petsc-3.5.4 2015-05-23

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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