MatStructure#
Indicates if two matrices have the same nonzero structure
Synopsis#
SAME_NONZERO_PATTERN - the two matrices have identical nonzero patterns
DIFFERENT_NONZERO_PATTERN - the two matrices may have different nonzero patterns
SUBSET_NONZERO_PATTERN - the nonzero pattern of the second matrix is a subset of the nonzero pattern of the first matrix
UNKNOWN_NONZERO_PATTERN - there is no known relationship between the nonzero patterns. In this case the implementations may try to detect a relationship to optimize the operation
Developer Notes#
Any additions/changes here MUST also be made in src/mat/f90-mod/petscmat.h
See Also#
Level#
beginner
Location#
Examples#
src/mat/tutorials/ex9.c.html
src/ksp/ksp/tutorials/ex21.c.html
src/ksp/ksp/tutorials/ex29.c.html
src/ksp/ksp/tutorials/ex34.c.html
src/ksp/ksp/tutorials/ex76.c.html
src/ksp/ksp/tutorials/ex77.c.html
src/ksp/ksp/tutorials/ex77f.F90.html
src/ksp/ksp/tutorials/ex79.c.html
src/ksp/ksp/tutorials/ex9.c.html
src/ts/tutorials/ex3.c.html
src/ts/tutorials/ex50.c.html
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