MatStructure#

Indicates if two matrices have the same nonzero structure

Synopsis#

Values#

  • 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

See Also#

Matrices, Mat, MatCopy(), MatAXPY(), MatAYPX()

Level#

beginner

Location#

include/petscmat.h

Examples#

src/ksp/ksp/tutorials/ex76.c

Examples#

src/ksp/ksp/tutorials/ex76.c


Index of all Mat routines
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Index of all manual pages