Merge branch 'barry/2024-02-20/fix-petscviewergetsubcomm' into 'main'

Document that PetscViewerGetSubViewer() is collective on the outer viewer and fix bugs.

See merge request petsc/petsc!7309

Document that PetscViewerGetSubViewer() is collective on the outer viewer and fix bugs.

Reported-by: Pierre Jolivet

Merge branch 'barry/2023-10-19/fix-pcview-redundant/release' into 'main'

Fix bugs in handling PetscViewerGetSubViewer() and tabing in ASCII viewers

See merge request petsc/petsc!6948

Fix src/mat/tests/ex183.c to use PetscViewerGetSubViewer() correctly

Commit-type: bug-fix

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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