petsc-3.11.4 2019-09-28
VecDotNorm2
computes the inner product of two vectors and the 2-norm squared of the second vector
Synopsis
#include "petscvec.h"
PetscErrorCode VecDotNorm2(Vec s,Vec t,PetscScalar *dp, PetscReal *nm)
Collective on Vec
Input Parameter
| s | - first vector
|
| t | - second vector
|
Output Parameter
| dp | - s'conj(t)
|
| nm | - t'conj(t)
|
Notes
conj(x) is the complex conjugate of x when x is complex
See Also
VecDot(), VecNorm(), VecDotBegin(), VecNormBegin(), VecDotEnd(), VecNormEnd()
Keywords
vector, sqrt, square root
Level
advanced
Location
src/vec/vec/utils/vinv.c
Implementations
VecDotNorm2_MPICUDA in src/vec/vec/impls/mpi/mpicuda/mpicuda.cu
VecDotNorm2_MPIViennaCL in src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx
VecDotNorm2_Nest in src/vec/vec/impls/nest/vecnest.c
VecDotNorm2_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda2.cu
VecDotNorm2_SeqViennaCL in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages