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Add extra (useless) binary variable in SOS1 (Cbc's bug) #123

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joaquimg opened this issue Jun 15, 2021 · 4 comments
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Add extra (useless) binary variable in SOS1 (Cbc's bug) #123

joaquimg opened this issue Jun 15, 2021 · 4 comments
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joaquimg commented Jun 15, 2021 •
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see #121
@joaquimg joaquimg added the question Further information is requested label Jun 15, 2021
@odow odow self-assigned this Jun 15, 2021
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odow commented Jun 15, 2021

We should fix this at the Cbc level. Working on it now.

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odow commented Jun 15, 2021

Hmm. This might actually take a new release of Cbc. It assumes that all variables in the SOS are binary.

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If all variable must be binaries it won't work.
The SOS formulation is used because it requires no bounds.
Otherwise it is fortuny amat

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This seems identical to: jump-dev/Cbc.jl#151
Can we close this one in favor of the Cbc.jl one?

@odow odow closed this as completed Jun 27, 2021
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