GCG 3.6.0

New features:

MSVC support

New/changed parameters:

New parameter 'detection/scores/selected' to select the score that should be used to sort the decompositions
Removed parameter 'detection/score/scoretype'
Moved parameter 'detection/score/strong_detection/dualvalrandommethod' to 'detection/scores/strong/dualvalrandommethod'
Moved parameter 'detection/score/strong_detection/coeffactororigvsrandom' to 'detection/scores/strong/coeffactororigvsrandom'
Moved parameter 'detection/score/strong_detection/timelimit' to 'detection/scores/strong/timelimit'

New/modified API functions:

New functions: 'GCGconshdlrDecompGetNConsClassifiers', 'GCGconshdlrDecompGetNVarClassifiers', 'GCGconshdlrDecompGetConsClassifiers', 'GCGconshdlrDecompGetVarClassifiers'
Add parameter 'DEC_CONSCLASSIFIER* consclassifier' to 'DEC_DECL_CONSCLASSIFY'
Add paramater 'DEC_VARCLASSIFIER* varclassifier' to 'DEC_DECL_VARCLASSIFY'
Added function 'DECsetCurrentScore'
Added function 'DECgetCurrentScoreShortname'
Added function 'DECgetCurrentScore'
Added function 'GCGincludeScore'
Added function 'GCGfindScore'
Added function 'GCGgetScores'
Added function 'GCGgetNScores'
Added function 'GCGscoreGetData'
Added function 'GCGscoreSetData'
Added function 'GCGscoreGetName'
Added function 'GCGscoreGetShortname'
Added function 'GCGscoreGetDesc'
Added function 'GCGincludeScoreBender'
Added function 'GCGincludeScoreBorder'
Added function 'GCGincludeScoreClassic'
Added function 'GCGincludeScoreFawh'
Added function 'GCGincludeScoreForswh'
Added function 'GCGincludeScoreMaxwhite'
Added function 'GCGincludeScoreSpfawh'
Added function 'GCGincludeScoreSpfwh'
Added function 'GCGincludeScoreStrongDecomp'

Deleted API functions:

Deleted function 'GCGconshdlrDecompGetScoretype'
Deleted function 'GCGconshdlrDecompCalcBendersScore'
Deleted function 'GCGconshdlrDecompCalcBorderAreaScore'
Deleted function 'GCGconshdlrDecompCalcClassicScore'
Deleted function 'GCGconshdlrDecompCalcMaxForeseeingWhiteAggScore'
Deleted function 'GCGconshdlrDecompCalcMaxForseeingWhiteScore'
Deleted function 'GCGconshdlrDecompCalcMaxWhiteScore'
Deleted function 'GCGconshdlrDecompCalcSetPartForseeingWhiteScore'
Deleted function 'GCGconshdlrDecompCalcSetPartForWhiteAggScore'
Deleted function 'GCGconshdlrDecompCalcStrongDecompositionScore'

Code cleanup:

Refactored scores

GCG 3.5.2

Bug fixes

fix errors in symmetry detection
fix segmentation faults
add missing headers to CMake file

GCG 3.5.2

Bug fixes

fix compile with new bliss version (0.77)
fix Makefiles recompile if STATISTICS flag was changed
fix minor bugs in the cmpres.awk script, updating it to the SCIP version
fix memory allocation of name and description of constraint and variable classifiers
fix handling of variables added after the problem was transformed

Build system

Bliss is enabled by default and the version provided by SCIP is compiled (CMake and Makefile)

GCG 3.5.0

New features:

New website documentation
Added several strong branching based branching candidate selection heuristics: strong branching with column generation, strong branching without column generation, hybrid strong/pseudocost branching, reliability branching, hierarchical strong branching, hybrid hierarchical strong/pseudocost branching, hierarchical reliability branching (primarily for original variable branching and Ryan-Foster branching).
New detector neighborhoodmaster: calculating cons-cons adjacency (if not already done), sorting according size of neighborhood. Searching two consecutive constraints with largest size difference (according neighborhood size) in sorted constraints. All constraints having a larger neighborhood than the second one are assigned to the master.
On reading an incomplete decomposition, the program will not necessarily assign all open elements to the master problem but detect the rest of the structure.
Use the user's default application to open pdf files

New/changed parameters:

New parameters 'branching/orig/usestrong' and 'branching/ryanfoster/usestrong' to enable strong branching for original variable branching and Ryan-Foster branching
New parameters 'branching/bpstrong/...' to alter strong branching behavior
New parameter 'detection/enabled' for easier en-/disabling of the detection
New Parameter 'detection/postprocess' enables the postprocessing of decompositions
Removed paramaters 'detection/detectors/<name>/legacymode'
Removed parameter 'detection/conssadjcalculated'
Removed parameter 'detection/legacymode/onlylegacymode'
Removed parameter 'detection/legacymode/enabled'
Removed parameter 'detection/legacymode/stairlinkingheur'
Removed parameter 'visual/report/showtype'
Removed parameter 'constraints/decomp/createbasicdecomp'
Removed parameters 'detection/detectors/<name>/origenabled'
Moved parameters 'detection/consclassifier/<name>/enabled' to 'detection/classification/consclassifier/<name>/enabled'
Removed parameters 'detection/consclassifier/<name>/origenabled'
Moved parameters 'detection/varclassifier/<name>/enabled' to 'detection/classification/varclassifier/<name>/enabled'
Removed parameters 'detection/varclassifier/<name>/origenabled'
Moved parameter 'detection/allowclassifierduplicates/enabled' to 'detection/classification/allowduplicates'
Moved parameter 'detection/maxnclassesfornblockcandidates' to 'detection/blocknrcandidates/maxnclasses'
Moved parameter 'detection/addblocknr' to 'set/detection/blocknrcandidates/addblocknr'
Moved parameter 'detection/maxnclassesperclassifier' to 'detection/classification/maxnclassesperpartition'
Moved parameter 'detection/maxnclassesperclassifierforlargeprobs' to 'detection/classification/maxnclassesperpartitionforlargeprobs'
Moved parameter 'detection/strong_detection/dualvalrandommethod' to 'detection/score/strong_detection/dualvalrandommethod'
Moved parameter 'detection/strong_detection/coeffactororigvsrandom' to 'detection/score/strong_detection/coeffactororigvsrandom'
Moved parameter 'detection/scoretype' to 'detection/score/scoretype'

New/changed menu commands:

Removed 'toolbox' feature from 'explore' menu
Removed command 'toolbox'
Removed command 'write/miplib2017features'
Removed command 'write/miplib2017plotsanddecs'
Removed command 'write/miplib2017shortbasefeatures'
Removed command 'write/miplib2017featurefilepath'
Removed command 'write/miplib2017matrixfilepath'
Removed command 'write/miplib2017decompfilepath'
Removed command 'write alloriginaldecompositions'
Removed command 'write allpresolveddecompositions'
Renamed command 'write reportdecompositions' to 'write report'
Renamed command 'write selecteddecompositions' to 'write selected'

Visualization and testing:

check/compareversions.sh runs tests on several git versions, summarizes performace results

Code cleanup:

Cleaned up 'explore' menu
Refactored detection loop
Removed legacymode, including detectors 'connected', 'staircase', 'random', 'cutpacking', 'colors', 'mcl'
Renamed class Seeed to PARTIALDECOMP
Renamed class Seeedpool to DETPROBDATA
Renamed SEEED_WRAPPER to PARTIALDECOMP_WRAPPER
Renamed {Index,Cons,Var}Classifier to {Index,Cons,Var}Partition
Refactored dialog handler
Moved GCG version define to 'def.h', moved 'GCGprintVersion' to 'gcg_general.h/c'

New/modified API functions:

New functions: 'GCGtransformProb', 'GCGpresolve', 'GCGdetect', 'GCGsolve'
Renamed 'GCGgetGap' to 'GCGgetVarGap' and 'GCGsetGap' to 'GCGsetVarGap'
New functions: 'GCGgetDualbound', 'GCGgetPrimalbound', 'GCGgetGap'

Bug fixes

Fixed function 'ObjPricerGcg::computeCurrentDegeneracy'
Relaxator: Do not construct and flush the LP if it is already constructed