petsc-master 2018-01-20
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VecMTDot

Computes indefinite vector multiple dot products. That is, it does NOT use the complex conjugate.

Synopsis

#include "petscvec.h"   
PetscErrorCode  VecMTDot(Vec x,PetscInt nv,const Vec y[],PetscScalar val[])
Collective on Vec

Input Parameters

x - one vector
nv - number of vectors
y - array of vectors. Note that vectors are pointers

Output Parameter

val -array of the dot products

Notes for Users of Complex Numbers

For complex vectors, VecMTDot() computes the indefinite form
     val = (x,y) = y^T x,
where y^T denotes the transpose of y.

Use VecMDot() for the inner product

     val = (x,y) = y^H x,
where y^H denotes the conjugate transpose of y.

See Also

VecMDot(), VecTDot()

Level

intermediate

Location

src/vec/vec/interface/rvector.c

Implementations

VecMTDot_MPI in src/vec/vec/impls/mpi/pvec2.c
VecMTDot_Nest in src/vec/vec/impls/nest/vecnest.c
VecMTDot_Seq in src/vec/vec/impls/seq/dvec2.c
VecMTDot_SeqViennaCL in src/vec/vec/impls/seq/seqviennacl/vecviennacl.c

Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages