petsc-master 2018-05-21
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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

Developer Note: alpha = 1 or gamma = 1 or gamma = 0.0 are handled as special cases

See Also

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

Level

intermediate

Location

src/vec/vec/interface/rvector.c

Implementations

VecAXPBYPCZ_Node in src/vec/vec/impls/node/vecnode.c
VecAXPBYPCZ_Seq in src/vec/vec/impls/seq/bvec1.c
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