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Control volume renumbering for GMRES

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Old   October 26, 2009, 06:33
Default Control volume renumbering for GMRES
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Dear friends:
I am working on the unstructured cartesian grid, the algebraic equations was solve by the GMRES method, but the matrix was not renumbered.
could you please tell me which alogrithm should i use to renumber the unsturectured grid system so as to improve the GMRES efficiency.
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Old   October 26, 2009, 07:37
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See

http://en.wikipedia.org/wiki/Cuthill–McKee_algorithm
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