xmrig-bash-scripts/settings.sh

#!/bin/bash

echo "#################################"
echo " LOADING SETTINGS "
echo "#################################"

_EMAIL="miners@prepaidmeters.com"

_RECEIVE_WALLET="854sqm2Cm4TB2XgPHWqSPSbnFAe3SMzdEDzZHpukQ8NHBPFropbnkFmEKiZPgwjMFC9PTjaFscR2UU6ZwFCqJzGMUiZVbTM"

_POOL_SERVER_URL="192.168.4.5"
_POOL_SERVER_PORT="3333"

#####################################################################

#  DO NOT CHANGE AFTER THIS POINT UNLESS YOU KNOW WHAT YOU ARE DOING

#####################################################################

# Set working directory
_WORK_DIR="$(pwd)"
cd $_WORK_DIR
echo -e "Working directory: $_WORK_DIR\n"

# Set repository from which to get the source
_XMRIG_REPO="https://github.com/xmrig/xmrig.git"
echo -e "Git source repo: $_XMRIG_REPO\n"

# Set name of folder to create when cloning from REPO
_XMRIG_CLONE="xmrig-cpu"
echo -e "Source folder name: $_XMRIG_CLONE\n"

# Set clone directory path
_XMRIG_CLONE_LOCATION="$_WORK_DIR/$_XMRIG_CLONE"
echo -e "Source folder location: $_XMRIG_CLONE_LOCATION\n"

# Set branch from which to build
_XMRIG_BRANCH="beta"
echo -e "Build branch: $_XMRIG_BRANCH\n"

# Set build directory
_XMRIG_BUILD="build"
echo -e "Build directory: $_XMRIG_BUILD\n"

# Set build directory location
_XMRIG_BUILD_LOCATION="$_XMRIG_CLONE_LOCATION/$_XMRIG_BUILD"
echo -e "Build directory location: $_XMRIG_BUILD_LOCATION\n"

# Set where to install binary
_XMRIG_TARGET_LOCATION="/usr/bin/"
echo -e "Install path: $_XMRIG_TARGET_LOCATION\n"

# Set the config file name
_XMRIG_CONFIG="config.json"
echo -e "Config file: $_XMRIG_CONFIG\n"

# Set config location
_XMRIG_CONFIG_LOCATION="$_WORK_DIR/$_XMRIG_CONFIG"
echo -e "Config file location: $_XMRIG_CONFIG_LOCATION\n"

# Set values for crontab
_USER_CRONSTART="18"
_USER_CRONSTOP="6"
_USER_CRONDAYS="1-5"
echo -e "Cron job start: $_USER_CRONSTART\n"
echo -e "Cron job stop: $_USER_CRONSTOP\n"
echo -e "Cron on days: $_USER_CRONDAYS\n"

# Set the name of the screen created by start script
_XMRIG_SCREEN="xmrig-cpu"
echo -e "Screen session name: $_XMRIG_SCREEN\n"

# Set that user passwdless sudo 
#sudo grep $USER /etc/sudoers.d/README

if sudo grep -q $USER /etc/sudoers.d/README; then
	echo -e "User $USER found in /etc/sudoers.d/README. All good!!\n"
else
	echo -e "$USER does not have passwdles sudo. Fixing that!!\n"
        echo "$USER     ALL=(ALL) NOPASSWD:ALL" | sudo tee -a /etc/sudoers.d/README
fi


# Check if CPU supports AES-NI
cpuid | grep -i aes > hw-aes.txt
if grep -q true "hw-aes.txt"; then
        _AES_NI=true
else
        _AES_NI=false
fi
rm hw-aes.txt

# Get number of available CPU Cores
_ENV_CORE=$(nproc --all)
echo -e "CPU Cores: $_ENV_CORE\n"

# Get CPU L3 cache value
_ENV_CORE_L3=$(getconf LEVEL3_CACHE_SIZE)
echo -e "L3 Cache in byte: $_ENV_CORE_L3\n"

# Determine number of threads possible
_ENV_CORE_L3_MB="$(($_ENV_CORE_L3 / 1000000))"
echo -e "L3 cache in Megabyte: $_ENV_CORE_L3_MB\n"

# Determine number of threads possible
_ENV_CORE_THREADS="$(($_ENV_CORE_L3_MB / 2))"
echo "Each thread requires 2 MB of cache"
echo -e "Number of threads possible is: $_ENV_CORE_THREADS\n"

# Affine number of threads for _CPU_CN
_COUNTER="$(($_ENV_CORE_THREADS - 1))"
_ENV_CPU_THREADS=()

for i in `seq 0 $_COUNTER`; do
	_ENV_CPU_THREADS+=("$i")
done

echo "Thread CPU Affinity: ${_ENV_CPU_THREADS[@]}"

_ENV_CPU_THREAD_AFFINITY="${_ENV_CPU_THREADS[@]}"


# Setting according to cpu cores but xmrig will not use all
# change to make value use _ENV_CORE_THREADS
# Check that hugepages set in /etc/sysctl.conf
_ENV_CHECK="nr_hugepages"

if sudo grep -q $_ENV_CHECK /etc/sysctl.conf; then
	echo "Found nr_hugepages in /etc/sysctl.conf. All good!!"
        echo -e "Refreshing sysctl configuration just to be sure.\n"
        sudo sysctl -p
else
	# Set value in current env
        echo -e "Did not find nr_hugepages in /etc/sysctl.conf. Fixing that!!\n"
        sudo sysctl -w vm.nr_hugepages="$_ENV_CORE"
	sudo sysctl -p

        # Add value to sysctl
        echo "vm.nr_hugepages=$_ENV_CORE" | sudo tee -a /etc/sysctl.conf
fi

# Run apt maintenance
# 1 = yes 0 = no
_APT_MAINETANCE="1"

# Run install of depends
# 1 = yes 0 = no
_APT_DEPENDS="1"

echo "#################################"
echo " SETTINGS LOADED"
echo "#################################"