[destroy]

Dear all,

Im running simulation on the workstation with 20 processors.

After instaling updates from Windows 10, Im getting the following error in fluent:

Note: Rank = 3: Process affinity not being set (9).

The above text is displayed after opening the Fluent case and data from workbench. However, it is possible to calculate the simulation, but im running only on 1 processor, in Task manager my processor load is 4% comparing to 98% before the problem appeared.

When Im closing Fluent, I obtain this text:



I tried to restart the computer, I also reinstalled ANSYS twice, didnt help. I tried also to change in Fluent launcher the MPI type but still the same problem.
It is impossible to uninstall the updates from Windows.



Do you have any suggestions what else could I try?

Kind regards
Destroy

[@Arash]

Originally Posted by destroy

Dear all,

Im running simulation on the workstation with 20 processors.

After instaling updates from Windows 10, Im getting the following error in fluent:

Note: Rank = 3: Process affinity not being set (9).

The above text is displayed after opening the Fluent case and data from workbench. However, it is possible to calculate the simulation, but im running only on 1 processor, in Task manager my processor load is 4% comparing to 98% before the problem appeared.

When Im closing Fluent, I obtain this text:



I tried to restart the computer, I also reinstalled ANSYS twice, didnt help. I tried also to change in Fluent launcher the MPI type but still the same problem.
It is impossible to uninstall the updates from Windows.



Do you have any suggestions what else could I try?

Kind regards
Destroy

Hi Dear friend,

I use an Intel core i9-13900k processor that has 24 physical cores. When I use the number of cores for example 14 or 16 or... in order to parallelize and reduce the solution time, my solution goes slowly. What should I do ?
I selected 16 cores in the Fluent window and then imported the mesh file into Fluent. As soon as Fluent opens in the console, I receive the following message:


Note: Rank = 0: Process affinity not being set (6).
Note: Rank = 1: Process affinity not being set (6).
Note: Rank = 2: Process affinity not being set (6).
Note: Rank = 3: Process affinity not being set (6).
Note: Rank = 4: Process affinity not being set (6).
Note: Rank = 5: Process affinity not being set (6).
Note: Rank = 6: Process affinity not being set (6).
Note: Rank = 7: Process affinity not being set (6).
Note: Rank = 8: Process affinity not being set (6).
Note: Rank = 9: Process affinity not being set (6).
Note: Rank = 10: Process affinity not being set (6).
Note: Rank = 11: Process affinity not being set (6).
Note: Rank = 12: Process affinity not being set (6).
Note: Rank = 13: Process affinity not being set (6).
Note: Rank = 14: Process affinity not being set (6).
Note: Rank = 15: Process affinity not being set (6).


When using the number of cores, for example 14 or 16 or... my solution is slow and very annoying.
Please help me what to do?

Thankyou