PB'07 evaluation: results by benchmark

Results by benchmark for category optimisation, big integers, linear constraints (OPT-BIGINT-LIN), subcategory Handmade, subsubcategory Course Assignment

This page displays the results of the different solvers for each benchmark for category optimisation, big integers, linear constraints (OPT-BIGINT-LIN), subcategory Handmade, subsubcategory Course Assignment

REMINDER

Keep in mind that the 'Best result' columns only provide the best result given by one of the solvers. This 'Best result' may be wrong in case of an UNSATISFIABLE or OPTIMUM FOUND answer (because there's no efficient way to check these answers).

Description of a cell contents:

Cell exampleMeaning
AnswerSolver result
f=...value of the objective function for the model reported by the solver
TT=...Total Time (TT): this is the CPU time (in seconds) used by the solver until termination. This time is only meaningful for complete solvers because incomplete solvers will always run until they time out
T1=...Time to get the best model (T1): this is the wall clock time (in seconds) ellapsed when the solver found its best model. This time is obtained from the 'o lines'. It is useful to compare both complete and incomplete solvers. It doesn't take into account the time to prove optimality of the solution.
Remember that CPU time and wall clock time are two very different notions. The CPU time represents the time during which the instructions of the solver were executed by the processor. The wall clock time represents how much time ellapsed on the clock. For a same event, the CPU time may be either smaller or greater than the wall clock time depending on the number of threads of execution and the number of processors.

Meaning of some abbreviations:

AbbreviationMeaning
f=...Value of the objective function
TOTime Out
MOMem. Out (out of memory)

Meaning of the different colors:

ColorMeaning
textthe solver cannot handle this instance
textthe solver gave no answer
textthe solver could give an answer (SAT)
textthe solver gave a definitive answer (OPTIMUM FOUND or UNSAT)
textthe solver performed better than the other ones on that instance (complete solvers point of view)
textthe solver performed better than the other ones on that instance (incomplete solvers point of view)
textthe solver was ended by a signal or other problem
textthe solver gave an incomplete answer
textthe solver gave a wrong answer

For better readability, you may choose to hide some solvers:
bsolo 3.0.16
bsolo 3.0.17
minisat+ 1.14
oree 0.1.2 alpha
sat4jPseudoCP 2007-03-23
sat4jPseudoCPClause 2007-03-23
SAT4JPseudoResolution 2007-03-23

Bench nameBest results
on this
instance
bsolo
3.0.16
bsolo
3.0.17
minisat+
1.14
oree
0.1.2 alpha
sat4jPseudoCP
2007-03-23
sat4jPseudoCPClause
2007-03-23
SAT4JPseudoResolution
2007-03-23
normalized-PB06/OPT-MEDINT/web/
www.ps.uni-sb.de/~walser/benchmarks/
course-ass/normalized-ws97-3.opb
SAT
f=3063
TT=1800.32
T1=1348.27
? (MO)

TT=10.8

? (MO)

TT=11.741

? (TO)

TT=1800.05

SAT (TO)
f=72245
TT=1800.26
T1=1737.57
SAT (TO)
f=3065
TT=1800.33
T1=175.2
SAT (TO)
f=3063
TT=1800.32
T1=1348.27
SAT (TO)
f=11063
TT=1800.24
T1=3.82

Some statistics...

bsolo
3.0.16
bsolo
3.0.17
minisat+
1.14
oree
0.1.2 alpha
sat4jPseudoCP
2007-03-23
sat4jPseudoCPClause
2007-03-23
SAT4JPseudoResolution
2007-03-23
Number of times the solver is able to give the best known answer0000010
Number of times the solver is able to give the best known answer from an incomplete solver point of view (i.e. without considering optimality proof)0000010
Number of times the solver is the best solver from a complete solver point of view (i.e. best known answer and best TT time)0000010
Number of times the solver is the best solver from an incomplete solver point of view (i.e. best known answer and best T1 time)0000010