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# VECVIENNACL
VECVIENNACL = "viennacl" - A VECSEQVIENNACL on a single-process communicator, and VECMPIVIENNACL otherwise. 
## Options Database Keys

- ***-vec_type viennacl -*** sets the vector type to VECVIENNACL during a call to VecSetFromOptions()





## See Also
 `VecCreate()`, `VecSetType()`, `VecSetFromOptions()`, `VecCreateMPIWithArray()`, `VECSEQVIENNACL`, `VECMPIVIENNACL`, `VECSTANDARD`, `VecType`, `VecCreateMPI()`, `VecCreateMPI()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx.html#VECVIENNACL">src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx)


[Index of all Vec routines](index.md)  
[Table of Contents for all manual pages](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)