Static stress: Error: Solver error, only when run locally

[Anonymous]

I was trying to do a very simple analysis of my model with one external force applied. But I got a Solver-error when I did the analysis locally. But if I set up the exact same simulation study, and chose to solve it in the cloud it could solve without trouble. Which seems very weird. Why am I not able to solve locally?

Regards

Chris

[Andrew.Sartorelli]

Hi @Anonymous,

Welcome to the Fusion 360 community! Sorry to hear that you are having problems running your analysis locally. This has been reported on some macOS and Windows 10 environments, could you share the details of which operating system and version you are using? What is the error message that you receive when the analysis fails locally? Typically if it is FATAL ERROR S1101 or S1121 you can simply try re-running the analysis once or twice and it should go through successfully.

Best Regards,

Andrew

[ryderbrooks]

The official Autodesk solution to this problem is "try re-running the analysis once or twice and it should go through successfully".  Is this a joke?

[Andrew.Sartorelli]

Hi @ryderbrooks,

At present this issue appears to be isolate to a certain subset of operating systems and does not present it self at every run. The development team is hard at work trying to resolve the matter and has been using user feedback to hone in on the specific environments where there this problem has been occurring. In the interim, we recommend users to simply re-run the analysis if they prefer to use local solve, or they can always use cloud solve.

Best Regards,

Andrew

[Anonymous]

Summary:
Error: Solver Error
Error: An error occurred while solving the model.
Hi @Andrew.Sartorelli

I am running Windows 10 home. Version 1607.

Below is the report I get from the analysis. No specific error as far as I can tell.

###

Mesh Details:
33446 Tetrahedra : 100.0% of elements (100.0% of volume)
Face Angle min: 3.08, max : 161
Dihedral Angle min: 1.68, max : 177
Worst shape ratio : 83.9 on element 31356
Worst aspect ratio : 14.6 on element 33407, shortest edge: 0.000155, longest : 0.016
Lowest collapse ratio : 0.0199 on element 31356
Worst Jacobian ratio : 3.19 on element 29024
Base mesh: 52916 nodes, 33446 elements
Solver mesh: 52916 nodes, 33446 elements
Job has finished with errors. Receiving results.
Error: Solver Error
Error: An error occurred while solving the model.

###

[Andrew.Sartorelli]

Hi @Anonymous,

Thanks for providing me details on the operating system that you are using, this will certainly help development track down the problem. What happens when you try to re-run the analysis a few times? Does it always fail, or does it periodically succeed? If it's always failing, could you share the model with me so I can try running it on my machine?

Thanks,

Andrew

[Anonymous]

It seems to always causing errors.

My model is attached.

[Andrew.Sartorelli · Accepted solution]

Hi @Anonymous,

Thanks for attaching your model! I downloaded it and I was able to run everything locally without problem, which does point to the issue being associated with your environment. I will check with the development team on any further steps we can take. In the interim, it looks like you might be a student if that's the could you should have access to free cloud solving. Are you OK with running things in the cloud for the time being?

Thanks,

Andrew

[Anonymous]

Yes, I am a student. As long as it does not cost money, I have no problem with running it on the cloud. 

Thanks for the fast response and investigation of the problem @Andrew.Sartorelli!

[AndrewSears]

Hi All,

I moved the last post from Gert to a new thread since this one was marked as solved.  http://forums.autodesk.com/t5/design-validate-document/re-static-stress-error-solver-error-only-when...

Andy 

[Anonymous]

I am receiving the exact same response when trying to do a very simple simulation locally. I ran it in the cloud with the exact same setup on my personal hobbyist account but it will not work with my paid work account. My computer is running Windows 10 Enterprise. We are trying to evaluate this software for my company and this is a complete show stopper if we can't run very basic simulations.

Summary:
Error: Solver Error
Error: An error occurred while solving the model.

Mesh Details:
6230 Tetrahedra : 100.0% of elements (100.0% of volume)
Face Angle min: 7.94, max : 145
Dihedral Angle min: 6.64, max : 150
Worst shape ratio : 11.8 on element 3788
Worst aspect ratio : 7.86 on element 3322, shortest edge: 0.000707, longest : 0.0136
Lowest collapse ratio : 0.134 on element 3017
Worst Jacobian ratio : 2.42 on element 790
Base mesh: 12160 nodes, 6230 elements
Solver mesh: 12160 nodes, 6230 elements
Job has finished with errors. Receiving results.
Error: Solver Error
Error: An error occurred while solving the model.

[James.Youmatz]

Hi @Anonymous,

Sorry for the late response and welcome to the Fusion 360 Community!

Just to check, are you still seeing this error? The simulation will solve successfully via the cloud, but not via your local computer? Couple quick things we can try if this is the case:

• Open the offending design
• Make a small change (such as suppress a load) and then change it back
• Save the document
• Exit out of the open model (not Fusion!)
• Go to the Help menu and clear the local user cache
• Restart Fusion and try to run the simulation locally

Does it solve? If not, can you share a download link to your model with me so that I can test around?

Thanks,

[MACABItech]

We are all human, for now. 

But I appreciate the honest answer from Autodesk, as long as they are actually searching for a solution simultaneously. it seems like they are. Obviously, I wish it was faster, but its still a phenomenal tool.

[Anonymous]

James,

I am also having this issue on just about every local run under Windows 10.  Running it again will usually solve the issue, but it occurs at every model update.  Fairly annoying.

Can not share the model, but see the error message below (there is plenty of disk space):

Error: 0
Cause : This is an internal error and should not occur under normal circumstances. The primary
cause of this error is due to insufficient disk space.
Action : Check to make sure there is sufficient amount of space on your hard drive. Purge the
temporary files and re-run the analysis. If you are running the analysis on a remote
file system (i.e., through a network), attempt to re-run the analysis on a local hard
drive. If the problem continues, please send the Model Input File to Autodesk
technical support. Note the version of Autodesk Nastran you are using.

-Joe

[Anonymous]

The error message as shown below is a recurring issue ... Can anyone help me with this

Worst shape ratio : 340 on element 683
Worst aspect ratio : 26.4 on element 6150, shortest edge: 5.61e-05, longest : 0.0232
Lowest collapse ratio : 0.00589 on element 683
Worst Jacobian ratio : 2.8 on element 742
Base mesh: 1135687 nodes, 590575 elements
Solver mesh: 1135687 nodes, 590575 elements
Job has finished with errors. The Cloud Credits for this job will be refunded. Receiving results.
Error: Solver Error
Error: An error occurred while solving the model.