[ANSYS Meshing] How to increase meshing speed?

Sylwia · July 22, 2015, 16:38

Hi,

I am currently using Ansys meshing to generate the grid for my model. Unfortunately it is working really slow... I use Ansys 15.0, my computer is 16GB RAM and i7, 4 cores, However Ansys permanently uses only around 7GB memory and 20% of the CPU... Geometry is quite complicated and usual number of cells is around 6-7 mln. However the process of meshing is taking around 3-4 hours! I also got Ansys 16 on the virtual machine with 64GB of RAM, but meshing is exactly as slow as on my computer.

Could you help me somehow? How I can increase meshing speed? Why the software doesn't use full capacity of the computer?

Thanks

Kapi · July 22, 2015, 19:42

HI Sylwia,

Meshing uses 1 core to mesh so it will be same speed in any computer.
If you have multiple license available then depending upon size of mesh , meshing utilizes other license to make it faster.
The only way to make it faster is by having more than 1 license.

Cheers
KAPI

siw · July 23, 2015, 03:51

Maybe this section of the Meshing User Guide will help: Meshing User's Guide / Global Mesh Controls / Advanced Group / Number of CPUs for Parallel Part Meshing.

Sylwia · July 23, 2015, 10:02

I already tried already to change the number of CPU in Ansys Options, but it didn't change the meshing speed. So I guess I have only one licence...

Thank you!

July 22, 2015, 16:38	How to increase meshing speed?	#1
Sylwia New Member Join Date: Jul 2015 Posts: 2 Rep Power: 0	Hi, I am currently using Ansys meshing to generate the grid for my model. Unfortunately it is working really slow... I use Ansys 15.0, my computer is 16GB RAM and i7, 4 cores, However Ansys permanently uses only around 7GB memory and 20% of the CPU... Geometry is quite complicated and usual number of cells is around 6-7 mln. However the process of meshing is taking around 3-4 hours! I also got Ansys 16 on the virtual machine with 64GB of RAM, but meshing is exactly as slow as on my computer. Could you help me somehow? How I can increase meshing speed? Why the software doesn't use full capacity of the computer? Thanks

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July 22, 2015, 19:42		#2
Kapi Senior Member Join Date: Apr 2014 Location: Melbourne Posts: 584 Rep Power: 14	HI Sylwia, Meshing uses 1 core to mesh so it will be same speed in any computer. If you have multiple license available then depending upon size of mesh , meshing utilizes other license to make it faster. The only way to make it faster is by having more than 1 license. Cheers KAPI

July 23, 2015, 03:51		#3
siw Senior Member Stuart Join Date: Jul 2009 Location: Portsmouth, England Posts: 742 Rep Power: 26	Maybe this section of the Meshing User Guide will help: Meshing User's Guide / Global Mesh Controls / Advanced Group / Number of CPUs for Parallel Part Meshing.

July 23, 2015, 10:02		#4
Sylwia New Member Join Date: Jul 2015 Posts: 2 Rep Power: 0	I already tried already to change the number of CPU in Ansys Options, but it didn't change the meshing speed. So I guess I have only one licence... Thank you!