Yes it's normal and dependent on the algo. It means cpuminer-opt has no optimizations for scrypt algo.
Oh, OK, it's just it previously stated SSE2. On another subject, I tried 3.7.5 windows binary in my desktop (Ryzen 1700) and all executables fail to start - it states: "thread xx (random): Scrypt buffer allocation failed Fail: thread xx failed to initiate. I noted the change in feature reporting in the release announcement. You're out of memory. You only have enough memory for xx -1 threads. Thanks, fiddling around with virtual memory settings allowed it to run. Performance is still very bad with Ryzen CPU using Scrypt. At same level as a Xeon Westmere-EP 6 cores @ 2.4 GHz. Is this really the CPU fault, or could cpuminer-opt be more optimized for Zen architecture? Thanks and keep up the good work! Virtual memory is slow, you need the real thing. I have 16 Gb of Ram, it shouldn't be a problem. I had a fixed page file size, I set it to auto, and it worked. Maybe a bug? You don't have enough RAM to run that many threads without using VM. Using VM is slow. Stop arguing and do the math: N*threads. How many RAM per thread? So if I run less threads could it be actually faster? Sorry to annoy you with so many questions. PS: in task manager cpuminer has 11.5 Gb RAM allocated. |
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Yes it's normal and dependent on the algo. It means cpuminer-opt has no optimizations for scrypt algo.
Oh, OK, it's just it previously stated SSE2. On another subject, I tried 3.7.5 windows binary in my desktop (Ryzen 1700) and all executables fail to start - it states: "thread xx (random): Scrypt buffer allocation failed Fail: thread xx failed to initiate. I noted the change in feature reporting in the release announcement. You're out of memory. You only have enough memory for xx -1 threads. Thanks, fiddling around with virtual memory settings allowed it to run. Performance is still very bad with Ryzen CPU using Scrypt. At same level as a Xeon Westmere-EP 6 cores @ 2.4 GHz. Is this really the CPU fault, or could cpuminer-opt be more optimized for Zen architecture? Thanks and keep up the good work! Virtual memory is slow, you need the real thing. I have 16 Gb of Ram, it shouldn't be a problem. I had a fixed page file size, I set it to auto, and it worked. Maybe a bug? |
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Yes it's normal and dependent on the algo. It means cpuminer-opt has no optimizations for scrypt algo.
Oh, OK, it's just it previously stated SSE2. On another subject, I tried 3.7.5 windows binary in my desktop (Ryzen 1700) and all executables fail to start - it states: "thread xx (random): Scrypt buffer allocation failed Fail: thread xx failed to initiate. I noted the change in feature reporting in the release announcement. You're out of memory. You only have enough memory for xx -1 threads. Thanks, fiddling around with virtual memory settings allowed it to run. Performance is still very bad with Ryzen CPU using Scrypt. At same level as a Xeon Westmere-EP 6 cores @ 2.4 GHz. Is this really the CPU fault, or could cpuminer-opt be more optimized for Zen architecture? Thanks and keep up the good work! |
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Hi,
i have downloaded from github. compiled it. and get this:
********** cpuminer-opt 3.7.5 ***********
A CPU miner with multi algo support and optimized for CPUs
with AES_NI and AVX2 and SHA extensions.
BTC donation address: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT
CPU: Intel(R) Xeon(R) CPU E5-2623 v4 @ 2.60GHz.
SW built on Dec 11 2017 with GCC 5.4.0.
CPU features: SSE2 AES AVX AVX2.
SW features: SSE2 AES AVX AVX2 4WAY.
Algo features:.
Start mining with no optimizations.
why does it start without Algo features?
i run it with: ./cpuminer -a scrypt:1048576
thanks in advance.
best regards,
freeapp
I noticed it also with windows binary and same script. Is this normal? Yes it's normal and dependent on the algo. It means cpuminer-opt has no optimizations for scrypt algo. Oh, OK, it's just it previously stated SSE2. On another subject, I tried 3.7.5 windows binary in my desktop (Ryzen 1700) and all executables fail to start - it states: "thread xx (random): Scrypt buffer allocation failed Fail: thread xx failed to initiate. |
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Hi,
i have downloaded from github. compiled it. and get this:
********** cpuminer-opt 3.7.5 ***********
A CPU miner with multi algo support and optimized for CPUs
with AES_NI and AVX2 and SHA extensions.
BTC donation address: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT
CPU: Intel(R) Xeon(R) CPU E5-2623 v4 @ 2.60GHz.
SW built on Dec 11 2017 with GCC 5.4.0.
CPU features: SSE2 AES AVX AVX2.
SW features: SSE2 AES AVX AVX2 4WAY.
Algo features:.
Start mining with no optimizations.
why does it start without Algo features?
i run it with: ./cpuminer -a scrypt:1048576
thanks in advance.
best regards,
freeapp
I noticed it also with windows binary and same script. Is this normal? |
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Is this normal? Help a newbie here. I created a monero wallet 2 months ago to start mining. Now that I am almost being paid, I checked wallet adress, and it isn't what entered on pool miner configurations. After some googling, I went to https://xmr.llcoins.net/addresstests.html both are valid monero adresses, but suposedly "Netbyte + 10" should be the same and it isn't. What am I missing? Thanks. Which wallet did you use to generate an address? AFAIK, the only wallet I created 2 months ago... EDIT: no wait, I did create another wallet on my laptop. I really don't know why. I just restored the original wallet from backup. People, do backup your wallets. I was already sweating trying to understand this. |
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Is this normal? Help a newbie here. I created a monero wallet 2 months ago to start mining. Now that I am almost being paid, I checked wallet adress, and it isn't what entered on pool miner configurations. After some googling, I went to https://xmr.llcoins.net/addresstests.html both are valid monero adresses, but suposedly "Netbyte + 10" should be the same and it isn't. What am I missing? Thanks. |
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Is this normal? Help a newbie here. I created a monero wallet 2 months ago to start mining. Now that I am almost being paid, I checked wallet adress, and it isn't what entered on pool miner configurations. After some googling, I went to https://xmr.llcoins.net/addresstests.html both are valid monero adresses, but suposedly "Netbyte + 10" should be the same and it isn't. What am I missing? Thanks. |
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So, no solutions at all for OS X?
Clearly you haven't read the requirements. Yes I have, that's why I am asking. I´ve compiled it in Linux and also running windows binary on another computer. I already know it works beautifully in Linux and Windows. Being OS X a 64 bit *NIX OS, it should be possible to compile from source, or not? |
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I need scrypt for mining Verium.
Does it work? Could you share the binary?
Thanks.
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So, no solutions at all for OS X?
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Any binary for OS X or compiling instructions? Thanks.
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I'm having the same issue.
My transaction from myetherwallet to bittrex is pending mining for more than 12h.
Very disappointed.
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Coinbase.com is down. Anything related?
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I need a little help here. I modded all my cards BIOS with Polaris BIOS Editor 1.4 - RX 560, RX 570, RX 480, RX 580. All were successful, set all cards to 1200 Mhz core, 2000-2050 Memory and undervolted all of them. However, voltage settings on my MSI Radeon RX 580 ARMOR 8G OC seem to have a life of its own. Setting them on AMD Radeon settings or in MSI afterburner have no effect whatsoever. So I figured out to undervolt in BIOS, but despite this:  Voltage is still at defaut seting, going up to 1150 mV at 1200 Mhz when GPU hits 100%.- Any ideas?? Use PBE v.16 or higher. Thanks, I did voltage mod with PBE 1.6 and it seems to work. Running at 1050 max, stable until now. Maybe I'll try even lower. |
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I need a little help here. I modded all my cards BIOS with Polaris BIOS Editor 1.4 - RX 560, RX 570, RX 480, RX 580. All were successful, set all cards to 1200 Mhz core, 2000-2050 Memory and undervolted all of them. However, voltage settings on my MSI Radeon RX 580 ARMOR 8G OC seem to have a life of its own. Setting them on AMD Radeon settings or in MSI afterburner have no effect whatsoever. So I figured out to undervolt in BIOS, but despite this: Voltage is still at defaut seting, going up to 1150 mV at 1200 Mhz when GPU hits 100%.- Any ideas?? |
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 This. I had VRM on VRM #2 - poolinat0r.com on unconfirmed balance, and they just disapeared. How did this happen? |
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RX 480 + RX 580 + RX 570 here.
Newest AMD drivers do have equal performance to August blockchain drivers, but they aren't stable on my rig. Claymore's crashes often, even Firefox crashes, for god's sake.
Reverting to August drivers fixed it. Never had an issue with them.
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Hi there How to set core and memory clock in linux? I think it's not working. I have "./ethdcrminer64 -cclock 1200 -mclock 2000 (...)" in start.bash and I am getting only 11.8 Mh/s with a Radeon 560, which is comparable to default clocks in windows (got 13.3 with 1200 core / 2000 memory) Then again, I copied into a script #!/bin/bash
while true; do
cat /sys/kernel/debug/dri/0/amdgpu_pm_info;
sleep 5;
done And I see core 1300 Mhz and memory 1750 Mhz.... How to change core and mem clock? Thanks. |
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The Windows binaries are pretty bad on AMD, not so great on Intel either. You'll need Linux and compile your own to get the best
performance on any platform.
As far as scrypt algo goes, I haven't paid much attention to it due to the existance of scrypt ASICs. However the verium
version uses a different N factor that can't be mined with the scrypt ASIC.
The implementation in cpuminer-opt was taken from Pooler and I haven't (intentionally) changed it. You could try his version
to see if it gives better performance. I think cpuminer-multi also uses the same version. Their Windows binaries might be better.
Thanks. I could do that, install Linux in a secondary partition. Any recommended distro and compile instructions? PS: And for older CPU's like my 6-core Xeon E5645, will I see a difference in hashrate using Linux? Compile instructions are in RELEASE_NOTES. Ubuntu is favoured by many. I can't really coment on performance as I said I haven't paid much attention to this algo. But a native compile with a newer compiler can't hurt. Please post your results as I am curious also. I just did. It's consistently 14% faster in Linux (Xeon E5645), with compiled binary. That was with Mint 18.2. But I'm going to install Ubuntu 16.4.3 because I need blockchain drivers to mine ethereum, and I couldn't figure out how to install amdgpu pro drivers on Mint 18.2. |
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