need optimized miner for i5-670 (with instruction AES).
Is this required for Windows 64 bit? Assuming it is then I will get on it right now. This processor does not support AVX instruction set so it is at a disadvantage straight away unfortunately. It is likely that my 32 bit miner is about as quick as it will get anyway
https://www.dropbox.com/s/dii8cvz7lp8xuey/XMGpoolminerWin32.rar?dl=0Watch this space for a 64 bit version - should not take me too long
Well that only took a few minutes and produced code that was identical to my previously-published generic version, so support for earlier processors is already built-in. It appears to me that the Cygwin compiler (in the way I have it set up) always produces code that will run on any x86_64 cpu from the source code provided. If you are already using my generic version from:-
https://www.dropbox.com/s/hiadf8o5u7bsit7/XMGpoolminerWin64.rar?dl=0then that should be fine, but take note of our previous findings here:-
https://bitcointalksearch.org/topic/m.8926975regarding the differences observed when running multiple threads from the minerd.exe command line.
Note also that MarcusDe has a collection of cpu-specific miners here:-
http://graymines.net/miners/magi/From my testing, MarcusDe' version for the Intel Haswell class of processors has the edge on speed (about 4% faster) over my generic version and does not seem to have the same problems with handling multiple threads, so does not require any special startup.
I would suggest trying out different versions of minerd to see which one(s) work best for you, or maybe have a go at compiling your own using the instructions provided here:-
https://bitcointalksearch.org/topic/m.8825199On another note, I have been having a play around with the latest version of GCC (just released) in Cygwin and it produces 64 bit minerd code that is a little bit smaller in size but runs at exactly the same speeds as before. I will be creating a software bundle to incorporate this newer version and more comprehensive tuning instructions in due course - it will be available on the same link. I will not be working on the 32 bit version any further unless somebody reports problems with it.