petsc-3.9.4 2018-09-11
VecMAXPY
Computes y = y + sum alpha[j] x[j]
Synopsis
#include "petscvec.h"
PetscErrorCode VecMAXPY(Vec y,PetscInt nv,const PetscScalar alpha[],Vec x[])
Logically Collective on Vec
Input Parameters
| nv | - number of scalars and x-vectors
|
| alpha | - array of scalars
|
| y | - one vector
|
| x | - array of vectors
|
Notes: y cannot be any of the x vectors
See Also
VecAXPY(), VecWAXPY(), VecAYPX()
Level
intermediate
Location
src/vec/vec/interface/rvector.c
Examples
src/vec/vec/examples/tutorials/ex1.c.html
src/vec/vec/examples/tutorials/ex1f.F90.html
src/vec/vec/examples/tutorials/ex1f90.F90.html
src/vec/vec/examples/tutorials/ex20f90.F90.html
Implementations
VecMAXPY_Nest in src/vec/vec/impls/nest/vecnest.c
VecMAXPY_Seq in src/vec/vec/impls/seq/dvec2.c
VecMAXPY_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda2.cu
VecMAXPY_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