petsc-3.12.5 2020-03-29
VecAXPBY
Computes y = alpha x + beta y.
Synopsis
#include "petscvec.h"
PetscErrorCode VecAXPBY(Vec y,PetscScalar alpha,PetscScalar beta,Vec x)
Logically Collective on Vec
Input Parameters
| alpha,beta | - the scalars
|
| x, y | - the vectors
|
Output Parameter
y -output vector
Notes
x and y MUST be different vectors
The implementation is optimized for alpha and/or beta values of 0.0 and 1.0
See Also
VecAYPX(), VecMAXPY(), VecWAXPY(), VecAXPY(), VecAXPBYPCZ()
Level
intermediate
Location
src/vec/vec/interface/rvector.c
Implementations
VecAXPBY_Nest in src/vec/vec/impls/nest/vecnest.c
VecAXPBY_Node in src/vec/vec/impls/node/vecnode.c
VecAXPBY_Seq in src/vec/vec/impls/seq/bvec1.c
VecAXPBY_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda2.cu
VecAXPBY_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