cplex02.gms : CPLEX test suite - tuning test
Contributor: Michael Bussieck
Small Model of Type: GAMS
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$TITLE 'CPLEX test suite - tuning test' (CPLEX02,SEQ=356)
$ontext
Contributor: Michael Bussieck
$offtext
$ifi %system.platform% == AXU $exit No CPLEX 11 or higher for this platform
$ifi %system.platform% == DAR $exit No CPLEX 11 or higher for this platform
$call gamslib -q cube
$call grep -v Option cube.gms | grep -v Solve > cubex.gms
$onecho >> cubex.gms
Scalar deftime Default time, tuntime Solution time after tuning;
* Solve using default
cube.optfile=0; Solve cube minimizing num using mip; deftime = cube.resusd;
* Do tuning
cube.optfile=1; Solve cube minimizing num using mip;
* Use tuned option file
cube.optfile=99; Solve cube minimizing num using mip; tuntime = cube.resusd;
* Hope for at least 10% improvement
display deftime, tuntime;
abort$(0.9*deftime<tuntime) 'Less than 10% improvement by tuning';
$offecho
$echo * Empty > cplex.o99
$echo tuning cplex.o99 > cplex.opt
$call =gams cubex lo=0 optcr=0 mip=cplex
$if errorlevel 1 $abort 'problems with CPLEX tuning option'
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