Note that if you are plotting on a harvester that the p2 singleton or the pool contract address does not have to be on the harvester system. You can grab it off the main node and then use the address on the machine plotting.
The first phase generates all of your proofs of space by creating seven tables of cryptographic hashes and saving them to your temporary directory. Phase 2 back-propagates through the hashes, phase 3 sorts and algorithmically compress these hashes in the temporary directory while starting to build the final file and phase 4 completes the file and moves it into your final plot destination.
There are 4 phases when plotting Chia. Lets break these down
Phase 1
Phase 1 according to the link above creates 7 tables of cryptographic hashes and puts them in a temp directory. This phase is CPU intensive and is the only phase that takes advantage of multiple cores/threads. All the succeeding phases are single threaded. This phase also looks to use the most memory.
Phase 2
Phase 2 back propagates through the hashes, what this means exactly, I am not sure. This phase will use the most storage space. Phase 2 also seems to be a good time to start another plot if your plotting in parallel. Plotman by default starts another plot when a plot reaches phase 2:1 (:1 is a minor phase within phase 2)
Phase 3
Phase 3 sorts and compresses the hashes and starts building the final plot file. The total temp storage should decrease throughout the entire phase.
Phase 4
Phase 4 completes the plot file and moves it to the destination. It looks like if something happens with the destination you can manually move the 2.plot.tmp file to .plot and copy it to a destination file.
This is a basic script for starting the Chia Harvester on Ubuntu. You can download the script here or use the following commands to download with wget.
#!/bin/bash
# Script for starting the Chia Harvester
cd ~/chia-blockchain/
. ./activate
chia start harvester
sleep 5
if ( echo $(ps aux | grep -v grep | grep chia_harvester) | grep chia_harvester); then
echo "Harvester started"
else
echo "Looks like the harvester is not running, try manually checking and/or running the commands to figure out what is wrong."
fi
A Chia Harvest is a computer that farms Chia and connects back to a Master Node. You can almost think of it like the Master Node being a Pool and the harvesters as nodes on that “pool”. In this post we’ll talk about setting up a Chia Harvester on Ubuntu. Shouldn’t matter which version of Ubuntu. LTS or the latest should work fine.
Note: In the following commands we are assuming that the Chia directory is in your home “~/” directory on the harvester. Change the path if different.
Before we start you will need the ca directory from your Main/Master node uploaded or accessible to your Ubuntu harvester. You can get the CA directory from the following locations on Windows and Linux.
On Linux
~/.chia/mainnet/config/ssl/ca
On Windows
C:\User\username\.chia\mainnet\config\ssl\ca
You should be able to copy and paste the following path into Explorer to get to the correct directory.
%homepath%\.chia\mainnet\config\ssl\ca
Copy Chia ca directory
Copy this folder onto your Desktop, thumbdrive, network share, just some place you can access it.
Upload ca folder
You can use scp to upload the ca folder of the Harvester. In the following example we put the ca directory on our Windows desktop and we are uploading to our harvesters home directory.
scp -r Desktop\causer@192.168.1.5:~/
Activate Chia
The rest of the commands are run on the harvester. You can either ssh or physically log into it. If Chia was installed in a different directory, then you will need to change the path.
cd chia-blockchain . ./activate
Configure Harvester
You should be able to copy and paste all the following commands in, change the parts in bold as needed.
The –set-farmer-peer option is your main node’s ip address.
Should be all set. You can check the Main Node to verify that the harvester is connecting.
Important Notes: UPNP needs to be turned off. It can cause problems if there are multiple wallets running on a local network that both have upnp on.
Add your plot drive locations. We need something to harvest :)
Verify that the Linux user can write to the Chia Plot drives
The following command will give the ubuntu user write access to the drive. Change the path to your drive.
sudo chmod ugo+wx /media/username/your_drive
Creating Plots
Create plots by specifying the Farmer Public Key and the Pool Public Key. You can get these from the Main Node. Plan on adding info on how to retrieve that info soon.
Chia is a new kinda of Crypto Currency that instead of using PoW (Proof of Work) it uses Proof of Space and Time which ends up using hard drive space to “mine” farm.
Install Chia Blockchain
You can copy and paste all of these commands in a terminal.
The . ./activate command is needed to be able to run the chia commands. I believe it sources into the current shell so the commands work correctly.
Install Chia Blockchain Gui
After you have run the above commands, do the following to install the Chia Gui
chmod +x ./install-gui.sh ./install-gui.sh cd chia-blockchain-gui npm run electron &
Launching Gui after it is installed
In the future for launching the Gui you should be able to copy and paste the following commands in.
cd chia-blockchain . ./activate cd chia-blockchain-gui npm run electron &
You can also put all of the above commands into a bash shell script and then just run the script instead of having to run the commands all over again every time you want to launch the gui.
Power Consumption The power consumption seems to vary a bit between cards, some of them end up doing really well considering how old they are. Range: 75 – 92 W Average = ~84 W
Settings Core: 1100 V: 800 Mem : 2100
Average Mhs Per Watt : 0.36/Mhs Average Watts Per Mhs: 2.8 W
Profitability is about $3.68/day as of February 9, 2021
