On Monday, February 29, 2016, Karl Rupp <r...@iue.tuwien.ac.at> wrote:
> Hi Jeff, > > > Ok, this is on fairly short notice considering the changes required. > >> I recommend to start with copying the CUSP sources and migrate it >> over to VECCUDA by replacing any use of cusp::array1d to a raw CUDA >> handle. Operations from CUSP should be replaced by CUBLAS calls. >> >> >> It's hard to imagine any performance benefit from this unless CUSP >> sucks. What am I missing? >> > > 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. Jeff > Best regards, > Karli > -- Jeff Hammond jeff.scie...@gmail.com http://jeffhammond.github.io/