First hand experience with Darkcoin mining and x11 algo

[luke997]

I disagree with most of the temp findings.  I find it to be running cooler but the numbers people are throwing out there seem crazy.  My rig avg temp mining scrypt is 77C using engine:1000 mem:1375.  Mining Darkcoin im at 73C using engine:1050 mem:1400.  That is less then 2% cooler for my end result.  I think it's fair to compare the different OCs as I think many others will OC more on x11 because they can push further then scrypt,  I just don't get where people are coming up with this 30% cooler and such.  Many of the screen shots don't mention anything about uptime, did they even run long enough to get to full temp?  Overall I do find x11 favorable to scrypt and I havn't even been hit by any warm weather yet.

Something is off with your setup, perhaps there's no airflow and in scrypt the only thing keeping 77C is GPU throttling?

I have several rigs, fully open (no case), open case, and every single card is running more than 30C cooler.
I even don't need to open windows fully anymore 

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[DemetriusAstroBlack]

Im running full open rig, risers and as much distance as they allow, about 3 inches between cards. No gpu throtteling, 700Khash per 7970 scrypt, 2.05Mhash running darkcoin.

[luke997]

Im running full open rig, risers and as much distance as they allow, about 3 inches between cards. No gpu throtteling, 700Khash per 7970 scrypt, 2.05Mhash running darkcoin.

Something is wrong, haven't heard of anyone yet with so insignificant difference between X-11 and scrypt.
What version of sph-sgminer you have and what exact settings you run?

[DemetriusAstroBlack]

sgminer 4.1.0-96-g983e

{
"pools" : [
   {
      "url" : "stratum+tcp://stratum1.suchpool.pw:3335",
      "user" : "EDITED",
      "pass" : "x"
   },
   {
      "url" : "stratum+tcp://stratum2.suchpool.pw:3335",
      "user" : "EDITED",
      "pass" : "x"
   }
]
,
"intensity" : "13,13,18",
"worksize" : "256,256,256",
"kernel" : "darkcoin,darkcoin,darkcoin",
"lookup-gap" : "2,2,2",
"thread-concurrency" : "8192,8192,15232",
"shaders" : "0,0,0",
"gpu-threads" : "2,2,1",
"gpu-engine" : "900-1050,900-1050,900-1100",
"gpu-fan" : "0-85,0-85,0-85",
"gpu-memclock" : "1400,1400,1500",
"temp-cutoff" : "95,95,95",
"temp-overheat" : "85,85,85",
"temp-target" : "75,75,75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "1",
"failover-switch-delay" : "60",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "1",
"tcp-keepalive" : "30",
"temp-hysteresis" : "3",
"shares" : "0",
"auto-fan" : true,
"auto-gpu" : true,
"kernel-path" : "/usr/local/bin"
}

I have to leave for several hours but thanks for helping.  Could be the minor OC makes that big of a difference, dont get me wrong it is cooler, just not nearly as much as others are reporting.  When I return ill post some data with the same OC settings, maybe im comparing apples to oranges.

[luke997]

sgminer 4.1.0-96-g983e

{
"pools" : [
   {
      "url" : "stratum+tcp://stratum1.suchpool.pw:3335",
      "user" : "EDITED",
      "pass" : "x"
   },
   {
      "url" : "stratum+tcp://stratum2.suchpool.pw:3335",
      "user" : "EDITED",
      "pass" : "x"
   }
]
,
"intensity" : "13,13,18",
"worksize" : "256,256,256",
"kernel" : "darkcoin,darkcoin,darkcoin",
"lookup-gap" : "2,2,2",
"thread-concurrency" : "8192,8192,15232",
"shaders" : "0,0,0",
"gpu-threads" : "2,2,1",
"gpu-engine" : "900-1050,900-1050,900-1100",
"gpu-fan" : "0-85,0-85,0-85",
"gpu-memclock" : "1400,1400,1500",
"temp-cutoff" : "95,95,95",
"temp-overheat" : "85,85,85",
"temp-target" : "75,75,75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "1",
"failover-switch-delay" : "60",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "1",
"tcp-keepalive" : "30",
"temp-hysteresis" : "3",
"shares" : "0",
"auto-fan" : true,
"auto-gpu" : true,
"kernel-path" : "/usr/local/bin"
}

I have to leave for several hours but thanks for helping.  Could be the minor OC makes that big of a difference, dont get me wrong it is cooler, just not nearly as much as others are reporting.  When I return ill post some data with the same OC settings, maybe im comparing apples to oranges.

I have a theory that temp-target is causing this, how about if you try to run only with the minimal settings and let the GPU manage itself?

Try set only:
intensity, worksize, threads, gpu-engine, gpu-memclock and pool config?

[foodies123]

sorry to say this guys but x11 is just groestl + quark it does 3 times better on gpu than on cpu (as groestl standolone does too) but considering cost and power it's pretty good ... just not the breakthrough it is hyped to be.

[stealth923]

But these coins are not profitable. That's the main issue why I went back to mining regular scrypt.

It is very profitable. Especially where electricity is expensive such as Australia where it's 0.26 per kilowatt hour.

[Hazard]

All this means is that the X11 miner is poorly coded and not taking full advantage of the GPU.

The public miner, anyway. No doubt there's a private miner out there that's 100-200% more efficient.

anyone is more than welcome to improve on the gpu miner

They have. And they're keeping it to themselves.

[Amph]

But these coins are not profitable. That's the main issue why I went back to mining regular scrypt.

no coin is profitable at the moment, unless you are instamining new coin and  in that case the algo used mean nothing...

[nagatlakshmi]

But these coins are not profitable. That's the main issue why I went back to mining regular scrypt.

no coin is profitable at the moment, unless you are instamining new coin and  in that case the algo used mean nothing...

I agree with you 

[bumblebee33]

What are you using for mining? I used sph-sgminer https://bitcointalk.org/index.php?topic=475795.0. Is this the one most of you use? Are there better ones out there?

[DemetriusAstroBlack]

Chopped alot of crap out of my config and made huge difference.  I had sgminer write the config for me and made just a few adjustments to it, weird.  I dont have the time to mess around with which line did it exactly but I hacked my config down to this:

{
"pools" : [
   {
      "url" : "stratum+tcp://stratum1.suchpool.pw:3335",
      "user" : "EDITED",
      "pass" : "x"
   },
   {
      "url" : "stratum+tcp://stratum2.suchpool.pw:3335",
      "user" : "EDITED",
      "pass" : "x"
   }
]
,
"intensity" : "13,13,18",
"worksize" : "256,256,256",
"gpu-threads" : "2,2,1",
"thread-concurrency" : "8192,8192,15232",
"kernel" : "darkcoin,darkcoin,darkcoin",
"gpu-engine" : "500-1050,500-1050,500-1100",
"gpu-fan" : "0-85,0-85,0-85",
"gpu-memclock" : "1400,1400,1500",
"auto-gpu" : true,
"kernel-path" : "/usr/local/bin"
}

About the same hash, one 7970 at 50C the other at 52C. Scrypt was at 77C. Huge difference. About 8% cooler then mining scrypt.  Good suggestion Luke997. 


Playing with setting more I notice the following:
Auto-fan on and having the gpu-fan from 0-85 together causes the problem.  Without actually looking at my fans, I think its trying to turn my fans off.   I notice that randomly for a split second it reports fan speed of 9999RPM but then goes back to showing super low RPMs, in the 1000s.  Setting auto fan on and changing gpu-fan to "40-100" causes temps in the mid 60s and no more 9999RPM showing up.  Seems drivers or whatever controls fans normally works better then having sgminer control it.  No auto-fan puts fan at 3500RPM, which is a little loud, ill tune a quite fan speed to temp ratio I like later.  Changing the target temp might fix the problem as well so I think Luke997 was right on.

[digitalindustry]

All this means is that the X11 miner is poorly coded and not taking full advantage of the GPU.

The public miner, anyway. No doubt there's a private miner out there that's 100-200% more efficient.

anyone is more than welcome to improve on the gpu miner

They have. And they're keeping it to themselves.

no doubt - but i still think 100 or 200% is acceptable for cPoW which is what X11 come under SIF being the original which Quark followed on from. 

[reda]

All this means is that the X11 miner is poorly coded and not taking full advantage of the GPU.

The public miner, anyway. No doubt there's a private miner out there that's 100-200% more efficient.

hehe  you are right around 3 times more efficient i can see 6.23mh per 280X
checkout the deep web

[BitcoinTate]

All this means is that the X11 miner is poorly coded and not taking full advantage of the GPU.

The public miner, anyway. No doubt there's a private miner out there that's 100-200% more efficient.

anyone is more than welcome to improve on the gpu miner

They have. And they're keeping it to themselves.

I agree with Hazard. Someone out there is laughing at this thread right now. The GPU is simply not being fully utilized.

[Watchy312]

Anyway i don't even understand why people mine this stuff as it's not profitable at all...it would cost me money to mine it & sell it

Haha you are so funny   If this cost money for you then you are in the wrong way !!! If you often selling what you mine you are totally wrong... This game is not for such people and if continue to do that you will be dropped from the train by yourself !!!

Actually you are the funny one lol

There is no point to mine for a higher cost than the market price, you rather directly buy the coin.
If you cannot tell this is nonsense you should not be into cryptos, you may loose big.

It may be the case because of what Hazard said, some people with a better gpu miner can dump coins they mine way cheaper than you.

[popshot]

Is it current gen. ASIC resistant?

[Coinmin]

But these coins are not profitable. That's the main issue why I went back to mining regular scrypt.

I don't know how you came up to that conclusion. Right, now you're getting 0.0077bmg for Hirocoin, which is higher than middlecoin (0.006) and you're paying 2x less electricity. You were right to some extent, X11 is not more profitable than scrypt, it's MUCH more profitable

Yes, x11 is a very attractive algorithm...

[smilecoin23]

Great, thanks for the recommendation.

[andruccho]

hehe  you are right around 3 times more efficient i can see 6.23mh per 280X
checkout the deep web

Could you share it? i tried to find anything like that, but i probably used not as deep web as you did