An (even more) optimized version of cpuminer (pooler's cpuminer, CPU-only)

[minerja]

My system is as follows: 

400GB free.
my RAM is 8GB
Intel Core i5-4210U CPU @ 1.70GHz   2.40 GHz
Bitcoin Client Software and Version Number: V0.20.1
Operating System: Windows 10 (64)I already have bitcoin core running on this laptop.


I appreciate your help in this matter. I would like to run a CPU Bitcoin miner on my laptop for a few hours- I know I will not earn anything, but I'm keen to do some mining.

I downloaded Poolers CPU miner from Github and used this instructional video (https://youtu.be/kFudfJ7fTrI) on how to set it up.

Please bear in mind that  I'm not a programmer or coder, just a guy with an interest in Bitcoin with some superficial knowledge on computing who is eager to learn.

I switched the antivirus off and I was able to run the "minerd.exe" program using the CMD. 

When I run the program, I get this error message:

[2021-01-15 20:25:11] HTTP request failed: Failed to connect to 127.0.0.1 port 13000: Connection refused  

I'm not sure why this is happening.

I am connected to the internet. 
I switched my VPN off in case it was the cause.
I'm running Bitcoin Core and it has multiple connections and is synched up to date.

 
The configuration file "Bitcoin.conf" is located within the "Bitcoin" folder in %AppData% and is as follows:

server=1
rpcuser=user
rpcpassword=password
rpcallowip=127.0.0.1
rpcport=13000 

I ran the "minerd.exe" program with the following command:
 
minerd.exe -a sha256d -O user:password -o 127.0.0.1:13000 --coinbase-addr=""xxxxxxx bitcoing address xxxxxxx" -t 2

I also tried this:

minerd.exe -a sha256d -O user:password -o http://127.0.0.1:13000/ --coinbase-addr=bc1q5d7lfmu9esswxjayjyynk5tn8jd2w9x5jxn0n5 -t 2
 
On both occasions I get the error: HTTP request failed: Failed to connect to 127.0.0.1 port 13000: Connection refused    

Can you please give some guidance as to what I should do to resolve this issue??

Thank you very much.
Abu

--------------------------------------
2 issues

Issue 1
 need to change .conf
----------------------
server=1
rpcuser=user
rpcpassword=password
rpcallowip=127.0.0.1
rpcport=13000
----------------------
 change to
----------------------
server=1
listen=1
daemon=1
rpcuser=user
rpcpassword=password
rpcallowip=127.0.0.1
rpcport=13000
----------------------

This will now work for most solo mining (sometimes --coinbase-addr=bc1q5d7lfmu9esswxjayjyynk5tn8jd2w9x5jxn0n5 helps sometimes fails - try both ways)

HOWEVER
issue 2

You can no longer solo mine to the BTC wallet. I cannot remember the version but they removed the rpc function, i think from version 16 onwards.
If you want to solo mine, it will have to be another coin. (Unless a solo pool for BTC exists)

Are you just wanting to learn how to solo mine? If so i can probably find an old worthless coin that still syncs and  is cpu minable, just so you can see the process.

[JayDDee]

You can no longer solo mine to the BTC wallet.

You're thinking of the mining software built in to the wallet, that no longer exists. You can still mine solo using RPC,
it's required for any mining to be possible. It's just futile to do so with a CPU.

I think the user's problem is the firewall, Port 13000 needs to be opened for local clients.

[Abuliglig]

You can no longer solo mine to the BTC wallet.

You're thinking of the mining software built in to the wallet, that no longer exists. You can still mine solo using RPC,
it's required for any mining to be possible. It's just futile to do so with a CPU.

I think the user's problem is the firewall, Port 13000 needs to be opened for local clients.

Can you kindly tell me how I open the 1300 Port, please?
I know it's futile, but still want to try

[minerja]

You can no longer solo mine to the BTC wallet.

You're thinking of the mining software built in to the wallet, that no longer exists. You can still mine solo using RPC,
it's required for any mining to be possible. It's just futile to do so with a CPU.

I think the user's problem is the firewall, Port 13000 needs to be opened for local clients.

Hi Jaydee....

I have tried using you're miner...works with BTC 16 and lower, but not higher

[JayDDee]

You can no longer solo mine to the BTC wallet.

You're thinking of the mining software built in to the wallet, that no longer exists. You can still mine solo using RPC,
it's required for any mining to be possible. It's just futile to do so with a CPU.

I think the user's problem is the firewall, Port 13000 needs to be opened for local clients.

Can you kindly tell me how I open the 1300 Port, please?
I know it's futile, but still want to try

Configuring your firewall is not a mining issue and it depends on the OS you're using. Do a little research,
it shouldn't be too hard to find tutorials and howtos.

[JayDDee]

Hi Jaydee....

I have tried using you're miner...works with BTC 16 and lower, but not higher

I don't know what you mean, follow up in my thread.

[Abuliglig]

You can no longer solo mine to the BTC wallet.

You're thinking of the mining software built in to the wallet, that no longer exists. You can still mine solo using RPC,
it's required for any mining to be possible. It's just futile to do so with a CPU.

I think the user's problem is the firewall, Port 13000 needs to be opened for local clients.

Can you kindly tell me how I open the 1300 Port, please?
I know it's futile, but still want to try

Configuring your firewall is not a mining issue and it depends on the OS you're using. Do a little research,
it shouldn't be too hard to find tutorials and howtos.

Thank you for this, I'll look it up.

[Abuliglig]

You can no longer solo mine to the BTC wallet.

You're thinking of the mining software built in to the wallet, that no longer exists. You can still mine solo using RPC,
it's required for any mining to be possible. It's just futile to do so with a CPU.

I think the user's problem is the firewall, Port 13000 needs to be opened for local clients.

Can you kindly tell me how I open the 1300 Port, please?
I know it's futile, but still want to try

Configuring your firewall is not a mining issue and it depends on the OS you're using. Do a little research,
it shouldn't be too hard to find tutorials and howtos.

I have looked up how to get the firewall to allow the 13000 port, but do I set it for Inbound or Outbound traffic or for both?

Thank you
Abu.

[JayDDee]

I have looked up how to get the firewall to allow the 13000 port, but do I set it for Inbound or Outbound traffic or for both?

Thank you
Abu.

Short answer, both.

Outbound is for clients and is usually allowed by default.
Inbound is for servers and should only be allowed under strict conditions.

[minerja]

You can no longer solo mine to the BTC wallet.

You're thinking of the mining software built in to the wallet, that no longer exists. You can still mine solo using RPC,
it's required for any mining to be possible. It's just futile to do so with a CPU.

I think the user's problem is the firewall, Port 13000 needs to be opened for local clients.

I have just tried this with wallet 20.1 and i can't get it to work either...works perfect with Bitcoin Wallet 16
C:\Users\Miner_NVMe\Crypto\0 Miners\cpuminer-opt-3.15.4-windows>cpuminer-zen -a sha256d -o http://127.0.0.1:8332 -u xxxx
 -p xxxx -t 1 --coinbase-addr=aQimFGHgkiyRQMtTFEJ9GnCFHipT1AQMcy

         **********  cpuminer-opt 3.15.4  ***********
     A CPU miner with multi algo support and optimized for CPUs
     with AVX512, SHA and VAES extensions by JayDDee.
     BTC donation address: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT

CPU: AMD Ryzen 7 1800X Eight-Core Processor
SW built on Dec 15 2020 with GCC 9.3.0
CPU features:  AVX2    AES SHA
SW features:   AVX2    AES SHA
Algo features: AVX2

Starting miner with AVX2...

[2021-01-16 18:48:07] CPU affinity [!!!!!!!!!!!!!!!!]
[2021-01-16 18:48:07] 1 of 16 miner threads started using 'sha256d' algorithm
[2021-01-16 18:48:07] Miner thread priority 0 (nice 19)
[2021-01-16 18:48:08] Empty data received in json_rpc_call.
[2021-01-16 18:48:08] getblocktemplate failed, falling back to getwork
[2021-01-16 18:48:08] Empty data received in json_rpc_call.
[2021-01-16 18:48:08] json_rpc_call failed, retry after 10 seconds
[2021-01-16 18:48:18] Empty data received in json_rpc_call.
[2021-01-16 18:48:18] json_rpc_call failed, retry after 10 seconds

[JayDDee]

Does Pooler work? cpuminer-multi? GPU miners?
It looks like a protocol change in the Bitcoin RPC. It's not worth fixing even if I knew how,
CPU mining BTC is long obsolete.

[darkninja13]

can you make cpuminer version for mobile iOS, Android or Javascript web client?

[Luca_Blight]

I am trying to mine using this software like in the same way I use to mine other coins via CPU mining.

These are the steps I did:

1 - My bitcoin.conf file:


server=1
daemon=1
txindex=1

rpcport=8332
rpcuser=user
rpcpass=123456

2 - My conf file for minerd:

{
  "url": "http://127.0.0.1:8332",
  "userpass": "user:123456",
  "threads": "2",
  "algo": "sha256d",
  "debug": true,
  "no-longpoll": true,
  "no-stratum": true,
  "quiet": true
 }

3 - My Bitcoin core wallet is open, fully synchronized, and unlocked.

4 - I run the minerd with the command:

./minderd --config=./conf.json


But I get URL connection ERROR, what should I do different?

[minerja]

I am trying to mine using this software like in the same way I use to mine other coins via CPU mining.

These are the steps I did:

1 - My bitcoin.conf file:


server=1
daemon=1
txindex=1

rpcport=8332
rpcuser=user
rpcpass=123456

2 - My conf file for minerd:

{
  "url": "http://127.0.0.1:8332",
  "userpass": "user:123456",
  "threads": "2",
  "algo": "sha256d",
  "debug": true,
  "no-longpoll": true,
  "no-stratum": true,
  "quiet": true
 }

3 - My Bitcoin core wallet is open, fully synchronized, and unlocked.

4 - I run the minerd with the command:

./minderd --config=./conf.json


But I get URL connection ERROR, what should I do different?

in the bitcoin.conf add
rpcallowip=127.0.0.1
and change
rpcpass=123456 to rpcpassword=123456

[Luca_Blight]

I am trying to mine using this software like in the same way I use to mine other coins via CPU mining.

These are the steps I did:

1 - My bitcoin.conf file:


server=1
daemon=1
txindex=1

rpcport=8332
rpcuser=user
rpcpass=123456

2 - My conf file for minerd:

{
  "url": "http://127.0.0.1:8332",
  "userpass": "user:123456",
  "threads": "2",
  "algo": "sha256d",
  "debug": true,
  "no-longpoll": true,
  "no-stratum": true,
  "quiet": true
 }

3 - My Bitcoin core wallet is open, fully synchronized, and unlocked.

4 - I run the minerd with the command:

./minderd --config=./conf.json


But I get URL connection ERROR, what should I do different?

in the bitcoin.conf add
rpcallowip=127.0.0.1
and change
rpcpass=123456 to rpcpassword=123456

Thank you, the problem was with the rpcpass, the correct is rpcpassword. I had to set in my conf file for minerd the coinbase-addr, now it seems the minerd is running, however I only get something like this:

DEBUG: got new work in 1069 ms

Not sure if it is really working.

[minerja]

I am trying to mine using this software like in the same way I use to mine other coins via CPU mining.

These are the steps I did:

1 - My bitcoin.conf file:


server=1
daemon=1
txindex=1

rpcport=8332
rpcuser=user
rpcpass=123456

2 - My conf file for minerd:

{
  "url": "http://127.0.0.1:8332",
  "userpass": "user:123456",
  "threads": "2",
  "algo": "sha256d",
  "debug": true,
  "no-longpoll": true,
  "no-stratum": true,
  "quiet": true
 }

3 - My Bitcoin core wallet is open, fully synchronized, and unlocked.

4 - I run the minerd with the command:

./minderd --config=./conf.json


But I get URL connection ERROR, what should I do different?

in the bitcoin.conf add
rpcallowip=127.0.0.1
and change
rpcpass=123456 to rpcpassword=123456

Thank you, the problem was with the rpcpass, the correct is rpcpassword. I had to set in my conf file for minerd the coinbase-addr, now it seems the minerd is running, however I only get something like this:

DEBUG: got new work in 1069 ms

Not sure if it is really working.

You're not actually trying to mine BTC with a cpu are you?
With this level of difficulty, even if you were the only person mining, you MIGHT get a block in 1,000 years, but up against the current hashrate, you'd have more chance of living to be a 1000 year old than mine a block.

Not the way to learn cpu mining...

[Luca_Blight]

I am trying to mine using this software like in the same way I use to mine other coins via CPU mining.

These are the steps I did:

1 - My bitcoin.conf file:


server=1
daemon=1
txindex=1

rpcport=8332
rpcuser=user
rpcpass=123456

2 - My conf file for minerd:

{
  "url": "http://127.0.0.1:8332",
  "userpass": "user:123456",
  "threads": "2",
  "algo": "sha256d",
  "debug": true,
  "no-longpoll": true,
  "no-stratum": true,
  "quiet": true
 }

3 - My Bitcoin core wallet is open, fully synchronized, and unlocked.

4 - I run the minerd with the command:

./minderd --config=./conf.json


But I get URL connection ERROR, what should I do different?

in the bitcoin.conf add
rpcallowip=127.0.0.1
and change
rpcpass=123456 to rpcpassword=123456

Thank you, the problem was with the rpcpass, the correct is rpcpassword. I had to set in my conf file for minerd the coinbase-addr, now it seems the minerd is running, however I only get something like this:

DEBUG: got new work in 1069 ms

Not sure if it is really working.

You're not actually trying to mine BTC with a cpu are you?
With this level of difficulty, even if you were the only person mining, you MIGHT get a block in 1,000 years, but up against the current hashrate, you'd have more chance of living to be a 1000 year old than mine a block.

Not the way to learn cpu mining...

I know I will get nothing, but I just would like to see this program working as it was planned to work since the beggining of Bitcoin mining. I mine others coins via CPU, I guess it would be the same way for Bitcoin as well, so I just wanted to see this working.

[otacilioricardo]

Hello.

I tried to install CPUminer, on Windows 10, using the commands from the website below.

Website: https://github.com/pooler/cpuminer

Can this program be used on a cluster, with Debian? Text mode only.

I plan to create my Bitcoin farm. Programming is not a problem.
What initial steps?

Thanks.

Olá.

Tentei instalar o CPUminer, no Windows 10, usando os comandos do site abaixo.

Site: https://github.com/pooler/cpuminer

Esse programa pode ser usando em um cluster, com Debian? Somente modo texto.

Pretendo criar minha fazenda de Bitcoins. A programação não é problema.
Quais passos iniciais?

Obrigado.

[ArchOptic]

Can anyone please direct me to CURRENT working instructions on how to compile this? I've reached dead end after dead end of old obsolete links.

I would prefer to be able to build through VSCODE but I'd settle for anything at this point. win10 64 system.

EDIT: here are the instructions I see on github:

Basic Windows build instructions, using MinGW:
   Install MinGW and the MSYS Developer Tool Kit (http://www.mingw.org/)
      * Make sure you have mstcpip.h in MinGW\include
   If using MinGW-w64, install pthreads-w64
   Install libcurl devel (http://curl.haxx.se/download.html)
      * Make sure you have libcurl.m4 in MinGW\share\aclocal
      * Make sure you have curl-config in MinGW\bin
   In the MSYS shell, run:
      ./autogen.sh   # only needed if building from git repo
      LIBCURL="-lcurldll" ./configure CFLAGS="-O3"
      make

MSYS Developer Tool Kit version 1.01 for 32bit systems from many years ago is the latest I could find.
I manually downloaded the mstcpip.h file and placed in the proper folder
Searching for pthreads-w64 led to a whole pile of Google garbage.

Getting burnt out at this point, the installation of curl led to a whole new compilation rabbit hole and I am pretty frustrated now. I'm hoping for an idiot proof version of how to do this.

[mr.robot8]

how do i exclude the complete tuning at the first start? it takes about 2 hours and a half , i tried with no-tune true but it doesn't work, little help with scripts?