A fatal error has been detected during input processing:
*** ERROR # 3405 ***
Internal overflow happened due to the large size of model.
This version of OptiStruct can not solve it.
Could somebody help me to solve this problem
Hi Mithun,
This error is due to huge model size
Does it happen in 2017.2 HyperWorks?
yeah its the same in that as well. btw did you get a chance to look at the model. In the model I sent you, what do you think is the best constraint for the send part of optimization
So I'm Also having this problem on 2017.2.
Model summary:
FINITE ELEMENT MODEL DATA INFORMATION : ---------------------------------------
Total # of Grids (Structural) : 510577 Total # of Elements Excluding Contact: 2829184 Total # of S2S Contact Elements : 16189 (no internally created CGAPG) Total # of Degrees of Freedom : 1513786 (Structural) Total # of Non-zero Stiffness Terms : 36782845
Hardware:
************************************************************************ ** Linux 3.0.101-63-default ** 48 CPU: Intel(R) Xeon(R) CPU E7-8857 v2 @ 3.00GHz ** CPU speed 3000 MHz ** 1033916 MB RAM, 65473 MB swap
Anyone know if there is a solution?
Hi,
Let me guess, you have lot of elements and many load cases. Try unchecking a few load cases for the analysis
Hi, with help of the Altair Support I found the solution.
Solution for me was to put the '-i64' flag as a run option.
'-i64' Use executable compiled with 64-bit integer, same as -altver i64
You can see my model size above and I had two loadcases.
Using 64 bit solver should solve with 2017.2.
You can add this using ControlCards>>PARAM>>I64SLV
