VecMax#
Determines the vector component with maximum real part and its location.
Synopsis#
#include "petscvec.h"
PetscErrorCode VecMax(Vec x, PetscInt *p, PetscReal *val)
Collective
Input Parameter#
x - the vector
Output Parameters#
p - the index of
val
(passNULL
if you don’t want this) in the vectorval - the maximum component
Notes#
Returns the value PETSC_MIN_REAL
and negative p
if the vector is of length 0.
Returns the smallest index with the maximum value
Developer Note#
The Nag Fortran compiler does not like the symbol name VecMax
See Also#
Level#
intermediate
Location#
Examples#
src/ksp/ksp/tutorials/ex72.c
src/ts/tutorials/ex9.c
src/ts/tutorials/ex17.c
src/dm/tutorials/ex15.c
src/vec/vec/tutorials/ex1.c
Implementations#
VecMax_MPIKokkos() in src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx
VecMax_MPI() in src/vec/vec/impls/mpi/pvec2.c
VecMax_Nest() in src/vec/vec/impls/nest/vecnest.c
VecMax_Seq() in src/vec/vec/impls/seq/dvec2.c
VecMax_SeqKokkos() in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages