Qin Lu <[email protected]> writes: > Barry and Jed, > > Nice to know that! Is there a corresponding function call to set RCM?
$ ./ex2 -pc_factor_mat_ordering_type rcm -help | grep -A1 mat_ordering
-pc_factor_mat_ordering_type <natural>: Reordering to reduce nonzeros in
factored matrix (one of) natural nd 1wd rcm qmd rowlength wbm spectral
(PCFactorSetMatOrderingType)
Looks like you should check out
http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCFactorSetMatOrderingType.html
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