Have you tried thrust? For a limited but very useful set of operations, it is nearly that painless, as long as you don't mind a generous helping of C++ template

Have you tried thrust? For a limited but very useful set of operations, it is nearly that painless, as long as you don't mind a generous helping of C++ template boilerplate. http://thrust.github.io/ http://thrust.github.io/ For single GPU stuff, I find myself writing the performance critical kernels in cuda, and using thrust for nearly all the easy stuff.