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warning message in Knapsack custom model test #541

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guimarqu opened this issue Jun 12, 2021 · 1 comment · Fixed by #546
Closed

warning message in Knapsack custom model test #541

guimarqu opened this issue Jun 12, 2021 · 1 comment · Fixed by #546
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@laradicp
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needs investigation The issue needs investigation because we don't know if it's a bug and if it comes from Coluna.

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@guimarqu
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There is this warning from the KnapsackLIb :

┌ Warning: Negative weights or profits are not allowed, leading to an undefined behavior.
└ @ KnapsackLib ~/.julia/packages/KnapsackLib/hfonQ/src/Data.jl:38
@guimarqu guimarqu added the needs investigation The issue needs investigation because we don't know if it's a bug and if it comes from Coluna. label Jun 12, 2021
@laradicp
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I hadn't seen these warnings. It's weird that it works. Even without multiplying costs by -1, we have negative ones, right?

@laradicp laradicp mentioned this issue Jun 16, 2021
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@laradicp laradicp

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needs investigation The issue needs investigation because we don't know if it's a bug and if it comes from Coluna.
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Remove negative costs atoptima/Coluna.jl
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@guimarqu @laradicp