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c59835d0
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| 17-Feb-2025 |
Satish Balay <balay@mcs.anl.gov> |
Merge branch 'jonas-heinzmann/fix-sneslinesearch-vi-directionalderivative' into 'main'
SNESLineSearch: fix computation of directional derivative in the case of the VI solvers
See merge request pets
Merge branch 'jonas-heinzmann/fix-sneslinesearch-vi-directionalderivative' into 'main'
SNESLineSearch: fix computation of directional derivative in the case of the VI solvers
See merge request petsc/petsc!8137
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d5def619
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| 17-Feb-2025 |
Jonas Heinzmann <jheinzmann@ethz.ch> |
SNESLineSearch: fix computation of directional derivative in the case of the VI solvers
The two line search algorithms bisection and critical point work with the directional derivative, assuming tha
SNESLineSearch: fix computation of directional derivative in the case of the VI solvers
The two line search algorithms bisection and critical point work with the directional derivative, assuming that F(x) = grad G(x).
However, when working with the variational inequality solvers, the constraints were not correctly considered when computing the directional derivative.
This commit introduces a new linesearch->ops->vidirderiv function which correctly considers the constraints (similar to linesearch->ops->viproject and linesearch->ops->vinorm).
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