how to reduce reducing rpvar dpm/parallel/loop-factor
 

Ciao!

During DPM iteration I got two messages:

1 - "Please consider reducing rpvar dpm/parallel/loop-factor to reduce the number of incomplete tracks in parallel.
Current value is 10."

2 - "Parallel particle tracking concurrency 56%"

for the first one I cannot find this value to reduce. How can I reduce this number?
for the next, what does this mean?
Thanks.

Hi!

Since it is mentioned that the current value is 10, then you can easily reduce it by this command:

(rpsetvar 'dpm/parallel/loop-factor **)

here ** is the value that you want to set for instance 5.

About "Parallel particle tracking concurrency", when you run the DPM parallel with the flow iteration, this percent show you how much of released particle simulated with the flow iteration. the higher value shows more accuracy.

Hi Tarantino,

Have you figured out how to do that? I tried what Asal suggested and Fluent said ''invalid command". So Can you give me a hint if you solved it.

Thanks,
Richard

Hi Astio,

Like I replied to Tarantino, I don't know how to do it. Can you give more details?

Thanks,
Richard

hi!

What Asal said, was worked for me! I don't know what is the problem in your case!!

hello,

Did you mean put the text "(rpsetvar 'dpm/parallel/loop-factor 5)" into the Text User Interface?

It says ""invalid command [(rpsetvar]."" Then How did you apply the command?

Thanks,

If you have enough memory (cas file not too big), you can try to open the .cas file with a text editor and search for the line:
dpm/parallel/loop-factor 10

Edit it and save the cas.
Not sure it will work

wow that's impressive. I'll try thanks.

I tried and couldn't be able to open the cas file. It's like 150+ M. Maybe too big. Any further suggestions?

Thanks

Hello!

I give it a try again to make sure:


It's work fine for me!
What is the version of Fluent which you have used? Did you used Lagrangian method?
You had another problem!

Hi Tarantino,

Thanks for your reply. Maybe it's because of the Fluent version. The fluent is 15.0.
Yes I enabled the Lagrangian method. (one-way DPM coupling)

http://www.cfd-online.com/Forums/dat...AAAElFTkSuQmCC

Thanks

If you did not try, avoid copy paste of the command and type yourself the command in the text user interface, then press enter.

Hey Daniele,

Bingo! I appreciate a lot.

Thanks

I met the same question as you。Can you list the steps in detail? Thank you！