PETSc version 3.17.0
VecGetArrayWriteAndMemType
Like VecGetArrayWrite(), but if this is a device vector it will aways return a device pointer to the device memory that contains this processor's portion of the vector data.
Synopsis
#include "petscvec.h"
PetscErrorCode VecGetArrayWriteAndMemType(Vec x,PetscScalar **a,PetscMemType *mtype)
Not Collective
Input Parameter
Output Parameters
| a | - the array
|
| mtype | - memory type of the array
|
Notes
The array must be returned using a matching call to VecRestoreArrayWriteAndMemType(), where it will label the device memory as most recent.
See Also
VecRestoreArrayWriteAndMemType(), VecGetArrayReadAndMemType(), VecGetArrayAndMemType(), VecGetArray(), VecRestoreArray(), VecGetArrayPair(), VecRestoreArrayPair(),
Level
beginner
Location
src/vec/vec/interface/rvector.c
Implementations
VecGetArrayWriteAndMemType_SeqKokkos in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecGetArrayWriteAndMemType_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages