Fix deletion of constrained variables for CachingOptimizer #905
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Codecov Report
@@ Coverage Diff @@
## master #905 +/- ##
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+ Coverage 95.12% 95.15% +0.02%
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Files 81 81
Lines 8592 8662 +70
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+ Hits 8173 8242 +69
- Misses 419 420 +1
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|
odow
approved these changes
Sep 28, 2019
| @test !MOI.is_valid(model, cv) | ||
| v, cv = MOI.add_constrained_variables(model, MOI.SecondOrderCone(3)) | ||
| @test MOI.get(model, MOI.NumberOfVariables()) == 3 | ||
| @test_throws MOI.DeleteNotAllowed MOI.delete(model, v[1]) |
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Hmmm.... I hadn't thought of this case. I guess it's reasonable.
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Passing existing tests with bridged variables put a lot of stress on the deletion API so as part of adding the variable bridges, we clarified what should be done in these corner cases. The relevant PR is #793
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To delete constrained variables, you need to delete the whole vector of variables at once if the set dimension cannot change like
MOI.SecondOrderCone. For this reason, it is important forCachingOptimizerto implement the deletion of vector of variables instead of relying on the fallback functions which deletes variable one by one otherwise you get the error: