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Nexxim Simulator >
Nexxim DC Analysis >
Convergence, Speed, and Accuracy >
Summary of Effects of DC Options

Summary of Effects of DC Options

The table below summarizes the options that affect the convergence, speed, and accuracy of the DC operating point simulation.

**Effect of Options on DC Operating Point Simulation**
Simulation Result	Effect of Option
Simulation Result	Improve	Worsen
Convergence	Increase max_newton_iterations Decrease limiting_step Increase max_continuation_iterations Increase reltol, vntol, abstol Increase alpha, beta Set conv=3, 4, or 5	Decrease max_newton_iterations Increase limiting_step Decrease max_continuation_iterations Decrease reltol, vntol, abstol Decrease alpha, beta Set conv=2 Set autoconverge=0
Speed	Increase limiting_step Increase reltol, vntol, abstol Set conv=2	Decrease limiting_step Decrease reltol, vntol, abstol Set conv=3, 4, or 5
Accuracy	Decrease reltol, vntol, abstol Decrease alpha, beta	Increase reltol, vntol, abstol Increase alpha, beta

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