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  • #1948

Closed
Open
Created Dec 07, 2020 by Vaggelis Papoutsis@vaggelispDeveloper

BUG: First extrapolated value of the merit function is computed wrongly

Summary

In an adjoint-based optimisation, if the step value (eta) is not set explicitly, it is computed after evaluating the directional derivative of the merit function, which, in turn, is computed wrongly, leading to an erroneous value of the extrapolated merit function value.

Affects only the first optimisation cycle, if line search is enabled, so the bug should appear rather rarely.

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