PETSc version 3.15.5
VecStrideScale
Scales a subvector of a vector defined by a starting point and a stride. 
Synopsis
#include "petscvec.h" 
PetscErrorCode  VecStrideScale(Vec v,PetscInt start,PetscScalar scale)
Logically Collective on Vec
Input Parameter
|  | v | - the vector | 
|  | start | - starting point of the subvector (defined by a stride) | 
|  | scale | - value to multiply each subvector entry by | 
Notes
One must call VecSetBlockSize() before this routine to set the stride
information, or use a vector created from a multicomponent DMDA.
This will only work if the desire subvector is a stride subvector
See Also
 VecNorm(), VecStrideGather(), VecStrideScatter(), VecStrideMin(), VecStrideMax(), VecStrideScale()
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