VecMDot#
Computes multiple vector dot products.
Synopsis#
#include "petscvec.h"
PetscErrorCode VecMDot(Vec x, PetscInt nv, const Vec y[], PetscScalar val[])
Collective
Input Parameters#
x - one vector
nv - number of vectors
y - array of vectors.
Output Parameter#
val - array of the dot products (does not allocate the array)
Notes for Users of Complex Numbers#
For complex vectors, VecMDot() computes
val = (x,y) = y^H x,
where y^H denotes the conjugate transpose of y.
Use VecMTDot() for the indefinite form
val = (x,y) = y^T x,
where y^T denotes the transpose of y.
See Also#
Level#
intermediate
Location#
Examples#
src/vec/vec/tutorials/ex1f90.F90
src/vec/vec/tutorials/ex20f90.F90
src/vec/vec/tutorials/ex1f.F90
src/vec/vec/tutorials/ex1.c
Implementations#
VecMDot_MPIKokkos() in src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx
VecMDot_MPIViennaCL() in src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx
VecMDot_MPI() in src/vec/vec/impls/mpi/pvec2.c
VecMDot_Nest() in src/vec/vec/impls/nest/vecnest.c
VecMDot_Seq() in src/vec/vec/impls/seq/dvec2.c
VecMDot_Seq() in src/vec/vec/impls/seq/dvec2.c
VecMDot_SeqKokkos() in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecMDot_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