petsc-3.3-p7 2013-05-11
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 PETSC_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