Use Iterative Solver
Select this item to run a study with the iterative solver instead of the direct block solver. The Structure engine uses the direct solver by default because it usually uses less time, disk space, and/or memory than the iterative solver. For more information about choosing a solver and when to use the iterative solver instead of the direct solver, see
Select the Solver.
You can use the iterative solver in the following situations:
• if you ran out of disk space running a design study using the direct solver
• if a run is very time-consuming using the direct solver
• if you are running a linear static analysis and your model is a solid
The iterative solver has the following limitations:
• If you are running a global sensitivity or optimization design study, you must select Repeat P-Loop Convergence when you create the study.
• If you are running a local sensitivity or optimization design study, none of the analyses in the study can have temperature loads in Structure that refer to thermal analyses.
• If your design study contains any modal analyses, Creo Simulate does not use the iterative solver for those analyses.
For some models, the iterative solver may not converge. If a design study does not converge, the run terminates, and you must re-run the study without the iterative solver.
When you select this item, the following additional items appear on the dialog box: