petsc-master 2014-11-21
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MatDuplicateOption

Indicates if a duplicated sparse matrix should have its numerical values copied over or just its nonzero structure.

Synopsis

typedef enum {MAT_DO_NOT_COPY_VALUES,MAT_COPY_VALUES,MAT_SHARE_NONZERO_PATTERN} MatDuplicateOption;

Any additions/changes here MUST also be made in include/finclude/petscmat.h

  MAT_SHARE_NONZERO_PATTERN - the i and j arrays in the new matrix will be shared with the original matrix
                              this also triggers the MAT_DO_NOT_COPY_VALUES option. This is used when you
                              have several matrices with the same nonzero pattern.

See Also

MatDuplicate()

Level:beginner
Location:
src/mat/../../include/petscmat.h
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/tao/pde_constrained/examples/tutorials/parabolic.c.html
src/tao/pde_constrained/examples/tutorials/hyperbolic.c.html