Tips for Improving Solver Performance for a Model

What are some suggestions to increase the analysis speed?

To increase the speed:

1. Determine if there are nonlinearities in the model. These would include plasticity, hyperelasticity, large deflection, or contact of any type other than bonded to other nonlinear element types (e.g., combin37, combin39, prets179, etc). The presence of nonlinearities can significantly increase the solution time. So, reducing or removing the nonlinearities will lower the solution time the most.
2. Reduce the model size. This usually means the number of nodes but if there are constraint equations (CEs) in the model, reducing the number of CEs will speed it up. A point mass element attached to a surface that contains a lot of nodes creates a lot of CEs.
3. Write the minimum result data at the minimum number of time points to speed up solve time.
4. Reduce the number of substeps and load steps. However, unless you have put in a very small-time step or other setting that forces many solutions, this will not affect the solution time.
5. Increase the maximum number of utilized cores under the solve process settings.