petsc-master 2019-08-22
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VecNormEnd

Ends a split phase norm computation.

Synopsis

#include "petscvec.h"    
PetscErrorCode  VecNormEnd(Vec x,NormType ntype,PetscReal *result)

Input Parameters

x - the first vector
ntype - norm type, one of NORM_1, NORM_2, NORM_MAX, NORM_1_AND_2
result - where the result will go

Notes

Each call to VecNormBegin() should be paired with a call to VecNormEnd().

The x vector is not allowed to be NULL, otherwise the vector would not have its correctly cached norm value

See Also

VecNormBegin(), VecNorm(), VecDot(), VecMDot(), VecDotBegin(), VecDotEnd(), 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