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)

Notes#

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

See Also#

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_MPICUDA in src/vec/vec/impls/mpi/mpicuda/mpicuda.cu
VecDotNorm2_MPIHIP in src/vec/vec/impls/mpi/mpihip/mpihip.hip.c
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_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda2.cu
VecDotNorm2_SeqHIP in src/vec/vec/impls/seq/seqhip/vechip2.hip.c
VecDotNorm2_SeqViennaCL in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx


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