MatAXPY#
Computes Y = a*X + Y.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatAXPY(Mat Y, PetscScalar a, Mat X, MatStructure str)
Logically Collective
Input Parameters#
a - the scalar multiplier
X - the first matrix
Y - the second matrix
str - either
SAME_NONZERO_PATTERN,DIFFERENT_NONZERO_PATTERN,UNKNOWN_NONZERO_PATTERN, orSUBSET_NONZERO_PATTERN(nonzeros ofXis a subset ofY’s)
See Also#
Level#
intermediate
Location#
Examples#
src/ksp/ksp/tutorials/ex76.c
src/ksp/ksp/tutorials/ex21.c
src/ksp/ksp/tutorials/ex29.c
src/ksp/pc/tutorials/ex4.c
src/ksp/ksp/tutorials/ex79.c
src/ksp/ksp/tutorials/ex34.c
src/ksp/ksp/tutorials/ex19.c
src/ts/tutorials/ex50.c
src/tao/pde_constrained/tutorials/hyperbolic.c
src/tao/tutorials/ex4.c
Implementations#
MatAXPY_MPIAIJ() in src/mat/impls/aij/mpi/mpiaij.c
MatAXPY_SeqAIJ() in src/mat/impls/aij/seq/aij.c
MatAXPY_SeqAIJKokkos() in src/mat/impls/aij/seq/kokkos/aijkok.kokkos.cxx
MatAXPY_SeqAIJCUSPARSE() in src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu
MatAXPY_SeqAIJHIPSPARSE() in src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.c
MatAXPY_MPIBAIJ() in src/mat/impls/baij/mpi/mpibaij.c
MatAXPY_SeqBAIJ() in src/mat/impls/baij/seq/baij.c
MatAXPY_SeqBAIJMKL() in src/mat/impls/baij/seq/baijmkl/baijmkl.c
MatAXPY_ConstantDiagonal() in src/mat/impls/cdiagonal/cdiagonal.c
MatAXPY_MPIDense() in src/mat/impls/dense/mpi/mpidense.c
MatAXPY_SeqDense() in src/mat/impls/dense/seq/dense.c
MatAXPY_Diagonal() in src/mat/impls/diagonal/diagonal.c
MatAXPY_Elemental() in src/mat/impls/elemental/matelem.cxx
MatAXPY_HYPRE() in src/mat/impls/hypre/mhypre.c
MatAXPY_IS() in src/mat/impls/is/matis.c
MatAXPY_Nest() in src/mat/impls/nest/matnest.c
MatAXPY_MPISBAIJ() in src/mat/impls/sbaij/mpi/mpisbaij.c
MatAXPY_SeqSBAIJ() in src/mat/impls/sbaij/seq/sbaij.c
MatAXPY_ScaLAPACK() in src/mat/impls/scalapack/matscalapack.c
MatAXPY_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