Post
Topic
Board Mining (Altcoins)
Re: [ANN] sgminer v5 - new unified multi-algorithm on-the-fly kernel switching miner
by
badman74
on 27/07/2014, 19:44:17 UTC
I'm testing latest GIT build of v5, and I have a few drop in hashrate compared to dedicated miners :
This is for a R9 280X Tri-X
Scrypt : v5 = 755 Kh/s, ref = 760 Kh/s, it's OK
X11 : v5 = 3,2 Mh/s, ref = 3,5 Mh/s, it's less than using sph-sgminer_x11mod (https://github.com/lasybear/sph-sgminer_x11mod)
X13 : v5 = can't compile .cl files at start, should be a bug introduced recently, ref = 2,45 Mh/s (same as X11)
Keccak : v5 = 380 Mh/s, ref = 370 Mh/s, OK
Nist5 : v5 = 7 Mh/s, ref = 13 Mh/s, it's VERY BAD DROP !

Maybe I'm missing some important tweaking (each miner have his own configuration when using different kernels) but using V5 drop hashrate on most cases.
If you have suggestions (config files), post them.

Thanks.
Even worse performance when using Scrypt-N (nfactor 11).
My reference is the old vertminer (yes, still alive and working better than anyone) = 380 Kh/s
The actual sgminer-v5 is really lagging = 305-310 Kh/s.

The idea of a multi protocol miner is a good idea, but performance should be at least near the same of the dedicated miner. If you drop all optimizations done, who will use that miner ?
the dropped hash rate is a known issue (at least on some)
it was introduced as far as i can tell as an upgrade.... (don't know how it affects other cards as i only have 290 and 290x)
i found the change in groestl.cl that gives back pretty much all the lost hashes, except for scrypt/nscrypt and i think that is from 14.4/14.7 driver upgrade
x13 builds fine for me and runs at +20mh/s on my 290x, x11 at 6mh/s and i don't remember the numbers for the others (my 290x is overclocked to 1040/1500 but i think it only fave me around 200kh/s extra)
if you wanna try my prebuilt binary is in my sig