Scrypt jane support

[vizakenjack]

Hello. I really like your cgminer, could you add scrypt-jane support please? It could be disabled by default, just add additional --enable-scrypt-jane line while compiling.

I have tried to patch your miner with this patch: https://sites.google.com/site/rmdavidson/ but some fixes couldn't apply. I think it doesn't takes too much time to add this patch.

[vergoh]

That patch merges without too much work over the current revision. I have the changes available in my own fork (https://github.com/vergoh/cgminer-3.7.2-kalroth) and could do another pull request about that but it seems that my previous and still open pull request #12 blocks me from doing any new ones from the same branch before the previous gets merged.

[vizakenjack]

@vergoh thank you very much. Now I use your fork at all my rigs. Could you add sha-512 and N-scrypt? It would be universal single version for all.

[mmouse-]

@vergoh: seems like git just included script-jane in your merge request #12.
And I'd support vizakenjack's wishlist: Could you please include scrypt-N?

[Vortec4800]

I'd be interested in scrypt jane and scrypt-n support as well, so I can use multiple thread settings while mining ultracoin and vertcoin.

[vergoh]

Could you provide sources for the correct/latest versions of those extra support patches that you'd want be merged?

[mmouse-]

scrypt-N support is basically for vertcoin (and clones thereof).
The source for their vertminer is https://github.com/Bufius/vertminer-gpu
As vortec4800 said, vertminer doesn't run with multiple threads, and it seems generally difficult to get it running without lots of HW errors.
I'm not sure at which files to look for the relevant changes. Doesn't seem like a proper fork where you could simply do a diff...

[Thirtybird]

vertminer has its own scrypt opencl kernel that fixes the HW errors and actually works with standard scrypt as well, however it's performance is hit or miss. I've been working with it and adding support to my miner (which does scrypt, scrypt-chacha, and nscrypt), but it needs some work still as the nscrypt kernel performs slowly on newer cards for scrypt.