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FedERA is a modular and fully customizable open-source FL framework, aiming to address these issues by offering comprehensive support for heterogeneous edge devices and incorporating both standalone and distributed computing. It includes new software modules to enhance usability and promote environ- mental sustainability.

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Federated Learning Framework

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FedERA is a highly dynamic and customizable framework that can accommodate many use cases with flexibility by implementing several functionalities over different federated learning algorithms, and essentially creating a plug-and-play architecture to accommodate different use cases.

Supported Devices

FedERA has been extensively tested on and works with the following devices:

  • Intel CPUs
  • Nvidia GPUs
  • Nvidia Jetson
  • Raspberry Pi
  • Intel NUC

With FedERA, it is possible to operate the server and clients on separate devices or on a single device through various means, such as utilizing different terminals or implementing multiprocessing.

Installation

  • Install the latest version from source code:
$ git clone https://github.com/anupamkliv/FedERA.git
$ cd FedERA
$ pip install -r requirements.txt
  • Install the stable version (old version) via pip:
# assign the version federa==1.0.0
$ pip install federa
  • Using Docker

Create a docker image

docker build -t federa .

Run the docker image

docker run federa

Documentation

Website documentation has been made availbale for FedERA. Please visit FedERA Documentation for more details.

  1. Overview
  2. Installation
  3. Tutorials
  4. Contribution
  5. API Reference

Starting server

python -m federa.server.start_server \
 --algorithm fedavg \
 --clients 1 \
 --rounds 10 \
 --epochs 10 \
 --batch_size 10 \
 --lr 0.01 \
 --dataset mnist \

Starting client

python -m federa.client.start_client \
 --ip localhost:8214 \
 --device cpu \

Arguments to the clients and server

Server

Argument Description Default
algorithm specifies the aggregation algorithm fedavg
clients specifies number of clients selected per round 1
fraction specifies fraction of clients selected 1
rounds specifies total number of rounds 1
model_path specifies initial server model path initial_model.pt
epochs specifies client epochs per round 1
accept_conn determines if connections accepted after FL begins 1
verify specifies if verification module runs before rounds 0
threshold specifies minimum verification score 0
timeout specifies client training time limit per round None
resize_size specifies dataset resize dimension 32
batch_size specifies dataset batch size 32
net specifies network architecture LeNet
dataset specifies dataset name MNIST
niid specifies data distribution among clients 1
carbon specifies if carbon emissions tracked at client side 0
encryption specifies whether to use ssl encryption or not 0
server_key specifies path to server key certificate server-key.pem
server_cert specifies path to server certificate server.pem

Client

Argument Description Default
server_ip specifies server IP address localhost:8214
device specifies device cpu
encryption specifies whether to use ssl encryption or not 0
ca specifies path to CA certificate ca.pem
wait_time specifies time to wait before reconnecting to server 30

Architecture

Files architecture of FedERA. These contents may be helpful for users to understand our repo.

FedERA
├── federa
│   ├── client
│   │   ├── src
│   |   |   ├── client_lib
│   |   |   ├── client
│   |   |   ├── ClientConnection_pb2_grpc
│   |   |   ├── ClientConnection_pb2
│   |   |   ├── data_utils
│   |   |   ├── distribution
│   |   |   ├── get_data
│   |   |   ├── net_lib
│   |   |   ├── net
│   │   └── start_client
│   ├── server
│   │   ├── src
│   │   |   ├── algorithms
│   │   |   ├── server_evaluate
│   │   |   ├── client_connection_servicer
│   │   |   ├── client_manager
│   │   |   ├── client_wrapper
│   │   |   ├── ClientConnection_pb2_grpc
│   │   |   ├── ClientConnection_pb2
│   │   |   ├── server_lib
│   │   |   ├── server
│   │   |   ├── verification
│   │   └── start_server
|   └── test
|       ├── minitest
|       └── misc
│        
└── test
    ├── misc
    ├── benchtest
    |   ├── test_results
    |   └── test_scalability
    └──unittest
        ├── test_algorithms
        ├── test_datasets
        ├── test_models
        └── test_modules
        

The framework is be composed of 4 modules, each module building upon the last:

  • Module 1: Verification module docs
  • Module 2: Timeout module docs
  • Module 3: Intermediate client connections module docs
  • Module 4: Carbon emission tracking module docs

Running tests

Various unit tests and bench tests are available in the test directory. To run any tests, run the following command from the root directory:

python -m test.unittest.test_algorithms
python -m test.unittest.test_datasets
python -m test.unittest.test_models
python -m test.unittest.test_modules

Federated Learning Algorithms

Following federated learning algorithms are implemented in this framework:

Method Paper Publication
FedAvg Communication-Efficient Learning of Deep Networks from Decentralized Data AISTATS'2017
FedDyn Federated Learning Based on Dynamic Regularization ICLR' 2021
Scaffold SCAFFOLD: Stochastic Controlled Averaging for Federated Learning ICML'2020
Personalized FedAvg Improving Federated Learning Personalization via Model Agnostic Meta Learning Pre-print
FedAdagrad Adaptive Federated Optimization ICML'2020
FedAdam Adaptive Federated Optimization ICML'2020
FedYogi Adaptive Federated Optimization ICML'2020
Mime Mime: Mimicking Centralized Stochastic Algorithms in Federated Learning ICML'2020
Mimelite Mime: Mimicking Centralized Stochastic Algorithms in Federated Learning ICML'2020

Datasets & Data Partition

Sophisticated in the real world, FL needs to handle various kind of data distribution scenarios, including iid and non-iid scenarios. Though there already exists some datasets and partition schemes for published data benchmark, it still can be very messy and hard for researchers to partition datasets according to their specific research problems, and maintain partition results during simulation.

Data Partition

We provide multiple Non-IID data partition schemes. Here we show the data partition visualization of several common used datasets as the examples.

Balanced IID partition

Each client has same number of samples, and same distribution for all class samples.

Non-IID partition 2

Non-IID partition 3

Datasets Supported

Dataset Training samples Test samples Classes
MNIST 60,000 10,000 10
FashionMnist 60,000 10,000 10
CIFAR-10 50,000 10,000 10
CIFAR-100 50,000 10,000 100

Custom Dataset Support

We also provide a simple way to add your own dataset to the framework. The models employed in this framework were trained using a limited subset of the publicly accessible benchmark dataset MedMNIST v2 (link). We specifically selected four different medical image classes from this dataset, which include breast ultrasound (US), chest X-ray, retinal optical coherence tomography (OCT), and tissue microscopy. Each image within the dataset possesses dimensions of 28x28 pixels. For the framework's implementation, we utilized this custom dataset for both the side server and the client. Look into docs for more details.

Models Supported

FedERA has support for the following Deep Learning models, which are loaded from torchvision.models:

  • LeNet-5
  • ResNet-18
  • ResNet-50
  • VGG-16
  • AlexNet

Custom Model Support

We also provide a simple way to add your own models to the framework. Look into docs for more details.

Carbon emission tracking

In FedERA CodeCarbon package is used to estimate the carbon emissions generated by clients during training. CodeCarbon is a Python package that provides an estimation of the carbon emissions associated with software code.

Performance Evaluation under different Non-IID setting

Plotting the accuracy of some algorithms against different Non-IID distributions

Plotting accuracy on Non-IID distribution with different algorithms


Comparing accuracy of different algorithm with different Non-IID distributions

Contact

For technical issues related to FedERA development, please contact our development team through Github issues or email:

Principal Investigator

Dr Debdoot Sheet
Department of Electrical Engineering,
Indian Institute of Technology Kharagpur
email: debdoot@ee.iitkgp.ac.in

Contributor

Anupam Borthakur
Centre of Excellence in Artificial Intelligence,
Indian Institute of Technology Kharagpur
email: anupamborthakur@kgpian.iitkgp.ac.in
Github username: anupam-kliv

Asim Manna
Centre of Excellence in Artificial Intelligence,
Indian Institute of Technology Kharagpur
email: asimmanna17@kgpian.iitkgp.ac.in
Github username: asimmanna17

Aditya Kasliwal
Manipal Institute of Technology
email: kasliwaladitya17@gmail.com
Github username: Kasliwal17

Dipayan Dewan
Centre of Excellence in Artificial Intelligence,
Indian Institute of Technology Kharagpur
email: diipayan93@kgpian.iitkgp.ac.in
Github username: dipayandewan94

About

FedERA is a modular and fully customizable open-source FL framework, aiming to address these issues by offering comprehensive support for heterogeneous edge devices and incorporating both standalone and distributed computing. It includes new software modules to enhance usability and promote environ- mental sustainability.

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