Quote from: myagui on March 01, 2014, 01:17:43 AM

Quote from: cbuchner1 on February 28, 2014, 11:47:32 PM

Quote from: fruitsdemers on February 28, 2014, 11:44:31 PM

Helix at the moment but I remember the maxcoin pools doing the same thing.
It's actually slightly higher than half but it's consistently about 40% lower than it should...
I'm currently using your latest build with the T2880x24 command on a 780ti.

we could try tinkering a bit with the difficulty target in the cudaminer code (artificially lowering it).
If the pools still accept these shares, you would see a higher hash rate and higher payouts

Christian

Just to add that I too have a similar experience, with the latest & greatest release from today (and also around Max release). I'm seeing the same 40% less hashrate reported by the pool with Helixcoin. Nothing seems to change if I setup separate workers for my GTX770 & the GTX 750 TI, or if I keep them on a single launch command.

The only thing odd that I've noticed, is that the hashrate reported by the pool get's closer to the value reported by Cudaminer, when higher Vardiff kicks in (at say 128). At Vardiff 32 & 64 the discrepancy is much larger, and it's not a case of just the expected variations in share findings or luck, as I see the same hashrate reported over long periods of time (as long as the Vardiff remains the same).
Is it possible that the "changes" or "fix" that you worked on shortly after the Maxcoin launch have left some gremlin vestiges?

PS: Again an awesome bump for the 'green team' with that latest update with the hand from nvidia. Big thanks for the update Christian. I'm surely going to donate as soon as I'm fortunate to get a break on a new coin/algo launch.
Cheers!

Thank you for corroborating.
Over longer periods of time, the hashrate reported by the pool seems to shrink even more to perhaps 1/5th of what's being reported directly from the client. After trying all manners of shenanigans, I've noticed that restarting my cudaminer every few minutes seems to attenuate, if not eliminate, the problem a little so it definitively feels like it's some kind of error with vardiff...

Unless this can be somehow fixed, it's currently more profitable to mine vertcoin.