MatMultAdd#

Computes v3 = v2 + A * v1.

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatMultAdd(Mat mat, Vec v1, Vec v2, Vec v3)

Neighbor-wise Collective

Input Parameters#

  • mat - the matrix

  • v1, v2 - the vectors

Output Parameters#

  • v3 - the result

Note#

The vectors v1 and v3 cannot be the same. I.e., one cannot call MatMultAdd(A,v1,v2,v1).

See Also#

Mat, MatMultTranspose(), MatMult(), MatMultTransposeAdd()

Level#

beginner

Location#

src/mat/interface/matrix.c

Examples#

src/mat/tutorials/ex2.c.html
src/mat/tutorials/ex9.c.html
src/ksp/ksp/tutorials/ex74.c.html
src/snes/tutorials/ex70.c.html
src/snes/tutorials/ex73f90t.F90.html
src/ts/tutorials/ex50.c.html
src/tao/unconstrained/tutorials/burgers_spectral.c.html

Implementations#

MatMultAdd_MPIAIJKokkos in src/mat/impls/aij/mpi/kokkos/mpiaijkok.kokkos.cxx
MatMultAdd_MPIAIJ in src/mat/impls/aij/mpi/mpiaij.c
MatMultAdd_MPIAIJCUSPARSE in src/mat/impls/aij/mpi/mpicusparse/mpiaijcusparse.cu
MatMultAdd_MPIAIJHIPSPARSE in src/mat/impls/aij/mpi/mpihipsparse/mpiaijhipsparse.hip.c
MatMultAdd_SeqAIJ in src/mat/impls/aij/seq/aij.c
MatMultAdd_SeqAIJMKL in src/mat/impls/aij/seq/aijmkl/aijmkl.c
MatMultAdd_SeqAIJPERM in src/mat/impls/aij/seq/aijperm/aijperm.c
MatMultAdd_SeqAIJSELL in src/mat/impls/aij/seq/aijsell/aijsell.c
MatMultAdd_SeqAIJKokkos in src/mat/impls/aij/seq/kokkos/aijkok.kokkos.cxx
MatMultAdd_SeqAIJCUSPARSE in src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu
MatMultAdd_SeqAIJHIPSPARSE in src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.c
MatMultAdd_SeqAIJViennaCL in src/mat/impls/aij/seq/seqviennacl/aijviennacl.cxx
MatMultAdd_MPIBAIJ in src/mat/impls/baij/mpi/mpibaij.c
MatMultAdd_BlockMat in src/mat/impls/blockmat/seq/blockmat.c
MatMultAdd_ConstantDiagonal in src/mat/impls/cdiagonal/cdiagonal.c
MatMultAdd_Composite in src/mat/impls/composite/mcomposite.c
MatMultAdd_MPIDense in src/mat/impls/dense/mpi/mpidense.c
MatMultAdd_SeqDenseCUDA in src/mat/impls/dense/seq/cuda/densecuda.cu
MatMultAdd_SeqDense in src/mat/impls/dense/seq/dense.c
MatMultAdd_SeqDenseHIP in src/mat/impls/dense/seq/hip/densehip.hip.c
MatMultAdd_Elemental in src/mat/impls/elemental/matelem.cxx
MatMultAdd_H2OPUS in src/mat/impls/h2opus/cuda/math2opus.cu
MatMultAdd_Htool in src/mat/impls/htool/htool.cxx
MatMultAdd_HYPRE in src/mat/impls/hypre/mhypre.c
MatMultAdd_IS in src/mat/impls/is/matis.c
MatMultAdd_SeqKAIJ in src/mat/impls/kaij/kaij.c
MatMultAdd_MPIKAIJ in src/mat/impls/kaij/kaij.c
MatMultAdd_Nest in src/mat/impls/nest/matnest.c
MatMultAdd_Normal in src/mat/impls/normal/normm.c
MatMultAdd_MPISBAIJ in src/mat/impls/sbaij/mpi/mpisbaij.c
MatMultAdd_ScaLAPACK in src/mat/impls/scalapack/matscalapack.c
MatMultAdd_Scatter in src/mat/impls/scatter/mscatter.c
MatMultAdd_MPISELL in src/mat/impls/sell/mpi/mpisell.c
MatMultAdd_SeqSELL in src/mat/impls/sell/seq/sell.c
MatMultAdd_Shell in src/mat/impls/shell/shell.c
MatMultAdd_SubMatrix in src/mat/impls/submat/submat.c
MatMultAdd_HT in src/mat/impls/transpose/htransm.c
MatMultAdd_Transpose in src/mat/impls/transpose/transm.c


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