FINALLY, ONE THAT WORKS ON NVIDIA!!! --
Silentarmy has worked on Nvidia since v4:
https://github.com/mbevand/silentarmy/blob/master/CHANGELOG.mdOK, and thanks again. KenshiroTheFist has implemented extranonce suscribe for mrb's silentarmy, and posted the code. The miner is working just fine except for the "#xnsub". If you are contributing to the code, or know who is, please encourage them to merge the available "#xnsub" code.
I am aware of the extranonce patch and the only reason I have not merged it already is because it is not high-priority. Silentarmy works just fine as it is on nicehash.
What is the #xnsub patch?