Hello, Windows 10 user here. How can I be sure I'm using optimized atlas? I tried building it earlier, but with no success. I found some info on atlas forum for older versions, but couldn't get it to work.
Easy: if it works, it uses the ATLAS version that is installed on the system, which means that when it works, it will use the optimized ATLAS that you provided.
That means that you have to build it itself, which is problematic on Windows, BUT, the author recently released version 3.10.3, and one of major improvements is that builds fine on Windows with cygwin and mingw.
In principle, it works on Nvidia, but Nvidia still does not support 1.2...
But, new pluggable engine for OpenCL 1.2 is in plan, and it will have optimizations for Nvidia, so, it is not something that is out of reach.
How about Intel/AMD on-die GPUs? (And any thoughts on if that's likely to help -- now, or with future generations -- as opposed to just sticking to the CPU side?)
The library does NOT depend on the version, since it supports pluggable engines.
Currently the only available engine is focused on AMD GCN GPUs and uses OpenCL 2.0 features in its kernels.
Other engines are possible and planned, notably one that would work with older versions of OpenCL and support tuning for Nvidia.