CFD Online Discussion Forums

CFD Online Discussion Forums (
-   ANSYS Meshing & Geometry (
-   -   ICEM-CFD (

Antonis June 30, 2006 03:06


Does anyone know what 'segmentation violation' means in ICEM-CFD? I get that message when I try to create the input files for the solver I'm using.



pc June 30, 2006 14:28

Segmentation violation for any program means a memory fault. Accessing beyond the limits of an array, accessing an array that's not allocated, etc.

vishal July 22, 2006 03:01

Hi, Segmentation violation means crash.It means the code behind that command is stucked/disturbed.


Raju April 6, 2011 02:28

regarding segmantation violation error
i am getting always an error that segmantation violation when i opened icem.
how can i rectify that problem.
please reply if you know.

screech1987 April 6, 2011 18:37

Depending on whether you are using ICEM off a server or based on a single machine could be something to due with insufficient memory or file access.
Get it sometimes when I am using it on big meshes and doing lots of dynamic zooming in and outs while its processing a change.

Robert@cfd June 21, 2011 15:52

Hi there

I am getting 'segmentation violation' when I try to convert my Pre-Mesh to Multiblock Mesh. It should not be a memory fault, because I tried it with a small mesh and even on a machine with 32GB RAM. I tried it on a Windows and a Linux machine.
I am using ICEM 12.1.

Is it possible that the geometry/blocking is the reason for the problem? Or do you guys have some other hints for me?

I appreciate any effort.

Thx, Robert

Robert@cfd June 22, 2011 10:22


Maybe the replay-function is the problem. I sometimes get weird errors when I am loading a replay-file. Also I cant replay my commands from the beginning to the end. I dont know why this is happening.

I tried building my mesh on ICEM 11.0 without using the replay-function. This time I can create the Multiblock Mesh but I get an error writing the data out (Output/Write Input).


Running ICEM CFD/CAE Multi-block Info Vers. 5.0.0

Error in unsh_gsfdims, idomnum=2
Error exit in unsh_gsfdims
Error creating multi-block neutral files...
child process exited abnormally
Done with translation.

I am using Multiblock-info / Nastran solver. It seems that the .dom files were created correctly, but the .topo file isnt complete.

Raju June 24, 2011 05:41

segementation violation

Segmentatiion violation error means: it may be geometry size problem or you are not having licence to access.


Robert@cfd June 24, 2011 08:57

Hi Raju, thx for your reply.
What does "geometry size problem" mean? Is it that my workstation is too weak (RAM, HDD, CPU) to handle the mesh? I dont think thats the problem.

Thx for the hint with the licencing, we are having a change because of ANSYS 13 and therefore I have problems with the ICEM OUT licence. Maybe there is another problem concerning the creation of the mesh files.

All times are GMT -4. The time now is 23:43.