petsc-3.7.7 2017-09-25
VecCUDAPlaceArray
Allows one to replace the GPU array in a vector with a GPU array provided by the user. This is useful to avoid copying an array into a vector.
Synopsis
PetscErrorCode VecCUDAPlaceArray(Vec vin,PetscScalar *a)
Not Collective
Input Parameters
| vec | - the vector
|
| array | - the GPU array
|
Notes
You can return to the original GPU array with a call to VecCUDAResetArray()
It is not possible to use VecCUDAPlaceArray() and VecPlaceArray() at the
same time on the same vector.
See Also
VecPlaceArray(), VecGetArray(), VecRestoreArray(), VecReplaceArray(), VecResetArray(), VecCUDAResetArray(), VecCUDAReplaceArray()
Level:developer
Location:src/vec/vec/impls/seq/seqcuda/veccuda2.cu
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages