Book Image

Distributed Machine Learning with Python

By : Guanhua Wang
Book Image

Distributed Machine Learning with Python

By: Guanhua Wang

Overview of this book

Reducing time cost in machine learning leads to a shorter waiting time for model training and a faster model updating cycle. Distributed machine learning enables machine learning practitioners to shorten model training and inference time by orders of magnitude. With the help of this practical guide, you'll be able to put your Python development knowledge to work to get up and running with the implementation of distributed machine learning, including multi-node machine learning systems, in no time. You'll begin by exploring how distributed systems work in the machine learning area and how distributed machine learning is applied to state-of-the-art deep learning models. As you advance, you'll see how to use distributed systems to enhance machine learning model training and serving speed. You'll also get to grips with applying data parallel and model parallel approaches before optimizing the in-parallel model training and serving pipeline in local clusters or cloud environments. By the end of this book, you'll have gained the knowledge and skills needed to build and deploy an efficient data processing pipeline for machine learning model training and inference in a distributed manner.
Table of Contents (17 chapters)
Section 1 – Data Parallelism
Section 2 – Model Parallelism
Section 3 – Advanced Parallelism Paradigms

Implementing adaptive model training in the cloud

Here, we discuss how to implement adaptive model training using PyTorch on AWS.

First, we need to install the corresponding Python packages:

# installation
pip3 -m pip install adaptdl

Once the package is successfully installed, we can use it for adaptive and distributed DNN training, as follows:

#import package
import adaptdl
# Initialize process group
# Wrap model to adaptdl version
model = adaptdl.torch.AdaptiveDataParallel(model, optimizer)
# Wrap data loader to adaptdl version
dataloader = adaptdl.torch.AdaptiveDataLoader(dataset, batch_size = 128)
# Start adaptive DNN training
remaining_epoch = 200
epoch = 0
for epoch in adaptdl.torch.remaining_epochs_until(remaining_epochs)

Basically, we need to wrap both the model and input data with the adaptdl version. Then, we can conduct the normal DNN training and adaptdl will handle how to conduct the...