Post
Topic
Board Announcements (Altcoins)
Re: [ANN][YAC] yacoin: yet another altcoin. START is now.
by
megablue
on 08/05/2013, 20:34:47 UTC
So, instead of getting raped by GPU farms, we are now getting raped by multi-CPU server farms Huh

No, just the CPUs on GPU farms. Smiley

Probably you're getting raped by GPU farms, too.  You don't need to change the kernel from cgminer or reaper all that much to GPU mine this coin right now, and at the current value of N I would wager that most GPUs get 1000+ KH/s.

Wrong... it isn't using standard scrypt algo... you can mine with gpu but non of your shares will be accepted by the network.

I'm aware it's running block header hashes with keccak and chacha20 -- but all you need to do is port them to GPU kernel that comes with cgminer/reaper.
https://github.com/ckolivas/cgminer/blob/master/scrypt130302.cl

The keccak/chacha20 implementation he took from scrypt-jane is here
https://github.com/floodyberry/scrypt-jane/blob/master/code/scrypt-jane-hash_keccak.h
https://github.com/floodyberry/scrypt-jane/blob/master/code/scrypt-jane-mix_chacha.h

Edit: You need to play with the lookup_gap and thread_concurrency to get the best performance, too.

The nfactor thing is quite easily ported, I had made the nFactor worked with cgminer, however i have no experience dealing with opencl and nor do i speak scrypt (or keccak, chacha) fluently.