Max. RAM in Flow3D
 

Hi. I have a workstation with 8Gb RAM. But apparently Flow3D can only use 1 Gb RAM. If the size of the mesh needs more than 1Gb of RAM for the calculation the machine starts to swap between the harddisk and CPU and the performance gets close to 0%. Does anyone have the same problem or is it some settings in my software? Thanks.

Re: Max. RAM in Flow3D
 

Lars i believe this is limited by 32bit OS system. you may need to upgrade to 64bit OS system to fully utlized your 8Gb RAM. hope this help.

Rgds CK

Re: Max. RAM in Flow3D
 

Hi CK. Thanks for your reply. I actually do have 64bit WIN XP. My worry was that my Flow3D version (9.3.1) had a bug that prevented the software from using more than 1Gb. I would therefore like to hear if anyone elso had experienced the same problem with this version. My older version, ver. 9.0 did not have this problem.

Re: Max. RAM in Flow3D
 

Lars,

FLOW-3D does not have a limitation on the memory use other than what the system can handle. It certainly cannot control swapping, this is done by the OS. I am not sure how it is done on Windows. Isn't there a paging file? Can you check its size under Control Panel>System>Peformance>Advanced? It should be at least as big the the total RAM on the machine.

Michael

Re: Max. RAM in Flow3D
 

Hye!

I also work on WINXP 64 OS with 8GO RAM, and have the same limitation at 1 GO used by F3D. I have made the manipulation Michael advices, but without success...

Still searching...

Julien