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Alternate cryptocurrencies / Mining (Altcoins) / Re: Optiminer/Equihash 2.0.0 supporting Zcash, Bitcoin Gold, Minexcoin, Zero..
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on: November 14, 2017, 11:58:54 PM
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I've noticed that the miner consumes continiuesly all avaliable memory and than when it ends, the system hangs.
Good news: I think I have been able to reproduce the problem of increasing memory usage. Do you get a lot of stale shares? Bad news: Your CPU is likely too slow to fully unleash the mining powers of all your GPUs. The next version of optiminer will throttle the GPUs when it detects that the CPU cannot validate all the solutions found (there is no point in producing more solutions on the GPUs than the CPU can consume). Consider upgrading the CPU or mining something else on a subset of the GPUs. You can also try to run 2 instances of the miner with on two sets of GPUs (use -d to specify which ones), this might help if you have more than 2 cores as the miner only uses 2 threads for processing solutions. Also --pci-mode 0 might to not run out of memory with v2.0. |
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Optiminer/Equihash 2.0.0 supporting Zcash, Bitcoin Gold, Minexcoin, Zero..
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on: November 14, 2017, 10:06:50 PM
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I've noticed that the miner consumes continiuesly all avaliable memory and than when it ends, the system hangs.
I didn't notice no memory leak. top - 23:07:33 up 5:48, 3 users, load average: 8.65, 8.66, 8.59
Tasks: 210 total, 3 running, 207 sleeping, 0 stopped, 0 zombie
%Cpu(s): 82.3 us, 17.6 sy, 0.0 ni, 0.1 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 8043660 total, 2889492 used, 5154168 free, 53236 buffers
KiB Swap: 0 total, 0 used, 0 free. 1726772 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
7273 ethos 20 0 0.098t 2.038g 1.926g S 376.0 26.6 353:05.12 optiminer-zcash
2.038g RES seems rather high usage. Is that from the beginning like that? What cards? What driver? |
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Optiminer/Equihash 2.0.0 supporting Zcash, Bitcoin Gold, Minexcoin, Zero..
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on: November 14, 2017, 08:17:07 AM
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Minimum SM version is 61 for Nvidia cards. So, only never cards are supported at the moment.
Windows version will take a bit more time, probably in a month.
If you have stability problems please make sure that the cards do not overheat. Try to reduce the mem/core clocks.
All that the CPU does is verify the hash of the found equihash solutions. Because of the extreme solution rate achieved with equihash96/5 on multi-card rigs this by itself uses a significant amount of CPU resources. Higher intensity should reduce CPU usage a bit (fewer opencl calls needed).
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Optiminer/Equihash 2.0.0 supporting Zcash, Bitcoin Gold, Minexcoin, Zero..
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on: November 12, 2017, 01:16:12 AM
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Getting [2017-11-11 17:03:24.346] [info] Optiminer/Equihash 2.0.0 (C) Optiminer 2017
[2017-11-11 17:03:24.347] [info] Connecting to us1-zcash.flypool.org:3443.
[2017-11-11 17:03:24.480] [info] Using generic kernel code.
[2017-11-11 17:03:24.480] [info] Autodetected '--intensity 128' for device 0.
[2017-11-11 17:03:24.480] [info] [GPU0] Device info: {"id": "0/0" "name": "GeForce GTX 1080 Ti" "platform": "Nvidia" "driver": "384.90"}
[2017-11-11 17:03:24.520] [info] GPU0 Waiting for work from pool.
[2017-11-11 17:03:24.567] [info] TLS handshake with us1-zcash.flypool.org succeeded.
[2017-11-11 17:03:24.633] [info] Extranonce is '110bdb65a8'.
[2017-11-11 17:03:24.700] [info] Connected to us1-zcash.flypool.org:3443.
[2017-11-11 17:03:24.700] [info] Mining target is 0004189374bc6a7ef9db22d0e5604189374bc6a7ef9db22d0e5604189374bc6a
[2017-11-11 17:03:25.700] [info] Got new work.
[2017-11-11 17:03:25.700] [info] GPU0 Got work, start mining.
[2017-11-11 17:03:27.114] [warning] [GPU0] Share submission failed: Invalid solution!! (0 / 1)
[2017-11-11 17:03:28.271] [warning] [GPU0] Share submission failed: Invalid solution!! (0 / 2)
[2017-11-11 17:03:29.232] [info] Got new work.
[2017-11-11 17:03:30.724] [info] [GPU0] 5555.2 I/s 10485.4 S/s (5s)
[2017-11-11 17:03:30.903] [warning] [GPU0] Share submission failed: Invalid solution!! (0 / 3)
[2017-11-11 17:03:32.174] [warning] [GPU0] Share submission failed: Invalid solution!! (0 / 4)
[2017-11-11 17:03:32.719] [warning] [GPU0] Share submission failed: Invalid solution!! (0 / 5)
[2017-11-11 17:03:33.013] [warning] [GPU0] Share submission failed: Invalid solution!! (0 / 6)
using 1080Ti and -a equihash96_5. Strange, same card works for me Try driver version 381.22. |
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Optiminer/Zero v1.2.0 (AMD+NVIDIA GPU) Linux+Windows
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on: October 11, 2017, 07:43:27 AM
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Hey Optiminer, any chance you could fix the Windows miner to allow for multi-GPU configs (nVidia)? Currently it completely saturates the CPU, and ends up crashing the rigs within minutes...  Principally it should work with multiple NVidia CPUs. I suggest to try running it on Linux. Fixing the high CPU usage will require rewriting the kernel in CUDA which is a major change, so will take time. The miner only supports stratum mining at the moment. |
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55
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] ZERO - fork of Zcash with harder mining params
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on: September 22, 2017, 11:59:25 AM
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I would simply love a "proper" Zero/Nvidia/Windows Miner.
The current one has 100% CPU Load and (at least for me) it crashes consistently.
If I start an Instance with all 4 GPU it more or less crashes immediately after a few minutes.
When running one instance per GPU it can sometimes run for a day, or crash after an hour.
Win10 ltsb 2016 / 4gb ram / 4x 1080ti / 48gb page file / 384.94 drivers / 1600w PSU.
Its kinda sad as one 1080ti could do about 15Sols. Now im running a 7gpu 290x rig on zero (perfectly stable) and its doing around ~40.
As I understand it the high cpu load are wait cycles (so no real work) and has something to do with the way cuda on windows works.
To fix it opti would need to rewrite the whole miner (more or less). I understand that this is a major task, but isnt that exactly what devfee is for?
here you can write to him https://bitcointalk.org/index.php?topic=1896901.0best regards  I am also follwing here, so no need to cross-post everything ;-) The high CPU utilization is a problem with OpenCL implementation of Nvidia. It seems Nvidia does not *want* to fix this, maybe to push CUDA. Here is someone complaining about the issue in 2013:http://setiathome.berkeley.edu/forum_thread.php?id=72805 So, to fix this I will need to rewrite the kernel in CUDA which is a big change to the miner, essentially like rewriting half of the miner from scratch. While this is on my TODO list, it probably will not happen soon, sorry. I currently also only have a single nvidia card which means I cannot test any multi-card setup. |
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56
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Optiminer/Zero v1.2.0 (AMD+NVIDIA GPU) Linux+Windows
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on: September 22, 2017, 07:19:51 AM
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Hey optiminer, do you have any plans to create a 4GB nvidia version? Just curious, not here to badger about it. I'll just buy Zero instead if not I could release a 6GB version for nvidia. Would that help? The problem with a 4GB version is that it would be much slower. You can see this in the AMD version, the 4GB version runs about at half the speed. Yes I understand.. so really the solution is to upgrade my GPUs however I just don't want to do that right now because of cost. I am working with two GTX 970s so unfortunately 4GB would be my only option  I do appreciate your quick reply! The best thing to get some Zeros then is probably just buying them. The price still is really low as the coin is undervalued. |
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57
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Optiminer/Zero v1.2.0 (AMD+NVIDIA GPU) Linux+Windows
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on: September 21, 2017, 06:54:39 PM
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Hey optiminer, do you have any plans to create a 4GB nvidia version? Just curious, not here to badger about it. I'll just buy Zero instead if not I could release a 6GB version for nvidia. Would that help? The problem with a 4GB version is that it would be much slower. You can see this in the AMD version, the 4GB version runs about at half the speed. |
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58
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] ZERO - fork of Zcash with harder mining params
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on: August 09, 2017, 08:00:06 PM
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Is there maybe any prospect for an "optimized" zero nvidia windows miner?
What I mean in particular is the high cpu usage.
I can only run the zero miner with 1 device each. Running 2 instances for 2 1080ti and cpu is 100%.
When I close one instance the other speeds up a little bit, so it even seems to bottleneck the hashing performance.
win7 x64, 382.33 driver
CPU should not be bottleneck it just spins on a busy wait all the time. Reducing the CPU usage would require to rewrite the mining algorithm in CUDA which is a major effort. |
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