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


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Index of all Vec routines
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Index of all manual pages