The Algorithm for Differential Algebraic Equations

The first step is to detect the presence of implicit variables. If these are found, Simcenter Amesim will always use the DASSL integrator. This was chosen as the most highly developed integrator for DAEs.

It was originally expected that use of DAEs would be rare. However, experience has shown that when users have the opportunity to use DAEs, they employ them extensively. Hence about 50% of Simcenter Amesim simulation runs employ DASSL.