petsc-3.14.6 2021-03-30
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VecAXPBYPCZ

Computes z = alpha x + beta y + gamma z

Synopsis

#include "petscvec.h"   
PetscErrorCode  VecAXPBYPCZ(Vec z,PetscScalar alpha,PetscScalar beta,PetscScalar gamma,Vec x,Vec y)
Logically Collective on Vec

Input Parameters

alpha,beta, gamma - the scalars
x, y, z - the vectors

Output Parameter

z - output vector

Notes

x, y and z must be different vectors The implementation is optimized for alpha of 1.0 and gamma of 1.0 or 0.0

See Also

VecAYPX(), VecMAXPY(), VecWAXPY(), VecAXPY(), VecAXPBY()

Level

intermediate

Location

src/vec/vec/interface/rvector.c

Examples

src/tao/tutorials/ex4.c.html

Implementations

VecAXPBYPCZ_Nest in src/vec/vec/impls/nest/vecnest.c
VecAXPBYPCZ_Node in src/vec/vec/impls/node/vecnode.c
VecAXPBYPCZ_Seq in src/vec/vec/impls/seq/bvec1.c
VecAXPBYPCZ_SeqKokkos in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecAXPBYPCZ_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda2.cu
VecAXPBYPCZ_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