The LINEAR option can be enabled (SET LINEAR 1) to minimize memory usage on models that are entirely linear.  When this option is in effect, the model generator can take steps to dramatically reduce overall memory consumption without sacrificing performance.  In fact, if all your models are linear, we recommend that you enable this option permanently as the default for your installation.  The one restriction is that models must prove to be entirely linear.  If a single nonlinearity is detected, you will receive an error message stating that the model is nonlinear and model generation will cease.  At which point, you should clear this option and attempt to solve the model again.

By default, the LINEAR option is disabled.