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[ANSYS Meshing] Parallel meshing utilisation failing

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Old   February 14, 2019, 02:42
Default Parallel meshing utilisation failing
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Chris C
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Hi all,


I am trying utilise as much CPU/computational power to perform mesh generation on my PC as possible (I do not need to use the computer for anything other than meshing).



I have seen tutorials online (e.g. https://www.youtube.com/watch?v=VDc_KGFKcrU) how to do this but does not seem to affect CPU performance or change mesh times.


Settings used:

  • Software: Ansys workbench meshing 18.2
  • Mesh: ~80,000 nodes (test geometry)
  • Mesh type: See "mesh image" (mesh chosen is a simplified version (to test times) of actual case which is significantly more dense 0.5 - 1 million cells)
  • Physics preference: CFD

PC used:



See images


*


I performed two tests, see below:


Test 1:


number of CPU’s for meshing method = 0
number of CPU’s for parallel part meshing = programme controlled
CPU utilisation ~ 30% (estimated)

Meshing time = 4m 20s



Test 2:

number of CPU’s for meshing method = 4

number of CPU’s for parallel part meshing = 4

CPU utilisation ~ 33% (estimated)
Meshing time = 4m 23s



See images for PC performance during the two tests meshing processes.


How can I utilise all possible computational resources to reduce meshing times? I am happy to use any and all resources the PC has (all 8 CPU's) and will not use the computer for anything other than meshing.


Any and all help and advice will be very warmly received.


Many thanks.



Regards,


Christopher

Attached Images
File Type: jpg Test 1 Results.jpg (86.8 KB, 3 views)
File Type: jpg Test 2 Results.jpg (88.3 KB, 3 views)
File Type: jpg Mesh imaGE.jpg (184.4 KB, 3 views)
File Type: png PC used.PNG (12.4 KB, 3 views)
File Type: png PC used 2.PNG (12.2 KB, 3 views)
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cpu usage, meshing 2d, meshing and geometry, parallel, parallel meshing

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