MatCopy#
Copies a matrix to another matrix.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatCopy(Mat A, Mat B, MatStructure str)
Collective
Input Parameters#
A - the matrix
Output Parameter#
B - where the copy is put
Notes#
If you use SAME_NONZERO_PATTERN then the two matrices must have the same nonzero pattern or the routine will crash.
MatCopy() copies the matrix entries of a matrix to another existing
matrix (after first zeroing the second matrix). A related routine is
MatConvert(), which first creates a new matrix and then copies the data.
See Also#
Matrices, Mat, MatConvert(), MatDuplicate()
Level#
intermediate
Location#
Examples#
src/ksp/ksp/tutorials/ex79.c
src/tao/pde_constrained/tutorials/elliptic.c
src/tao/pde_constrained/tutorials/hyperbolic.c
src/tao/pde_constrained/tutorials/parabolic.c
src/tao/tutorials/ex4.c
src/tao/unconstrained/tutorials/burgers_spectral.c
src/tao/unconstrained/tutorials/spectraladjointassimilation.c
src/ts/tutorials/ex3.c
src/ts/tutorials/ex50.c
Implementations#
MatCopy_MPIAIJ in src/mat/impls/aij/mpi/mpiaij.c
MatCopy_SeqAIJ in src/mat/impls/aij/seq/aij.c
MatCopy_MPIBAIJ in src/mat/impls/baij/mpi/mpibaij.c
MatCopy_SeqBAIJ in src/mat/impls/baij/seq/baij.c
MatCopy_MPIDense in src/mat/impls/dense/mpi/mpidense.c
MatCopy_SeqDense in src/mat/impls/dense/seq/dense.c
MatCopy_Elemental in src/mat/impls/elemental/matelem.cxx
MatCopy_HYPRE in src/mat/impls/hypre/mhypre.c
MatCopy_IS in src/mat/impls/is/matis.c
MatCopy_Nest in src/mat/impls/nest/matnest.c
MatCopy_Normal in src/mat/impls/normal/normm.c
MatCopy_NormalHermitian in src/mat/impls/normal/normmh.c
MatCopy_MPISBAIJ in src/mat/impls/sbaij/mpi/mpisbaij.c
MatCopy_SeqSBAIJ in src/mat/impls/sbaij/seq/sbaij.c
MatCopy_ScaLAPACK in src/mat/impls/scalapack/matscalapack.c
MatCopy_MPISELL in src/mat/impls/sell/mpi/mpisell.c
MatCopy_SeqSELL in src/mat/impls/sell/seq/sell.c
MatCopy_Shell in src/mat/impls/shell/shell.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages