petsc-3.10.5 2019-03-28
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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