petsc-3.10.5 2019-03-28
VecSum
Computes the sum of all the components of a vector.
Synopsis
#include "petscvec.h"
PetscErrorCode VecSum(Vec v,PetscScalar *sum)
Collective on Vec
Input Parameter
v -the vector
Output Parameter
sum -the result
See Also
VecNorm()
Level
beginner
Location
src/vec/vec/utils/vinv.c
Examples
src/vec/vec/examples/tutorials/ex18.c.html
src/ts/examples/tutorials/ex9.c.html
src/ts/examples/tutorials/extchem.c.html
src/tao/unconstrained/examples/tutorials/spectraladjointassimilation.c.html
src/tao/pde_constrained/examples/tutorials/elliptic.c.html
src/tao/pde_constrained/examples/tutorials/hyperbolic.c.html
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages