petsc-3.12.5 2020-03-29
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VecGetArrayReadInPlace

 Like VecGetArrayRead(), but if this is a CUDA vector and it is currently offloaded to GPU, the returned pointer will be a GPU pointer to the GPU memory that contains this processor's portion of the vector data. Otherwise, it functions as VecGetArrayRead().

Synopsis

#include "petscvec.h"   
PetscErrorCode VecGetArrayReadInPlace(Vec x,const PetscScalar **a)
Not Collective

Input Parameters

x -the vector

Output Parameter

a -the array

Notes

The array must be returned using a matching call to VecRestoreArrayReadInPlace().

See Also

VecRestoreArrayReadInPlace(), VecGetArray(), VecRestoreArray(), VecGetArrayPair(), VecRestoreArrayPair(), VecGetArrayInPlace()

Level

beginner

Location

src/vec/vec/interface/rvector.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages