "libudf45")(chdir "win64\3ddp_node")'nmake' is not recognized as an internal or external command,
operable program or batch file.

Done.

pakk · March 11, 2021, 04:24

'nmake' is not recognized as an internal or external command,
operable program or batch file.

This is your error.

Search for this text on this forum. It is a Fluent installation / configuration problem, it has nothing to do with your code. Your code is not even read. I am no expert on how to solve that.

gauravkmr · March 11, 2021, 06:36

Many many thanks for your concern on this thread.
Thanks again.

March 9, 2021, 10:49	Parallel temperature prandtl udf	#1
gauravkmr New Member Gaurav Kumar Join Date: Jan 2018 Location: Delhi Posts: 17 Rep Power: 8	How can I parallelize the following temperature prandtl number udf?? /* Specifying a Constant Temperature Prandtl Number */ #include "udf.h" DEFINE_PRANDTL_T(user_pr_t,c,t) { real pr_t; pr_t = 0.25; return pr_t; }

March 10, 2021, 09:32		#8
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	Oh, I hope that you did not really put Code: #include "udf.h" DEFINE_PRANDTL_T(user_pr_t,c,t) literally as one line... In all the examples in the manual, this is split into two lines: Code: #include "udf.h" DEFINE_PRANDTL_T(user_pr_t,c,t) If you put this as one line, it will probably not compile, and the compiler should have given you an error in line 1...

March 11, 2021, 04:24		#11
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	'nmake' is not recognized as an internal or external command, operable program or batch file. This is your error. Search for this text on this forum. It is a Fluent installation / configuration problem, it has nothing to do with your code. Your code is not even read. I am no expert on how to solve that. __________________ "The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform" is NOT the error after compiling. It is the error after loading. To see compiler errors, look at your screen after you click "build".

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March 9, 2021, 15:42		#2
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	There is nothing to parallelise here... Just use it.

March 9, 2021, 15:48		#3
gauravkmr New Member Gaurav Kumar Join Date: Jan 2018 Location: Delhi Posts: 17 Rep Power: 8	Thanks for your answer, but when I compile it in fluent, it shows error, that the code is not for parallel use.

March 10, 2021, 03:08		#4
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	Can you copy that error? I've never seen that one before when you compile...

March 10, 2021, 03:10		#5
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	And I assumed you had it working for serial, is that correct?

March 10, 2021, 03:14		#6
gauravkmr New Member Gaurav Kumar Join Date: Jan 2018 Location: Delhi Posts: 17 Rep Power: 8	Following is the error: The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform (win64). I had not worked it for serial, I just wrote the script and compiled then it shows the above error.

March 10, 2021, 09:30		#7
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	This is not the error you get when you compile. This is the error you get when you try to load. (Read it!) Show the error that you get after you click "build".

March 11, 2021, 03:10		#9
gauravkmr New Member Gaurav Kumar Join Date: Jan 2018 Location: Delhi Posts: 17 Rep Power: 8	I had split into two lines and wrote in notepad and saved in .c format.

March 11, 2021, 03:51		#10
gauravkmr New Member Gaurav Kumar Join Date: Jan 2018 Location: Delhi Posts: 17 Rep Power: 8	When I click build then TUI shows the below message. Copied E:\Projects\Gaurav\Simulation\18\pr2.c to libudf45\src Creating user_nt.udf file for 3ddp_host ... (system "copy "C:\PROGRA~1\ANSYSI~1\v201\fluent"\fluent20.1.0\sr c\udf\makefile_nt.udf "libudf45\win64\3ddp_host\makefile" ") 1 file(s) copied. (chdir "libudf45")(chdir "win64\3ddp_host")'nmake' is not recognized as an internal or external command, operable program or batch file. Creating user_nt.udf file for 3ddp_node ... (system "copy "C:\PROGRA~1\ANSYSI~1\v201\fluent"\fluent20.1.0\sr c\udf\makefile_nt.udf "libudf45\win64\3ddp_node\makefile" ") 1 file(s) copied. (chdir "libudf45")(chdir "win64\3ddp_node")'nmake' is not recognized as an internal or external command, operable program or batch file. Done.

March 11, 2021, 06:36		#12
gauravkmr New Member Gaurav Kumar Join Date: Jan 2018 Location: Delhi Posts: 17 Rep Power: 8	Many many thanks for your concern on this thread. Thanks again.