|trap||trap, gear||Simulation Options/Timestep|
|global||global, local, noshell||Simulation Options/Parser|
The parhier option variable can be set to one of the keywords ``global'' or ``local''. The ``global'' setting retains default behavior. The ``local'' setting reverses the precedence to bottom-up. In this case, parameter definitions at the lowest level within subcircuits will have precedence.
The parameter scoping rules are identical to HSPICE in release 3.2.15 and later. Earlier releases had different scoping rules, with the default being closer but not identical to the ``local'' rule.
|global||global, local||Simulation Options/Parser|
If not set, or set to ``interpolate'', output points are interpolated from internal time points to the user time increments, with degree 1 (the default) to 3, set by the interplev variable.
If set to ``hitusertp'', then during transient analysis the time step will be cut so as to land on the user time points. This requires more simulation time, but provides the greatest accuracy.
Setting to ``nousertp'' will cause internal timepoint data to be saved, either in internal data structures in interactive mode or in the rawfile in batch mode. The amount of data can grow quite large.
If set to ``fixedstep'', operation is similar to ``hitusertp'', however the internal time step is constrained to this value exactly. No smaller time step is taken, if convergence fails then the run terminates. The time delta is that given for the transient analysis. This mode is only useful for debugging as truncation error is ignored. As a side-effect the integration method will be rectangular.
|interpolate||interpolate, hitusertp, nousertp, fixedstep||Simulation Options/Timestep|