petsc-main 2021-03-04
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VecGetArrayAndMemType

 Like VecGetArray(), but if this is a GPU 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 VecGetArray().

Synopsis

#include "petscvec.h"   
PetscErrorCode VecGetArrayAndMemType(Vec x,PetscScalar **a,PetscMemType *mtype)
Logically Collective on Vec

Input Parameter

x - the vector

Output Parameters

a - location to put pointer to the array
mtype - memory type of the array

See Also

VecRestoreArrayAndMemType(), VecRestoreArrayAndMemType(), VecRestoreArray(), VecGetArrayRead(), VecGetArrays(), VecGetArrayF90(), VecGetArrayReadF90(),
VecPlaceArray(), VecGetArray2d(), VecGetArrayPair(), VecRestoreArrayPair(), VecGetArrayWrite(), VecRestoreArrayWrite()

Level

beginner

Location

src/vec/vec/interface/rvector.c

Implementations

VecGetArrayAndMemType_SeqKokkos in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecGetArrayAndMemType_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