March 27, 2023 at 2:41 pmBartosz KraszewskiSubscriber
ANSYS version: 19.2
Platform: Linux CentOS 7.9
CPU: AMD EPYC 7552 48-Core
I'm performing a thermal numerical analysis of a 2 way FSI in Workbench: Fluent (VOF, Dynamic Mesh) + Transient Structural (Elements changed into Type 226) + System Coupling. I am using 46 cores for the analysis in Fluent and 36 cores for the Mechanical APDL.
After 2 weeks of analysis I am halfway through. The APDL .rst results file takes up 185 GB. However, from a certain Restart Point, saving the results ends with an error in Mechanical APDL:
Then, the solution process freeze. Reverting the analysis to a previous Restart Point also started causing this error. Other analyses on the workstation work fine. In the last correctly saved analysis, the memory allocation was as follows:
I am urgently asking for help in finding the cause of the problem. Is the data still recoverable?
April 10, 2023 at 1:06 pmAshish KhemkaAnsys Employee
Hi,SIG$SEGV is short for signal segment violation. Technically, it is described as an incorrect use of pointer or a buffer overflow (memory problems). It is a bug, whenever it happens, but it is difficult to relate the cause to any one particular issue. Based on previous call records, it has happened in the past with distributed solver and rezoning, but is not limited to these applications.If you are using a distributed solver then please uncheck that option and then run the analysis.For recovering the data, was the database file saved?Regards,Ashish Khemka
- You must be logged in to reply to this topic.
Boost Ansys Fluent Simulations with AWS
Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- License Error
- Error with workbench SceneGraphChart
- How can I renew ANSYS student version license?
- Workbench not opening
- Sizing on Ansys Workbench 19.2
- Workbench error
- Error: Exception of type ‘Ansys.Fluent.Cortex.Cortex not availableException’ was thrown
- Ansys2021R2 ansys212 seg faults immediately on RHEL8.2
- Licensing error while opening ANSYS Mechanical
- An error occurred when the post processor attempted to load a specific result.
© 2023 Copyright ANSYS, Inc. All rights reserved.