petsc-3.6.0 2015-06-09
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MatDuplicate

Duplicates a matrix including the non-zero structure.

Synopsis

#include "petscmat.h" 
PetscErrorCode  MatDuplicate(Mat mat,MatDuplicateOption op,Mat *M)
Collective on Mat

Input Parameters

mat - the matrix
op - either MAT_DO_NOT_COPY_VALUES or MAT_COPY_VALUES, cause it to copy the numerical values in the matrix MAT_SHARE_NONZERO_PATTERN to share the nonzero patterns with the previous matrix and not copy them.

Output Parameter

M -pointer to place new matrix

Notes: You cannot change the nonzero pattern for the parent or child matrix if you use MAT_SHARE_NONZERO_PATTERN.

See Also

MatCopy(), MatConvert()

Level:intermediate
Location:
src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/mat/examples/tutorials/ex9.c.html
src/ksp/ksp/examples/tutorials/ex5.c.html
src/ksp/ksp/examples/tutorials/ex58.c.html
src/tao/pde_constrained/examples/tutorials/elliptic.c.html
src/tao/pde_constrained/examples/tutorials/parabolic.c.html
src/tao/pde_constrained/examples/tutorials/hyperbolic.c.html