Nothing done yet, but I wanted to be public about the progress on this as per my post last week that I'd start doing a simpleminer-based GPU miner if stratum wasn't done by today.
https://github.com/dave-andersen/boolberry/tree/opencl(I still think stratum is better -- it would be easier to add an OpenCL miner to the stratum one than to simpleminer.)
Per a good suggestion from Crypto_Zoidberg, I'm doing this in OpenCL, and will aim to have it work on both AMD and Nvidia GPUs.
It's going to take a bit for me to get the build environment issues (modern boost and opencl yadda yadda) all worked out, but I'll keep this post updated as I go along. This won't be super-zippy progress -- I know cuda better than OpenCL and I'm not a cbuchner1-level GPU wizard -- but I've done enough OpenCL to know that I can get it done. And I think that the cross-platform benefits are important.
Progress tracker:
2014-07-02: OpenCL simpleminer project started. It builds and finds the OpenCL library and header files. Does not do anything with OpenCL yet.
Build notes:
If you get the error:
...include/CL/cl_platform.h:95:11: error: "_WIN32" is not defined [-Werror=undef]
^
Change the line "#elif _WIN32" in your cl_platform.h to
"#elif defined(_WIN32)".
(This is specific to the version of opencl drivers installed and appears to be a bug in one of the header files.)
Please don't let this slow anyone down from doing stratum - if you get a solid implementation, I'll happily stop futzing with simpleminer (and throw you an extra few BBR as a thank you.
), and will then look at whether we can take the ccminer version as a base for creating a multiplatform implementation, once it's available.
