General options¶

--readbas=basfile

read starting basis from file

--writebas=basfile

write terminal basis to file

--writefile=lpfile

write LP to file in LP or MPS format depending on extension

--writedual=lpfile

write the dual LP to a file in LP or MPS format depending on extension

--type:name=val

change parameter value using syntax of settings file entries

--loadset=setfile

load parameters from settings file (overrules by command line parameters)

--saveset=setfile

save parameters to settings file

--diffset=setfile

save modified parameters to settings file

--extsol=value

external solution for soplex to use for validation

Limits and tolerances¶

-ts

set time limit to s seconds

-in

set iteration limit to n

-feps

set primal feasibility tolerance to eps

-oeps

set dual feasibility (optimality) tolerance to eps

-leps

set validation tolerance to eps

Algorithmic settings¶

Default settings are marked with *

--readmode=value

choose reading mode for lpfile (0* - floating point, 1 - rational)

--solvemode=value

choose solving mode (0 - floating-point solve, 1* - auto, 2 - force iterative refinement)

--arithmetic=value

choose base arithmetic type (0 - double, 1 - quadprecision, 2 - higher multiprecision)

--precision=value

choose precision for multiprecision solve (only active when arithmetic=2, possible values are 50, 100, and 200)

-svalue

choose simplifier/presolver (0 - off, 1* - internal)

-gvalue

choose scaling (0 - off, 1 - uni-equilibrium, 2* - bi-equilibrium, 3 - geometric, 4 - iterated geometrix, 5 - least squares, 6 - geometric-equilibrium)

-pvalue

choose pricing (0* - auto, 1 - dantzig, 2 - parmult, 3 - devex, 4 - quicksteep, 5 - steep)

-rvalue

choose ratio tester (0 - textbook, 1 - harris, 2 - fast, 3* - boundflipping)

Display options¶

-vlevel

set verbosity to level (0 - error, 3 - normal, 5 - high)

-x

print primal solution

-y

print dual multipliers

-X

print primal solution in rational numbers

-Y

print dual multipliers in rational numbers

-q

display detailed statistics

-c

perform final check of optimal solution in original problem