[oneofthose]

There is another library authored by me and some colleagues. It is called Aura: https://github.com/sschaetz/aura

I blogged about these kinds of libraries here (overview): http://www.soa-world.de/echelon/2014/04/c-accelerator-librar...

A new addition is welcome as we still have not found the perfect API for accelerator programming. EasyOpenCL seems very simple and easy to use but I feel like it is very restricted.

For getting started with OpenCL development these days I would recommend PyOpenCL. Since everything is in Python, data can be generated easily, results can be plotted using well known Python tools which simplified debugging. Kernels developed in PyOpenCL can directly be copied to other APIs (raw OpenCL C API or some of the other C/C++ wrappers) and reused in production code.

[Polytonic]

I think the problem with (most of?) these libraries is that they don't solve the fundamental problem, which is: the OpenCL API is awful to work with. Various strategies have been attempted, mainly involving some form of "wrap the C API in less verbose C++!"