PETSc version 3.16.5
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# VecMin

Determines the vector component with minimum real part and its location.

### Synopsis

    #include "petscvec.h"
    PetscErrorCode  VecMin(Vec x,PetscInt *p,PetscReal *val)

Collective on Vec

### Input Parameter

| x | - the vector

### Output Parameters

| p | - the location of val (pass NULL if you don't want this location)
| val | - the minimum component

### Notes

Returns the value PETSC_MAX_REAL and negative p if the vector is of length 0.

This returns the smallest index with the minumum value

### See Also

VecMax()

### Level

intermediate

### Location

src/vec/vec/interface/rvector.c

### Examples

src/vec/vec/tutorials/ex1.c.html
src/dm/tutorials/ex15.c.html
src/ksp/ksp/tutorials/ex72.c.html
src/ts/tutorials/ex9.c.html
src/ts/tutorials/ex10.c.html
src/ts/tutorials/ex17.c.html

### Implementations

VecMin_MPIKokkos in src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx
VecMin_MPICUDA in src/vec/vec/impls/mpi/mpicuda/mpicuda.cu
VecMin_MPI in src/vec/vec/impls/mpi/pvec2.c
VecMin_Nest in src/vec/vec/impls/nest/vecnest.c
VecMin_Seq in src/vec/vec/impls/seq/dvec2.c
VecMin_SeqKokkos in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecMin_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda2.cu
Index of all Vec routines
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Index of all manual pages