VecAXPY#
Computes y = alpha x + y
.
Synopsis#
#include "petscvec.h"
PetscErrorCode VecAXPY(Vec y, PetscScalar alpha, Vec x)
Logically Collective
Input Parameters#
alpha - the scalar
x - vector scale by
alpha
y - vector accumulated into
Output Parameter#
y - output vector
Notes#
This routine is optimized for alpha of 0.0, otherwise it calls the BLAS routine
See Also#
Vectors and Parallel Data, Vec
, VecAYPX()
, VecMAXPY()
, VecWAXPY()
, VecAXPBYPCZ()
, VecAXPBY()
Level#
intermediate
Location#
Examples#
src/dm/impls/stag/tutorials/ex1.c
src/dm/impls/stag/tutorials/ex2.c
src/dm/impls/stag/tutorials/ex3.c
src/dm/tutorials/ex10.c
src/dm/tutorials/ex15.c
src/ksp/ksp/tutorials/bench_kspsolve.c
src/ksp/ksp/tutorials/ex1.c
src/ksp/ksp/tutorials/ex11.c
src/ksp/ksp/tutorials/ex11f.F90
src/ksp/ksp/tutorials/ex12.c
src/ksp/ksp/tutorials/ex15.c
Implementations#
VecAXPY_Nest in src/vec/vec/impls/nest/vecnest.c
VecAXPY_Seq in src/vec/vec/impls/seq/bvec1.c
VecAXPY_SeqKokkos in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecAXPY_SeqViennaCL in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages