[VTC] Lyra2RE Vertcoin optimized miner, NOW WITH SOURCES!

[pallas]

@pcste

There has been various reports of people having similar issues to yours.
First of all, it looks like there is some sort of issue with the first card of the setup under certain conditions. I noticed this as well: my card 0 hashed but never returned a share, on multiple algos, including x11... but not all :-)
Another issue is that of half hashrate for the first card. I could never reproduce this problem. It seems to depend on the driver version, though.

What I can tell you is try with the precompiled binaries, also try 4 threads which seem to give better results on 280x (and slightly worse on 290x, at least in my case).
You can also try making your binaries with different driver version without reinstalling them, just by copying the opencl.dll file into the sgminer folder.
About hardware errors, are you sure the ram of your card can run reliably at 1500? Not all 290s can. Unfortunately such high ram clock is needed for lyra2re to go fast.
Finally I see you remove bin files in your 280x bat file, but not in the 290's, are you sure you removed the bins after installing the new drivers?
And superfinally I'm not sure 100% that two running sgminer instances are good: there is some bug about device selection on sgminer, so I wouldn't do it if possible.

Hope that helps

[pallas]

The miner has been developed on omega drivers (14.12) but it is reported to be working fine and as fast on newer ones - BUT - some users have reported half hashrate on the first card and fixed it by installing catalyst version 14.9.

[untalented]

The miner has been developed on omega drivers (14.12) but it is reported to be working fine and as fast on newer ones - BUT - some users have reported half hashrate on the first card and fixed it by installing catalyst version 14.9.

Thank you for solution.
I put amdocl.dll file from catalyst 14.9 (C:\AMD\AMD-Catalyst-14-9-win7-win8.1-64Bit-dd-ccc-whql\Packages\Drivers\Display\WB6A_INF\B176041)
to the miner folder, and all cards works well, even on drivers 15.5 beta 

[sp_]

current pool stats
r7 240 @ 266k   gtx 750ti 475k  cpu 419
the nvidia is using ccminer with open cl
I've seen the nvidia in the 700k once. cpu seems to always be the fastest
between all 3 I've been as high as 1.2Mhs. that was before I started tweeking the R7.  the 750ti is running @ stock.

ccminer with opencl  (yeah why not...)
current speed on an unreleased ccminer lyra version:
750ti: 1140kh/s
780ti: 2800kh/s
980  : 2400kh/s

nice ...
looking at releasing this in the near future djm? ...
#crysx

clearly not for nothing 

You can release it with a fee like you did with the whirlpoolx miner. Lyra2 and the other memory algos are heavily infected with botnets. Time to show some GPU power.

[djm34]

current pool stats
r7 240 @ 266k   gtx 750ti 475k  cpu 419
the nvidia is using ccminer with open cl
I've seen the nvidia in the 700k once. cpu seems to always be the fastest
between all 3 I've been as high as 1.2Mhs. that was before I started tweeking the R7.  the 750ti is running @ stock.

ccminer with opencl   (yeah why not...)
current speed on an unreleased ccminer lyra version:
750ti: 1140kh/s
780ti: 2800kh/s
980  : 2400kh/s

nice ...
looking at releasing this in the near future djm? ...
#crysx

clearly not for nothing  

You can release it with a fee like you did with the whirlpoolx miner. Lyra2 and the other memory algos are heavily infected with botnets. Time to show some GPU power.

I am thinking about it, but need something which can hold some hacking  
also the other problem is that I need to hard code pool names, with whirlpoolx that was rather easy but lyra must have more pool...

[Angora]

I picked up an HIS R7 240 card (on sale for $30)  2GB memory.
 
What is the max threads I can run on it?  Been running 2 just fine. 

Also what is the limit to how far I oc it w/o burning out the card?