petsc-3.3-p7 2013-05-11

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 PETSC_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