[petsc-dev] Not possible to do a VecPlaceArray for veccusp

[Karl Rupp]

 >     This is not about performance, but about providing the ability for
>     users to 'implant' their own memory buffers. CUSP doesn't allow it
>     (which was the initial point of this thread).
>
>
> Thanks. Sorry I missed that. Given CPU memcpy is an order of magnitude
> more bandwidth than PCI offload, I still don't get the point, but I
> don't need to.

User-provided GPU memory buffers. CUDA buffers. Avoiding PCI Express ;-)

Best regards,
Karli