# DOPTPRM, OBJTOL

Bulk Data Entry Relative convergence criterion.

## Definitions

Parameter Values Description
OBJTOL Real > 0.0

Default = 0.005

If relative change in the objective function between two design iterations is less than OBJTOL, then optimization stops.

A relative change in the objective function of 0.005 is the same as a 0.5% change in the objective function.

For Lattice Structure Optimization, the default is set to 0.001.