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PaulR1
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May 02, 2014, 08:56:38 PM |
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Hi all,
has somebody experience with KNCminer ?
Did some of you buy or ordered a asic with them ?
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cointradero
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May 02, 2014, 09:01:06 PM |
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4GB cards, ThirtyBird, 6 x 4GB cards!!! The point is... NFactor does not effect system RAM. ThirtyBird, you have windows, and when I used windows, I remember needing more than 4GB of system RAM.
I can tell you, using xubunutu OS, buffersize is not a factor for YAC for my 4GB cards at NFactor 14. Obviously, it will be an issue for subsequent NFactors. But a buffersize of 3500 vs 3750 yields no different results at this time.
I don't know how the buffer loads, but could it have something to do with the controller only being 128 bit on r7? You can't push near the data down the pipe that I can with an r9 with a 512 bit controller. Or does it purely have to do with the different shader counts? Are the two inter-related? I'd need more tech support again, that's beyond my talents. |
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ivanlabrie
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May 02, 2014, 09:01:54 PM |
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It's not a false rumor and has been proven here many times. Thirtybird has explained it better than I can a few times in this thread, but the more cards you have, the more RAM you need to run it with a low lookup gap. My lack of system RAM only allows me to get about 80% out of each 290x I have because I can't run them with the higher lookup gap without one card refusing to start.
Also, you assume all new miners are using low end gear. What if a new miner comes in like me with 4x 290x cards and only 8 GB system RAM and has the same issues I do? I was already at a 25% profitability disadvantage against scrypt coins because of this, and that was before the orphan problem. It does work out good for CPU miners and 750 Ti miners, but it doesn't hold true for everyone.
That will be true with ultracoin miner. But yacminer, with its fine intensity tweaking should give you the same results on whatever lookup gap you mine. This right here is why I've advocated people using the "buffer-size" setting instead of thread-concurrency - it confuses what people think the problem may be. They both will accomplish the same things - allocating the OpenCL buffer for the card - but thread-concurrency is factored on lookup-gap, which gets fiddly when trying to test config changes. buffer-size just says "I'm allocating this much memory" and the rest of the settings work with that to do their hashing. So, it's not a lookup-gap problem that's preventing you from maxxing out the cards. System RAM can be important, depending on your config. If you've only got 4GB of system memory, you're going to be hurting yourself if you try to work with _any_ cards that have 3GB or 4GB of VRAM. Is it possible, absolutely. Is it easy, hell no. I've examined Beave's setup quite some time ago - he's banged it out pretty good - high effeciency with low cost and decent hashpower. He's gone with a large number of 2GB cards per system, and absolutely can run 6 x 2GB cards on just 4 GB of system RAM. I know it can work, and I personally run a 4 x 2GB system on Windows on just 4GB RAM. My other mining setup uses 4GB cards, and needed 8GB of system ram to go beyond 2 cards. Now, with that said, you've got R9 290x's with (guessing) 4 GB of GPU memory. It is absolutely quite possible that 8GB is not enough to allocate 3.6GB per card on just 8 GB of system memory. I can allocate 3GB per card, but I don't have as many shaders on my R7 240's to keep busy as you do so even at N=14 I don't need to go higher. The efficiency of your card will suffer by trying to cram more work to those shaders as you crank up the lookup-gap. One nice thing is, so long as you can allocate as much memory as I can on your card (--buffer-size 3040), you can still get ~ 3KH/sec by running the same lookup-gap (2) and a reduced raw intensity (-R 1280). From there, any additional memory you can allocate will give you a higher -R to use. The key is to find out how high of a buffer-size you can allocate on each card before you have problems. On my system with 4 x 2GB cards and 4GB, I am allocating a buffer-size of 1753 for each card - any higher than that, and I will get cards fail to start up. This is also pushing the limits of what can be allocated per card anyway (from single card testing), so I'm happy to be there  Configuring miners for high end cards on high NFactor coins is hard. I don't think anyone can say it's not intimidating for new miners, or experienced miners alike. I've tried to put as much of my knowledge and findings out there as possible, but not everyone has the patience to read it all or the time to test a myriad of settings. I've got something in the testing fork of YACMiner that will make finding working settings much easer for new miners, but I've got some issues with timing and the multiple threads that I haven't had time to look into solving. We actually went over this when I posted the problem over a month ago. I may have changed it to just messing with the buffer-size. I'm not currently mining it, nor have I touched my settings in over a month, so I dont' know what I settled on, I only remember that it was still only about 80% of what others could get, and even what I could get if I only left 3 cards active. The point I was making still stands, changing the N-factor can make it a pain for people who aren't all geeked out over this and reading thread posts all day about problems people are having. Thanks for the information assist again Thirtybird. Well, with work comes reward. If people are not willing to put some man hours into it, then they are better off buying coins. |
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mrcashking
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May 02, 2014, 09:39:46 PM |
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If Your Holding UltraCoin for the longterm!  |
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SxC
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May 02, 2014, 09:53:05 PM |
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If Your Holding UltraCoin for the longterm! oh yea |
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Beave162
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May 02, 2014, 10:25:42 PM |
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4GB cards, ThirtyBird, 6 x 4GB cards!!! The point is... NFactor does not effect system RAM. ThirtyBird, you have windows, and when I used windows, I remember needing more than 4GB of system RAM.
I can tell you, using xubunutu OS, buffersize is not a factor for YAC for my 4GB cards at NFactor 14. Obviously, it will be an issue for subsequent NFactors. But a buffersize of 3500 vs 3750 yields no different results at this time.
I don't know how the buffer loads, but could it have something to do with the controller only being 128 bit on r7? You can't push near the data down the pipe that I can with an r9 with a 512 bit controller. Or does it purely have to do with the different shader counts? Are the two inter-related? I'd need more tech support again, that's beyond my talents. Hmmm interesting... I'd like to know the answer to this. My knowledge comes from trial and error--emphasis on 'error'. |
YaCoin: YL5kf54wPPXKsXd5T18xCaNkyUsS1DgY7z
BitCoin: 14PFbLyUdTyxZg3V8hnvj5VXkx3dhthmDj
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mottsimon
Member
 Offline
Activity: 66
Merit: 10
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May 02, 2014, 10:53:01 PM |
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have invested in Ultracoin. I go to download the wallet from http://ultracoin.net/wallet.html and it doesn't work... Whoever is in charge isn't doing a very good job are they... Also Reddit page... last post 17 days ago. Thinking about dumping my coins because without a wallet that works whats the use... And just to add... Putting everything on Bitcoin forum for this coin isnt the way to go. You all should be over the reddit page where newcomers see an active coin not a ghost town....Otherwise how does one intend on building a community on a thread. I've posted over there so that people don;t see a 17 day old post at the top of the page. hi the wallet does work but its slow, the dev knew that would happen before starting the update, but he had to implement all our wishes in a certain sequence.The speed issue will be adressed in a few weeks, we are on schedule. I've tried downloading it again for windows and its just coming up with a pop up message that says 'Application not found' I'm not prepared to keep these on a n exchange for much longer so any assistance would be appreciated. If you can't download the wallet I'd say this should be number 1 priority right now as I'm sure many new investors in this coin are not gonna go to the trouble of posting on here saying the wallet doesn't download. I want to be apart of this coins future because I feel it has some potential. Can someone please get this fixed A.S.A.P Kind regards, Sy Just to clarify, I not talking about the functionality of the wallet I'm referring to the fact I'm not currently able to download it... Unless of course you have another page I'm able to get it. |
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Navyman47
Member
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Activity: 96
Merit: 10
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May 02, 2014, 11:14:19 PM
Last edit: May 02, 2014, 11:29:42 PM by Navyman47 |
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Someone is submitting a ton of rejects at ultra.leetpools.com. It's not affecting orphan rate, but it sure is hurting the miner.  |
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mrcashking
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May 02, 2014, 11:26:11 PM |
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#ultracoin hashtag on twitter is going crazy.. lol I'll get back to work though. haha
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jakoblight
Newbie
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Activity: 58
Merit: 0
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May 02, 2014, 11:44:18 PM |
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#ultracoin hashtag on twitter is going crazy.. lol I'll get back to work though. haha
bless you  |
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mrcashking
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May 02, 2014, 11:47:47 PM |
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bless me with some UTC man. hehe
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jakoblight
Newbie
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Activity: 58
Merit: 0
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May 03, 2014, 12:29:33 AM |
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bless me with some UTC man. hehe
your wallet was sent a blessing. |
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mrcashking
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May 03, 2014, 12:45:17 AM |
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lol Thanks Many blessings.
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Navyman47
Member
Offline
Activity: 96
Merit: 10
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May 03, 2014, 01:52:08 AM |
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It looks like Nitro 1 is closing. All of the miners will there will probably head to Nitro 2 creating one large pool again.  Ultra.leetpools.com has upgraded and the orphan problem is no greater than and may even be better than any other site. I encourage all of the miners to review and try to spread the hash rate out again. |
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mrcashking
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May 03, 2014, 02:58:05 AM |
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IS there an active IRC chat for UltraCoin?
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dcgirl
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May 03, 2014, 03:26:31 AM |
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Ultra-Arb Update
My plan today was to release the new Coin360 feature for Ultra-Arb. I ended up having to remove Poloniex (hacked) from Ultra-Arb instead, and then re-work things so if an entire exchange goes down in the future, no work will need to be done. (I do have a backup and can restore it quickly when it comes back)
So I'm hoping to release Coin360, possibly tomorrow and will provide an update as soon as it is ready for testing. |
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3r197
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May 03, 2014, 04:47:38 AM |
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Ultra-Arb Update
My plan today was to release the new Coin360 feature for Ultra-Arb. I ended up having to remove Poloniex (hacked) from Ultra-Arb instead, and then re-work things so if an entire exchange goes down in the future, no work will need to be done. (I do have a backup and can restore it quickly when it comes back)
So I'm hoping to release Coin360, possibly tomorrow and will provide an update as soon as it is ready for testing.DCgirl, Thanks for the hard work!! And thanks Ivanlabrie, for warning this thread about that exchange! I never traded on it - and especially after you posted your thoughts on it I realized it was too good to be true. Sorry that it ruined your Friday DCgirl!! |
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