Learning Forum

[flavio.brighenti]

Hi all,
I've been running the same model with small variation in terms of mesh, but never had issues solving it. My problem rises when I create linearized stress solutions (no more than 5 or 6 in various points of the structure). I've noticed that the RAM-usage increases drammatically (up to 100%) to a point where if I close mechanical and then restart it it will take ages to reopen (if it reopens - sometimes it crashes).
I cannot find a solution to this, I've just found out what is causing it thanks to this post https://innovationspace.ansys.com/forum/forums/topic/ansys-2024-takes-forever-to-load/ although not exactly the same reason.
Anyone has a solution?
Thanks!

[Gary_S]

This seems similar to a known bug in 2024R1. 
There is a Service Pack for 2024R1 (SP3) that may help, although I would use 2024R2. 
Note: Even with the 2024R1 (SP3) / 2024R2, it will take time to open the Mechancial the first time. 
Allow Mechanical to open the analysis, then make a small change (rename a branch, add a coordinate system etc) then Save, Close and reopen.
Resuming thereafter should then be normal. 

[shibinkodassery1234]

 

Hi all,

I started working with my project which consumes about 2 Gb and my current state is (28.5 Gb) mentioned below.
Continuing modeling, saving, and then reopening the file, theRAM usage increases a lot.

After solving, it becomes even higher.
The strange part is that even if I clear generated data, the RAM is not released and it keeps on increasing.

I am working on Ubuntu (Linux), and I checked this in htop, where I can clearly see the PID and RAM consumption of ansyswbu.exe continuously increasing.

I couldn’t find any way to solve this issue so far.

( 20759  28.5  37551716 /usr/ansys_inc/v241/aisol/CommonFiles/linx64/ansyswbu.exe -DSApplet -nosplash -notabctrl -port 38249 -featureflags meshing.scmeshingtofluidflows;mechanical.material.cylindricalfv;mechanical.lsdynaenhanced2;mechanical.sncurve; -modelcon Model 4 -cap 10115 -cap 10124 )

 

[Ashish Khemka]

Hello,

This is an old post. Please create a new query/ post.

Regards,

Ashish Khemka