The Direct Preconditioner node () is an attribute that you can add as a preconditioner. Using a direct solver as a preconditioner makes it possible to solve one of the physics interfaces in a multiphysics model using a direct solver. With this preconditioner you can use a direct solver for one of the smaller fields (an ODE, for instance) and combine it with another more efficient solver for another larger physics problem (a displacement field in 2D or 3D, for instance).

The settings in the Direct Preconditioner node’s Settings window’s General section are the same as for the Direct solver node (see Direct).

Use the settings in the Hybridization section to set up a hybrid preconditioner where the direct preconditioner is active for some dependent variables. See Hybrid Preconditioners for more information.