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ID Category Severity Reproducibility Date Submitted Last Update
0000994 [ALGLIB] Optimization feature have not tried 2023-10-29 23:57 2023-10-29 23:57
Reporter SergeyB View Status public  
Assigned To SergeyB
Priority normal Resolution implemented  
Status resolved   Product Version
Summary 0000994: IMPLEMENTED: some NLP solvers can now recover from infinite/NAN target values
Description Prior to ALGLIB 4.01, all optimizers stopped as soon as user callback returned infinite/NAN values in target/constraints vector or their Jacobian.

Now some ALGLIB solvers (SQP, DFO-LSA, 2PS) can recover from infinite values by reducing a trust radius. Upon successful recovery they continue optimization and add +800 to their completion code after return. If no successful recovery was possible (trust radius was decreased below lower bound), -8 completion code (critical error) is returned.
Additional Information
Programming language Unspecified
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- Issue History
Date Modified Username Field Change
2023-10-29 23:57 SergeyB New Issue
2023-10-29 23:57 SergeyB Status new => assigned
2023-10-29 23:57 SergeyB Assigned To => SergeyB
2023-10-29 23:57 SergeyB Programming language => Unspecified
2023-10-29 23:57 SergeyB Status assigned => resolved
2023-10-29 23:57 SergeyB Fixed in Version => 4.01.0
2023-10-29 23:57 SergeyB Resolution open => implemented

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