VecMAXPY

Computes y = y + sum alpha[i] x[i]

Synopsis

#include "petscvec.h"   
PetscErrorCode VecMAXPY(Vec y, PetscInt nv, const PetscScalar alpha[], Vec x[])

Logically Collective

Input Parameters

• nv - number of scalars and x-vectors

• alpha - array of scalars

• y - one vector

• x - array of vectors

Note

y cannot be any of the x vectors

See Also

Vectors and Parallel Data, Vec, VecMAXPBY(),VecAYPX(), VecWAXPY(), VecAXPY(), VecAXPBYPCZ(), VecAXPBY()

Level

intermediate

Location

src/vec/vec/interface/rvector.c

Examples

src/vec/vec/tutorials/ex1.c

Implementations

VecMAXPY_Nest() in src/vec/vec/impls/nest/vecnest.c
VecMAXPY_Seq() in src/vec/vec/impls/seq/dvec2.c
VecMAXPY_SeqKokkos() in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecMAXPY_SeqViennaCL() in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx

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Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages