int MatGetReordering(Mat mat,MatReorderingType type,IS *rperm,IS *cperm)
ORDER_NATURAL - Natural
ORDER_ND - Nested Dissection
ORDER_1WD - One-way Dissection
ORDER_RCM - Reverse Cuthill-McKee
ORDER_QMD - Quotient Minimum Degree
Collective on Mat
-mat_order natural, -mat_order nd, -mat_order 1wd,
-mat_order rcm, -mat_order qmd
The user can define additional orderings; see MatReorderingRegister().
Location: src/mat/impls/order/sorder.c
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