petsc-3.13.6 2020-09-29
VecAYPX
Computes y = x + beta y.
Synopsis
#include "petscvec.h"
PetscErrorCode VecAYPX(Vec y,PetscScalar beta,Vec x)
Logically Collective on Vec
Input Parameters
| beta | - the scalar
|
| x, y | - the vectors
|
Output Parameter
y -output vector
Notes
x and y MUST be different vectors
The implementation is optimized for beta of -1.0, 0.0, and 1.0
See Also
VecMAXPY(), VecWAXPY(), VecAXPY(), VecAXPBYPCZ(), VecAXPBY()
Level
intermediate
Location
src/vec/vec/interface/rvector.c
Examples
src/vec/vec/tutorials/ex1.c.html
src/vec/vec/tutorials/ex1f.F90.html
src/vec/vec/tutorials/ex1f90.F90.html
src/vec/vec/tutorials/ex20f90.F90.html
src/ksp/ksp/tutorials/ex74.c.html
src/ksp/ksp/tutorials/ex100.c.html
src/ksp/ksp/tutorials/ex14f.F90.html
src/ksp/ksp/tutorials/ex100f.F90.html
src/ts/tutorials/ex3.c.html
src/ts/tutorials/ex8.c.html
src/ts/tutorials/ex9.c.html
Implementations
VecAYPX_Nest in src/vec/vec/impls/nest/vecnest.c
VecAYPX_Node in src/vec/vec/impls/node/vecnode.c
VecAYPX_Seq in src/vec/vec/impls/seq/dvec2.c
VecAYPX_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda2.cu
VecAYPX_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