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

Input Parameters#

  • s - first vector

  • t - second vector

Output Parameters#

  • dp - s’conj(t)

  • nm - t’conj(t)

Note#

conj(x) is the complex conjugate of x when x is complex

See Also#

Vec, VecDot(), VecNorm(), VecDotBegin(), VecNormBegin(), VecDotEnd(), VecNormEnd()

Level#

advanced

Location#

src/vec/vec/utils/vinv.c

Implementations#

VecDotNorm2_MPIKokkos() in src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx
VecDotNorm2_MPIViennaCL() in src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx
VecDotNorm2_Nest() in src/vec/vec/impls/nest/vecnest.c
VecDotNorm2_SeqKokkos() in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
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