VecSum

Computes the sum of all the components of a vector.

Synopsis

#include "petscvec.h" 
PetscErrorCode VecSum(Vec v, PetscScalar *sum)

Collective

Input Parameter

• v - the vector

Output Parameter

• sum - the result

See Also

Vec, VecMean(), VecNorm()

Level

beginner

Location

src/vec/vec/utils/vinv.c

Examples

src/vec/vec/tutorials/ex13.c
src/ts/tutorials/extchem.c
src/tao/unconstrained/tutorials/spectraladjointassimilation.c
src/ts/tutorials/ex9.c
src/dm/tutorials/ex2.c
src/tao/pde_constrained/tutorials/elliptic.c
src/tao/pde_constrained/tutorials/hyperbolic.c
src/ksp/ksp/tutorials/ex59.c
src/vec/vec/tutorials/ex18.c
src/vec/vec/tutorials/ex18f.F90

Implementations

VecSum_SeqKokkos() in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx

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