Compiling on Windows is a pain. I have to rebuild my compile environment every month because VS shuts down
unless I register. I had to create a virtual machine snapshot before installing VS the first time, otherwise the
tombstone from the previous install would trigger the forced registration imediately.
Compile with visual studio express 2013. It is free
VS community is advertised as free but it only works for a month without registering. The registration might be
free but I haven't tried it. I don't recall beig able to download VS Express, I'll take another look, thanks.
Got the test results on a EVGA 980 reference standard clocks.
76-7.5 76-6.5 74-6.5
quark 19.9 19.3 19.3
x11 9850 9920 10000
lyra2v2 10.7 11.4 11.6
neo 220 635 640
These results confirm the increase in quark is purely due to cuda 7.5. It also shows no degradation
in cuda 6.5 performance, a win-win for quark.
The neo degradation is also purely due to cuda 7.5 with no significant difference between r74 & r76
when compiled with cuda 6.5.
X11 is interesting, the 76-6.5 performance is lower than 74-6.5 and the 76-7.5 performance is lower still, a lose-lose.
Since quark was the focus of the most recent changes it proves that cuda 7.5 can perform better than 6.5. I hope
these results translate to the other algos.