Do not use nested dissection by default. #550
Merged
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By default, CHOLMOD will automatically try to use nested dissection for larger matrices as discussed in #548. This can be slow and confusing for users and we do not want to use it by default.
Provide a named parameter
nested_dissection
tosymbolic()
to allow the use of nested dissection.Also merge the solvers docs in the main SparseArrays docs.
Fixes #548