petsc-3.11.4 2019-09-28
VecDotBegin
Starts a split phase dot product computation.
Synopsis
#include "petscvec.h"
PetscErrorCode VecDotBegin(Vec x,Vec y,PetscScalar *result)
Input Parameters
| x | - the first vector
|
| y | - the second vector
|
| result | - where the result will go (can be NULL)
|
Notes
Each call to VecDotBegin() should be paired with a call to VecDotEnd().
seealso: VecDotEnd(), VecNormBegin(), VecNormEnd(), VecNorm(), VecDot(), VecMDot(),
VecTDotBegin(), VecTDotEnd(), PetscCommSplitReductionBegin()
Level
advanced
Location
src/vec/vec/utils/comb.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages