Solver Exit. CCX

Vinicius_Petrucci

could someone help me understand why my model does not calculate?
I'm really having a hard time finding any errors

Victor

I find it solves with CCX_PARDISO.exe 2.17 dated "niedz., 26 lip 2020 19:57:20" but not with the default CCX.exe 2.17 included with Mecway dated "Wed Jun 16 14:14:29 2021".

It may be too big.

prop_design

using the v2.18 ccx_dynamic.exe file from the ccx website, the pastix solver completed in 4min 35sec, using 3 cores. i have 16gb of memory. the von mises stress is shown below.

Vinicius_Petrucci

thank you very much, i will look for a way to update the solver.

can you tell me if i should use this forum link?

https://mecway.com/forum/discussion/1012/improving-performance-of-ccx-solver#latest

prop_design

keeping the solvers up to date is a moving target. there are several threads on the forum talking about it. everyone's setup is different unfortunately.

Vinicius_Petrucci

@victor , @prop_design

It really worked by changing the calculix version as indicated.

as I'm not familiar with programming, I found a compiled version on the calculix forum but not optimized for my PC [since it used only one core], replace it in the mecway folder and everything worked.

link:https://calculix.discourse.group/t/calculix-and-pastix-solver-windows-version/130/22

I will install the libraries and try to better understand how to optimize it.

Thank you very much