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Investigate if rewriting to `cumulatives` is good for zero-length tasks when posting MiniZinc constraints `gecode_cumulatives` #82

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zayenz opened this issue Aug 28, 2020 · 0 comments

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@zayenz zayenz commented Aug 28, 2020

In the registry function for gecode_cumulatives the case where the tasks may have zero-length duration and the bound is not assigned is currently decomposed into basic constraints.

An alternative re-write strategy would be to rewrite to cumulatives using multiple machines, where zero-length tasks are on a different machine with an "unlimited" bound.

If #81 has been implemented, this should be tested in the new MiniZinc rewriting, otherwise in the current C++ code.

@zayenz zayenz changed the title Investigate if rewriting to `cumulatives` is good for zero-length tasks when posting MinIZinc constraints `gecode_cumulatives` Investigate if rewriting to `cumulatives` is good for zero-length tasks when posting MiniZinc constraints `gecode_cumulatives` Aug 28, 2020
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