Dakota Reference Manual
Version 6.4
LargeScale Engineering Optimization and Uncertainty Analysis

Singular convergence tolerance
Alias: none
Argument(s): REAL
Default: 1. (use NL2SOL internal default)
singular_conv_tol
(NL2SOL's sctol
) is the singular convergence tolerance, which works in conjunction with singular_radius to test for underdetermined leastsquares problems (stop when the relative reduction yet possible in the sum of squares appears less then singular_conv_tol
for steps of scaled length at most singular_radius).
The internal default is a function of machine epsilon (as limited by function_precision
). The default is selected with a value of 1.