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().

See Also

VecDotEnd(), VecNormBegin(), VecNormEnd(), VecNorm(), VecDot(), VecMDot(), VecTDotBegin(), VecTDotEnd(), PetscCommSplitReductionBegin()

Level

advanced

Location

src/vec/vec/utils/comb.c

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Index of all Vec routines
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