jobshop.MainTest
This is a java main class that you can use to run some small tests. It comes with some initial code to get you started when exploring the encodings.
jobshop.Main
This is the principal entry point that aims at helping you running many solvers on many instances and comparing the results. It expects several command line arguments to specify which solvers to run and which instance to solve.
Usage: jsp-solver [-h] [-t TIMEOUT] --solver SOLVER [SOLVER ...]
--instance INSTANCE [INSTANCE ...]
Solves jobshop problems.
named arguments:
-h, --help show this help message and exit
-t TIMEOUT, --timeout TIMEOUT
Solver timeout in seconds for each instance.
(default: 1)
--solver SOLVER [SOLVER ...]
Solver(s) to use (space separated if more than
one)
--instance INSTANCE [INSTANCE ...]
Instance(s) to solve (space separated if more
than one). All instances starting with the given
String will be selected. (e.g. "ft" will select
the instances ft06, ft10 and ft20.
# Running the Main program with gradle
❯ ./gradlew run --args="--solver basic --instance ft06"
The command line above indicates that we want to solve the instance namedft06
with the basic
solver. It should give an output like the following :
basic
instance size best runtime makespan ecart
ft06 6x6 55 1 60 9.1
AVG - - 1.0 - 9.1
Fields in the result view are the following :
instance
: name of the instancesize
: size of the instance {num-jobs}x{num-tasks}
best
: best known resultfor this instanceruntime
: time taken by the solver in milliseconds (rounded)makespan
: makespan of the solutionecart
: normalized distance to the best result: 100 * (makespan - best) / best
One can also specify multiple solvers (below basic
and random
) and instances (below ft06
, ft10
and ft20
) for simultaneous testing:
❯ ./gradlew run --args="--solver basic random --instance ft06 ft10 ft20"
basic random
instance size best runtime makespan ecart runtime makespan ecart
ft06 6x6 55 1 60 9.1 999 55 0.0
ft10 10x10 930 0 1319 41.8 999 1209 30.0
ft20 20x5 1165 0 1672 43.5 999 1529 31.2
AVG - - 0.3 - 31.5 999.0 - 20.4
Here the last line give the average runtime
and ecart
for each solver.
Tip: When selecting instance to solve, you can only provide a prefix to instance name. All instances that start with this prefix will be selected.