[petsc-dev] Backend independent VecGetArray for GPUs

[Karl Rupp]

Hi,

 > I re-wrote the code to include the code from this branch - it's made
> everything a lot simpler:
> https://github.com/ashwinsrnth/petsc-pycuda/blob/master/GPUArray.pyx
>
> If I can help with adding the functionality to `petsc4py`, I'd be glad to :)

thanks for the feedback! I'll clean up the feature branch and propagate 
the functionality to next tomorrow.

Best regards,
Karli