To set these directives, assign a string specifying their values to the AMPL option donlp2_options
. For example:
ampl: option donlp2_options 'epsx=1e-6 maxit=100';
Directives:
maxfwd max vars in fwd AD of common exprs (default 5) tau0 sum of constraint violations allowed during iteration (default 1.d0) del0 initially an inequality g is binding if g/max{1,||grad g||}<=del0 (default 1.d0) epsx required precision in primal solution (default 0.00001) maxit iteration limit (<= 4000) nreset allowed number of successive steps with insignificant changes in x or f intakt write iteration protocol also to stdout =0 off (default) =1 on silent write results and messages on special events to file *.pro and *.mes (default =1: on) outlev composed from 4 bits: bit 1 ="0" means no output , "1" one line per step, bit 2 ="1" short iteration protocol bit 3 ="1" detailed iteration protocol (primal and dual sol's, stepsizes etc.) bit 4 ="1" print also gradients and hessian estimate prou unit number for output protocol meu unit number for special events messages protocol wantsol solution report without -AMPL: sum of 1 ==> write .sol file 2 ==> print primal variable values 4 ==> print dual variable values 8 ==> do not print solution message