emeth-node

Prerequisite

OS configuration

A swap size is recommended to be set to at least the same size of RAM.

node & npm version

$ node -v
v12.18.3

$ npm -v
6.14.6

python setup

Install python and pip

Example (Ubuntu):

$ sudo add-apt-repository ppa:deadsnakes/ppa
$ sudo apt update
$ sudo apt install python3.6 python3-pip

GPU seetup

Check CUDA

$ nvidia-smi

Install CUDA

$ wget http://developer.download.nvidia.com/compute/cuda/11.0.2/local_installers/cuda_11.0.2_450.51.05_linux.run
$ sudo sh cuda_11.0.2_450.51.05_linux.run
$ export PATH=/usr/local/cuda-11.0/bin:$PATH
$ export LD_LIBRARY_PATH=/usr/local/cuda-11.0/lib64:$LD_LIBRARY_PATH

Install cudann

Example:

// It varies depending on the CUDA version
// In this example, we install cudann 8.0.2 for cuda 11.0
Download from https://developer.nvidia.com/cudnn
$ tar -xzvf cudnn-11.0-linux-x64-v8.0.2.39.tgz
$ sudo cp cuda/include/cudnn*.h /usr/local/cuda/include
$ sudo cp cuda/lib64/libcudnn* /usr/local/cuda/lib64
$ sudo chmod a+r /usr/local/cuda/include/cudnn*.h /usr/local/cuda/lib64/libcudnn*

Install NCCL

$ sudo dpkg -i nvidia-machine-learning-repo-ubuntu1604_1.0.0-1_amd64.deb
$ sudo update
$ sudo apt-get install libnccl2 libnccl-dev

Fund EMT

Fund some EMT token to your node address (corresponding to the private key configured in config.json)

Emeth-node Setup

Clone or unzip the repository code

$ git clone <repository path>
or
$ unzip emeth-node-0.8.0.zip

Config file

$ cp src/config/config.json.example src/config/config.json
$ vi src/config/config.json

Parameter	Description
emethContractAddress	Emeth contract address
tokenContractAddress	Token contract address
endpoint	Ethereum node endpoint(Web socket)
privateKey	Your private key
storageApi	Emeth storage api endpoint
profile.powerCapacity	Power capacity
profile.batchSize	Batch size
profile.n_epochs	Epoch num
profile.device	'cuda:n' (for using gpu:n) or 'cuda' (for using all gpu) or 'cpu' (for using cpu)

Test Phase Example:

{
  "emethContractAddress": "0xA49B59ae7E27E4CDc31c4CdD29f2B8725cE7ac49",
  "tokenContractAddress": "0x608919fA99A5C85D8D29f74E8c0325C0FE91016B",
  "endpoint": "wss://rinkeby.infura.io/ws/v3/<your infura.io key>",
  "privateKey": "<your private key>",
  "storageApi": "ec2-52-196-43-170.ap-northeast-1.compute.amazonaws.com",
  "profile": {
    "powerCapacity": "27300",
    "batchSize": "6",
    "n_epochs": "6",
    "device": "cuda"
  }
}

Install packages

npm install

Build

npm run build

Run Emeth-node

Attach (in Master node)

node dist/cli.js attach

Launch Master node

node dist/cli.js master

Launch Worker node

node dist/cli.js worker

Dettach (in Master node)

node dist/cli.js dettach

BunHouth/emeth-node