Comments (2)
Hello @brmanuel!
It seems that you have been indirectly introduced to the SCIP's solving stages :)
Before starting the solving process, SCIP transforms the problem into an easier form to work with. That involves creating transformed variables and constraints.
So, here the reason why SCIPgetDualsolLinear
returns zeros, is that you pass the original constraints to it which are not part of the transformed problem so they are inactive hence have zero values.
The correct one to use here is SCIPgetDualSolVal
as it does in fact call SCIPgetDualsolLinear
but calls it on the corresponding transformed constraint.
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Hi @mmghannam
Thank you very much for your answer here and in the related issue!
This clears up my confusion.
from scip.
Related Issues (20)
- Assertion failed at the end of a solve HOT 3
- Data race in interrupt.c HOT 4
- ImportError: libscip.so.8.0: cannot open shared object file: No such file or directory HOT 1
- Suboptimal MIP solution reported as optimal HOT 2
- Can you build binary package for a more recent liunx distribution? HOT 3
- SegFault after compiling HOT 5
- Coloring application Branching Rule contradictory code HOT 7
- 2 tests fail HOT 1
- lot of tests from viprchk and «ctest -R MIPEX» failed on «exact-rational» branch HOT 9
- RFE: dynamic line length HOT 6
- question: how not to use nlpi_ipopt which depend on proprietray libhsl.so? HOT 3
- Interesting paper HOT 1
- `RelWithDebInfo` build is still asserting. HOT 4
- question: compiled with GMP=on, how to ensure GMP is used with CVXPY? HOT 3
- Difference in the objective value of a MIP in version 8.1.0 HOT 3
- What are the uses of nauty in SCIP? HOT 4
- System.AccessViolationException when trying to delete a restriction after LPError HOT 1
- Highs interface, option values function call deprecated
- Adding constraint improves objective. HOT 4
- Request: Publish debs for aarch64
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from scip.