petsc-3.14.5 2021-03-03
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# VecStrideMinAll

Computes the minimum of subvector of a vector defined by a starting point and a stride and optionally its location.

### Synopsis

    #include "petscvec.h"
    PetscErrorCode  VecStrideMinAll(Vec v,PetscInt idex[],PetscReal nrm[])

Collective on Vec

### Input Parameter

| v | - the vector

### Output Parameter

| idex | - the location where the minimum occurred (not supported, pass NULL, if you need this, send mail to petsc-maint@mcs.anl.gov to request it)
| nrm | - the minimums of each subvector

### Notes

One must call VecSetBlockSize() before this routine to set the stride information, or use a vector created from a multicomponent DMDA.

The dimension of nrm must be the same as the vector block size

### See Also

VecMin(), VecStrideNorm(), VecStrideGather(), VecStrideScatter(), VecStrideMax()

### Level

advanced

### Location

src/vec/vec/utils/vinv.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages