[petsc-users] Variable ordering in PC FieldSplit

[subramanya sadasiva]

I have a small question about the use of PC field split, does it expect variables to be arranged in a particular fashion? Should it be variable major (all degrees of freedom corresponding to the first followed by all degrees of freedom corresponding to the next) or node major ( all degrees of freedom corresponding to each node - with a sub block structure . Is there some way of switching between the two ?Thanks, 
Subramanya Sadasiva  		 	   		  
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