What is the use of the nonsymmetric solver?


The nonsymmetric solver is able to improve the convergence. However, it should only be activated if there are really convergence problems.

For certain material models, you can also be requested to activate the nonsymmetric solver.

In the case of the "normal" equation solver, it is necessary to only save one side of the matrix as it is symmetric to the main diagonal. In the case of the nonsymmetric solver, it is necessary to save both sides and also create them previously, of course. This requires more memory and longer processing time.

For a model that converges well anyway, the nonsymmetric solver only leads to a longer computing time and is of no use.


Solver Stiffness matrix Calculation parameters

Contact us

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

(267) 702-2815


RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD