Add reporting of SCIP node count to solver results #3691
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3691 +/- ##
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+ Coverage 89.19% 89.21% +0.01%
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Files 892 892
Lines 103015 103215 +200
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+ Hits 91888 92081 +193
- Misses 11127 11134 +7
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mrmundt
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Aug 12, 2025
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emma58
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Aug 19, 2025
| @@ -255,6 +255,7 @@ def _postsolve(self): | |||
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| results.solver.time = log_dict['solving_time'] | |||
| results.solver.gap = log_dict['gap'] | |||
| results.solver.nodes = log_dict['solving_nodes'] | |||
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I think results.solver.node_count might be a clearer name, but I don't have super strong feelings about it.
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Thanks for the suggestion! I've made this change.
blnicho
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Aug 21, 2025
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Fixes
N/A
Summary/Motivation:
When running
pyomo solvewith the SCIP solver, the serialized results files don't show the number of nodes explored. The SCIPAMPL handler parses the number of nodes in the SCIP solver log and returns it fromread_scip_log, but not in the solver results returned from_postsolve. Including it would make it easier to assess changes in tree size when benchmarking.Changes proposed in this PR:
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