User Manual

Complete manual for QECTOR Decoder v3: installation, license-token configuration, decoder selection by code family, optional ecosystem integration, local measurements, and troubleshooting.

DecoderTarget codeSpeedAccuracyTier
Blossom (MWPM)Graphlike CSS / surfaceWorkload-dependentMinimum-weight matching objectiveStable
Belief-MatchingCorrelated-noise researchWorkload-dependentEvaluate locallyResearch
BP-OSDqLDPC, LDPCWorkload-dependentEvaluate locallyResearch
Union-FindLarge surfaceNear-linear O(N)ApproximateStable
GPU BatchSupported batch workloadsRuntime-dependentValidate locallyWorkload-sensitive
Hybrid / CascadeDegenerate, mixedIterativeHighResearch
GNN Belief MatcherSurface, researchSlow (offline)Neural-enhancedResearch