Enhanced Bin Packing propagator #202
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Hello,
This patch implements a stronger pruning technique for the BinPacking constraint. It leverages tighter lower bounds based on Dual-Feasible Functions. This approach was presented at CP 2024 in the paper CP for Bin Packing with Multi-Core and GPUs.
There might be a need for some polishing and testing, but I think the benefits are worth the effort. I attached a simple model for testing.
Cheers
bpp.mzn.txt
N2W1B2R5.dzn.txt