petsc-3.5.1 2014-08-06
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VecMDotBegin

Starts a split phase multiple dot product computation.

Synopsis

#include "petscvec.h"    
PetscErrorCode  VecMDotBegin(Vec x,PetscInt nv,const Vec y[],PetscScalar result[])

Input Parameters

x - the first vector
nv - number of vectors
y - array of vectors
result - where the result will go (can be NULL)

Notes

Each call to VecMDotBegin() should be paired with a call to VecMDotEnd().

See Also

VecMDotEnd(), VecNormBegin(), VecNormEnd(), VecNorm(), VecDot(), VecMDot(),
VecTDotBegin(), VecTDotEnd(), VecMTDotBegin(), VecMTDotEnd(), 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