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Re: PhoenixMiner 4.7c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
Has anyone been able to get any further stability at 60mhs with Rx5700's? I haven't tried in a few weeks.
Do you mean 60mh/s with -opencllocalwork setting?
Yes exactly. It was a big deal when first discovered. Wondering if anyone has gotten some stability?
Sorry buddy but you are wrong. Plenty of people including me got our Rx5700s to 60mhs with the opencl and kernel options in Phoenix but with about 30-50% rejected share rates. My question to anyone else is if anyone has achieved stability above that since then?
Re: PhoenixMiner 4.7c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
Has anyone been able to get any further stability at 60mhs with Rx5700's? I haven't tried in a few weeks.
Do you mean 60mh/s with -opencllocalwork setting?
Yes exactly. It was a big deal when first discovered. Wondering if anyone has gotten some stability?
Re: PhoenixMiner 4.7c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
Also plenty of people with 4gb polaris cards are hitting dag limits. Im one of them. My 6 card rigs have been online for years until now. Issue started around dag 285 on ETC. ETH gave the same issues but later because the dag is slightly behind. I run windows 10 with Claymore connected to Nicehash dagger/hash pools. Virtual mem is set to 98gb. When the rigs were being fed ETH jobs they would mine no issue but as soon as the pool would switch to ETC it could not load the dag and would sit restarting the miner until Nicehash would switch back to ETH or whatever dagger/hash coin they are pushing. Did a couple Windows 10 reinstalls just to be sure I wasn't having any corruption or OS issues.
the case you describe here: dag is being generated - it gets written into the GPU memory, but then you need do free up all the memory to allocate another(different) DAG. there're many factors that can fail - intensive mem writes on overclocked and already heated GPU, memory free up and allocation can also fail easily, driver can be an issue and not only the miner app... so...it all however doesn't mean that you can mine eth on 2gb gpus - it's total nonsense. very simple: you need DAG(over 2 GB size) for algo to work, if somehow you manage to do segmentation and put only "relevant"(
) parts of the dag to the current calculations - you'll kill all possibilities of producing any meaningful results by constantly bottlenecking around reloading the dag parts into memory. in any case you are highly welcome to substantiate your incredible claims.
Look I get it. But it worked, in April, with the dag being over 2gb. It's quite possible that last bit of what you stated is what was going on. Card gave a very low hashrate, about 1.2mhs. I had set some settings in the bios I cant recall them except Legacy when installing the OS. Still working to figure out what I had done in April.
The following happened: the gpu(s) share the virtual mem address space with the host. Gpus already support using host-side mapped memory. Your allocation(s) were split across gpu mem pages and host mem pages by the driver. Many of your reads from the gpu was actually performed over PCIe, returning data from host mem. This is the cause of your crap hashrate.
Normally you see this behavior when youre juuuust pushing past the 4GB or 8GB limit, ie the full vram capacity on the gpu. The driver still allows the allocation but part(s) of the buffer will hit host side mem over PCIe, not proper gpu vram. Ive seen it a ton of times in CN mining when you push the nr allocated pads too hard. Seeing the driver allocating 60% of the DAG off-gpu is very surprising, but assuming youre not BSing, that is what happened. Still wont produce any useful hashrates so not really useful in the end anyway.
Sounds like a very probable explanation which is why it may not be working now since we are beyond the dag level I had found it working on. 1.2mhs is obviously pittiful so the concept and idea is more what I was bringing to the table. Appreciate the explanation and thorough response.
Re: PhoenixMiner 4.7c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
Also plenty of people with 4gb polaris cards are hitting dag limits. Im one of them. My 6 card rigs have been online for years until now. Issue started around dag 285 on ETC. ETH gave the same issues but later because the dag is slightly behind. I run windows 10 with Claymore connected to Nicehash dagger/hash pools. Virtual mem is set to 98gb. When the rigs were being fed ETH jobs they would mine no issue but as soon as the pool would switch to ETC it could not load the dag and would sit restarting the miner until Nicehash would switch back to ETH or whatever dagger/hash coin they are pushing. Did a couple Windows 10 reinstalls just to be sure I wasn't having any corruption or OS issues.
the case you describe here: dag is being generated - it gets written into the GPU memory, but then you need do free up all the memory to allocate another(different) DAG. there're many factors that can fail - intensive mem writes on overclocked and already heated GPU, memory free up and allocation can also fail easily, driver can be an issue and not only the miner app... so...it all however doesn't mean that you can mine eth on 2gb gpus - it's total nonsense. very simple: you need DAG(over 2 GB size) for algo to work, if somehow you manage to do segmentation and put only "relevant"(
) parts of the dag to the current calculations - you'll kill all possibilities of producing any meaningful results by constantly bottlenecking around reloading the dag parts into memory. in any case you are highly welcome to substantiate your incredible claims.
Look I get it. But it worked, in April, with the dag being over 2gb. It's quite possible that last bit of what you stated is what was going on. Card gave a very low hashrate, about 1.2mhs. I had set some settings in the bios I cant recall them except Legacy when installing the OS. Still working to figure out what I had done in April.
Re: PhoenixMiner 4.7c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
Also plenty of people with 4gb polaris cards are hitting dag limits. Im one of them. My 6 card rigs have been online for years until now. Issue started around dag 285 on ETC. ETH gave the same issues but later because the dag is slightly behind. I run windows 10 with Claymore connected to Nicehash dagger/hash pools. Virtual mem is set to 98gb. When the rigs were being fed ETH jobs they would mine no issue but as soon as the pool would switch to ETC it could not load the dag and would sit restarting the miner until Nicehash would switch back to ETH or whatever dagger/hash coin they are pushing. Did a couple Windows 10 reinstalls just to be sure I wasn't having any corruption or OS issues.
Re: PhoenixMiner 4.7c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
Yea I hear ya. Im not going to back down though. It worked with a 2gb and I am trying to replicate the results again. You may be a long time member but I have been mining since 2016 also and have worked with hardware directly since 2010. Not just posting to get any attention, could really care less because who the hell is going to use a 1.2mhs capable card? I have 24 5700s on top of my 24 p104s and polaris 470s. Not too worried about proving the point except that I was able to do it.
Ofcourse I expected to be called an idiot and told I'm wrong. You should try it your self too if you care enough. Hopefully I can replicate my results but the dag in April was way above 3gb so there is definitely something to be proven here. I will try on some other daggerhash coins that have lower dags but above 2gb but not approaching 4gb like Music or Pirl. Once I have results you will see what im talking about. I'm lazy too and spend my life at data centers 50 hours a week 8pm-6am. But ill get something to show soon.
Ofcourse I expected to be called an idiot and told I'm wrong. You should try it your self too if you care enough. Hopefully I can replicate my results but the dag in April was way above 3gb so there is definitely something to be proven here. I will try on some other daggerhash coins that have lower dags but above 2gb but not approaching 4gb like Music or Pirl. Once I have results you will see what im talking about. I'm lazy too and spend my life at data centers 50 hours a week 8pm-6am. But ill get something to show soon.
Re: PhoenixMiner 4.7c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
2Gb,4Gb DAG fix, need atleast 1 GPU large enough to generate DAG.
Recently realized in my farm that my 470 4Gb rigs, which were all 6 card setups at the time, were not generating the dag any longer for ETC and then soon after ETH dag approached whatever level it was that pushed my system over the limit. After a day of wondering what to do, I realized a 470 rig I have with 1 8Gb 580 in it was working fine with the other 5 cards being 470 4Gbs. I took apart one of my 580 8Gb rigs and replaced a card on one of the 470 rigs. Mined perfectly fine. Did this to the whole farm and split the gpus essentially so every 4Gb rig has atleast 1 8Gb card in it. As for now this works no issues. I have a p104-100 rig with 1 470 4Gb in it and same thing, generated dag and mines.
I tested this on 2Gb R7 200 gpus and works perfectly fine. Card generates the dag as long as the system has one available card that is able to fit the dag on it. This is identical to how the 470 rigs are operating.
The same goes for 470 4Gbs with rx 5700s and the same with the R7 200s with the rx 5700s.
It sounds like 4GB isn't enough for the DAG since the current DAG is 3.27GB for ETH or 3.34GB for ETC.
RedPandaMining recently posted a video on his Youtube Channel.
https://www.youtube.com/watch?v=xRIX5mpVntk
Recently realized in my farm that my 470 4Gb rigs, which were all 6 card setups at the time, were not generating the dag any longer for ETC and then soon after ETH dag approached whatever level it was that pushed my system over the limit. After a day of wondering what to do, I realized a 470 rig I have with 1 8Gb 580 in it was working fine with the other 5 cards being 470 4Gbs. I took apart one of my 580 8Gb rigs and replaced a card on one of the 470 rigs. Mined perfectly fine. Did this to the whole farm and split the gpus essentially so every 4Gb rig has atleast 1 8Gb card in it. As for now this works no issues. I have a p104-100 rig with 1 470 4Gb in it and same thing, generated dag and mines.
I tested this on 2Gb R7 200 gpus and works perfectly fine. Card generates the dag as long as the system has one available card that is able to fit the dag on it. This is identical to how the 470 rigs are operating.
The same goes for 470 4Gbs with rx 5700s and the same with the R7 200s with the rx 5700s.
It sounds like 4GB isn't enough for the DAG since the current DAG is 3.27GB for ETH or 3.34GB for ETC.
RedPandaMining recently posted a video on his Youtube Channel.
https://www.youtube.com/watch?v=xRIX5mpVntk
It would be awesome if it worked on 3gb Nvidia cards, but from what I have seen its only a fix for AMD cards with 4gb and below running on windows. I setup a windows box with a GTX 1070 and a couple gtx 3gb 1060s with no luck, then I tried a mixed mode setup with an 8gb AMD card as the main GPU with no luck as well. I figured it would not work with Nvidia cards below 3 gb, but I wanted to try it out for kicks. If anyone else tried and had luck let me know.
your discussion is seriously weird. it is impossible to load >3gb array into <3 GPU memory whatever tricks you may perform.
DAG - directed acyclic graph
"The Ethash algorithm expects the DAG as a two-dimensional array of uint32s (4-byte unsigned ints), with dimension (n × 16) where n is a large number. (n starts at 16777186 and grows from there.) Following the magic number, the rows of the DAG should be written sequentially into the file, with no delimiter between rows and each unint32 encoded in little-endian format."
"...calculating the PoW (Proof of Work) requires subsets of a fixed resource dependent on the nonce and block header. This resource (a few gigabyte size data) is called a DAG. The DAG is totally different every 30000 blocks (a 100 hour window, called an epoch) and takes a while to generate."
If you check out the comment I was responding to it mentioned that they are able to get 2 gb AMD cards to work provided they have one card in the mining rig with 8gb for the dag to populate on. I took them for their word and tried it with Nvidia but apparently it only works with AMD cards. I suppose I could find a 2gb AMD card and mix it with a 8gb card and see if what they say is true, but I do not really see what they would have to gain from making something like that up.
cannot tell you anything about "what they would have to gain" but that's really not that critical. it all sounds like confusing horseshit starting from "realization" of 4gb gpus "not generating the dag any longer"
@Bittap So you are saying that it's you who started this crazy claim... cool. Care to elaborate on the details? maybe screenshoots of 2gb gpu hashing eth? lol.
Yea it was me. I'm sorry about how unorganized or legitimate it may seem. Its mostly a realization after Claymore 14.7 hit 299 and my 4gb Polaris cards started having dag issues. I tried each of my 4gb rigs with a 580 8gb thrown in and it started working. Back in April I built a desktop build with a r7 200 2gb and a 570 8gb for my self. It no longer exists because I dismantled it after 2 months. Now I cant get the r7 200 to work the way it did again. I'm still troubleshooting on my free time see if I can replicate the results. I want to show it off. I feel stupid saying it worked and no proof. But the build was a Msi z270a with a Kaby Celeron and 8gb of ram. Windows was installed in Legacy mode. I found that be crucial. UEFI mode is better for newer boards, pcie accessories, and mining but I I was forced to use legacy because the 570s did not like working together with the r7 200 in UEFI. It worked like a charm in Legacy. The r7 took about 50 seconds to load the dag and it gave a PITIFUL 1.2mhs. But it worked. As much hate as I'm getting over this I'm trying to replicate the results with my little free time. When I do I will be posting on Reddit and here with screen shots. Hope this helps clear a little confusion. Cheers.
Re: PhoenixMiner 4.7c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
2Gb,4Gb DAG fix, need atleast 1 GPU large enough to generate DAG.
Recently realized in my farm that my 470 4Gb rigs, which were all 6 card setups at the time, were not generating the dag any longer for ETC and then soon after ETH dag approached whatever level it was that pushed my system over the limit. After a day of wondering what to do, I realized a 470 rig I have with 1 8Gb 580 in it was working fine with the other 5 cards being 470 4Gbs. I took apart one of my 580 8Gb rigs and replaced a card on one of the 470 rigs. Mined perfectly fine. Did this to the whole farm and split the gpus essentially so every 4Gb rig has atleast 1 8Gb card in it. As for now this works no issues. I have a p104-100 rig with 1 470 4Gb in it and same thing, generated dag and mines.
I tested this on 2Gb R7 200 gpus and works perfectly fine. Card generates the dag as long as the system has one available card that is able to fit the dag on it. This is identical to how the 470 rigs are operating.
The same goes for 470 4Gbs with rx 5700s and the same with the R7 200s with the rx 5700s.
It sounds like 4GB isn't enough for the DAG since the current DAG is 3.27GB for ETH or 3.34GB for ETC.
RedPandaMining recently posted a video on his Youtube Channel.
https://www.youtube.com/watch?v=xRIX5mpVntk
Recently realized in my farm that my 470 4Gb rigs, which were all 6 card setups at the time, were not generating the dag any longer for ETC and then soon after ETH dag approached whatever level it was that pushed my system over the limit. After a day of wondering what to do, I realized a 470 rig I have with 1 8Gb 580 in it was working fine with the other 5 cards being 470 4Gbs. I took apart one of my 580 8Gb rigs and replaced a card on one of the 470 rigs. Mined perfectly fine. Did this to the whole farm and split the gpus essentially so every 4Gb rig has atleast 1 8Gb card in it. As for now this works no issues. I have a p104-100 rig with 1 470 4Gb in it and same thing, generated dag and mines.
I tested this on 2Gb R7 200 gpus and works perfectly fine. Card generates the dag as long as the system has one available card that is able to fit the dag on it. This is identical to how the 470 rigs are operating.
The same goes for 470 4Gbs with rx 5700s and the same with the R7 200s with the rx 5700s.
It sounds like 4GB isn't enough for the DAG since the current DAG is 3.27GB for ETH or 3.34GB for ETC.
RedPandaMining recently posted a video on his Youtube Channel.
https://www.youtube.com/watch?v=xRIX5mpVntk
Just fyi i'm alec22ross or AKA https://www.bittapfinancial.com. That is me you are quoting. Hope you are not acting like you wrote that about your farm since you copied it word for word from my reddit post.
https://www.reddit.com/r/gpumining/comments/d9csi9/2gb4gb_dag_fix_need_atleast_1_gpu_large_enough_to/
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux)
Really doesn't matter. You just need to have at least 1 card that is large enough and able to load the dag alone. I have 6 rigs this is functioning on, all were 6x Rx470 4GB rigs, but then I took out a card in each and replaced each slot with an Rx580 8GB once I discovered the fix. Distributed the set ups so every 4GB rig has at least one 8GB card to load the dag. I have not confirmed if an Nvidia card can assist another Nvidia card in this way, I don't any under 8GB however the even stranger thing about all of this is that a p104-100 8GB will assist my Rx470 4GBs and they will mine.
You will need at least 1 GPU to load the DAG plus the Windows data system files on the GDDR. But you will still need to have at least 4GB for the other GPUs. What I mean is that you can't have 1 GPU that has 8GB GDDR and have the rest being 3GB GDDR GPUs. It won't work I tried.
The way the Claymore software works is that it needs to load the entire DAG onto each and every GPU. It doesn't just load it only on the first GPU. You can look at the resource history monitor and you will see that the memory for each GPU is completely used up. So this will still only work with any GPUs greater than 4GB but anything 3GB or less is obsolete in mining ETH right now.
What cards are you testing? This may not work for Nvidia 3Gbs as I stated I only got it to work with a Nvidia p104 assisting a Rx470 4Gba.
The way I discovered this fix was half my farm, about 6 rigs with all 4Gb cards, went down and stopped generating the dag on both eth and etc. I realized that one of my mixed rigs with a 8gb worked fine. I tested it by removing the 8Gb. All of sudden it didn't mine. I tested this on the other rigs by dismantling a 580 8Gb rig and distributing the cards to each of the 470 rigs. This works flawlessly.
As for my r7 200 series I have a desktop build running in Windows 10 legacy mode. That build I can install my 580 8Gb or other Polaris cards with enough memory for dag, and sit the R7 200 next to it. The dag loads perfectly fine and mines. Takes about 57 seconds to load the dag and mines at a pitiful 1.2Mhs.
I noticed this a few years back as I mentioned but now with the dag approaching some cards thresholds again and clearly mine, I rehashed this. (pun intended)
Legacy and UEFI mode have alot to do with how pcie slots will interact with you cpu and motherboards chipset. UEFI is going to give you the latest pcie options and most lanes. Legacy is a much older way of installing Windows and restricts pcie lanes available and other features included in the bios and operating system.
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux)
Really doesn't matter. You just need to have at least 1 card that is large enough and able to load the dag alone. I have 6 rigs this is functioning on, all were 6x Rx470 4GB rigs, but then I took out a card in each and replaced each slot with an Rx580 8GB once I discovered the fix. Distributed the set ups so every 4GB rig has at least one 8GB card to load the dag. I have not confirmed if an Nvidia card can assist another Nvidia card in this way, I don't any under 8GB however the even stranger thing about all of this is that a p104-100 8GB will assist my Rx470 4GBs and they will mine.
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux)
That was me on Reddit. Cant get my old Bitcointalk account so made one with my business name but yea this absolutely is true now as mentioned by you. Im getting ready to film a youtube sometime this week and put it up on this topic, demo it. Here is a link to my website and youtube.
https://www.bittapfinancial.com/
https://www.youtube.com/watch?v=qnOmZzE8MsU
https://www.bittapfinancial.com/
https://www.youtube.com/watch?v=qnOmZzE8MsU