slepc-main 2024-12-17
BVGetArrayRead
Returns a read-only pointer to a contiguous array that contains this processor's portion of the BV data.
Synopsis
#include "slepcbv.h"
PetscErrorCode BVGetArrayRead(BV bv,const PetscScalar **a)
Not Collective
Input Parameters
| bv | - the basis vectors context
|
Output Parameter
| a | - location to put pointer to the array
|
Notes
BVRestoreArrayRead() must be called when access to the array is no
longer needed. This operation may imply a data copy, for BV types that
do not store data contiguously in memory.
The pointer will normally point to the first entry of the first column,
but if the BV has constraints then these go before the regular columns.
See Also
BVRestoreArray(), BVInsertConstraints(), BVGetLeadingDimension(), BVGetArray()
Level
advanced
Location
src/sys/classes/bv/interface/bvbasic.c
Index of all BV routines
Table of Contents for all manual pages
Index of all manual pages