Merge branch 'stefanozampini/tr-api' into 'main'

API for SNESNewtonTR tolerances and parameters

See merge request petsc/petsc!7689

SNESNEWTONTR: use cauchy point with objective function minimization only

stol default for TR should be 0

Merge branch 'stefanozampini/snes-lmvm' into 'main'

Improve MATLMVM support in SNES

See merge request petsc/petsc!7030

SNESNEWTONTR: code improvements

support QN models

accepts Cauchy point if it is on the boundary

Enlarge trust region only if direction is on the boundary

Use previously estimated largest eigenval

SNESNEWTONTR: code improvements

support QN models

accepts Cauchy point if it is on the boundary

Enlarge trust region only if direction is on the boundary

Use previously estimated largest eigenvalue of hessian in minimum decrease

Customize trust region norm

Fix dogleg path computation

Update output files and add tests

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Merge branch 'stefanozampini/snes-kspcg' into 'main'

Updates on SNESNEWTONTR

See merge request petsc/petsc!6216

SNESNEWTONTR: stol should be zero, since we use the trust region parameter

Merge branch 'stefanozampini/snes' into 'main'

Improve Trust-Region support in SNES

See merge request petsc/petsc!6150

SNESNEWTONTR: add dogleg and Cauchy fallbacks from NTRDC

Merge branch 'jed/promote-examples-tests-tutorials' [petsc/petsc!2610]

* jed/promote-examples-tests-tutorials:
Promote examples/{tests,tutorials}/ to {tests,tutorials}/

Promote examples/{tests,tutorials}/ to {tests,tutorials}/

This shortens paths and improves consistency between test target names
and paths to the source and output files. Most of the work was
compl

Promote examples/{tests,tutorials}/ to {tests,tutorials}/

This shortens paths and improves consistency between test target names
and paths to the source and output files. Most of the work was
completed by this script, followed by mild cleanup of nonconforming
cases.

for makefile in `git ls-files 'src/*makefile'`; do
if rg -q 'DIRS.*\bexamples\b' $makefile; then
base=$(dirname $makefile)
dirs=$(cd $base/examples && ls -d tests tutorials 2>/dev/null | xargs echo)
perl -pi -e "s#^(DIRS.*)\bexamples\b#\1${dirs}#" $makefile
git rm $base/examples/makefile
for t in $dirs; do
git mv $base/examples/$t $base/
perl -pi -e "s#^(LOCDIR[[:space:]]*=).*#\1 $base/$t/#" $base/$t
done
fi
done

git grep -l -E -z 'examples/(tutorials|tests)' | xargs -0 perl -pi -e 's#examples/(tutorials|tests)#\1#g'
git checkout @ \
src/docs/website/documentation/changes/ \
src/benchmarks/results/

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