What Is Horovod Distributed Framework and How Can You Deploy It on E2E Cloud?

May 18, 2023

Horovod is a distributed deep learning training framework for TensorFlow, Keras, PyTorch, and Apache MXNet. The goal of Horovod is to make distributed deep learning fast, easy and portable. As large language models continue to reshape the landscape of Natural Language Processing  (NLP) and Machine Learning (ML) robust and scalable infrastructure has become of paramount importance. E2E Cloud, a leading GPU cloud provider, offers a powerful solution for data scientists and technical professionals seeking to leverage the potential of large language models. In this article, we will explore the deployment of Horovod, an open-source model parallelism framework, on E2E Cloud. By combining the performance of NVIDIA GPUs with the flexibility and competitive pricing of E2E Cloud, users can unlock the full potential of their large language models.

Introducing Horovod: Open Source Distributed Deep Learning Framework

Horovod is a distributed training framework that enables data scientists to train large models across multiple GPUs, servers, or even distributed clusters. It harnesses the power of model parallelism and data parallelism to improve training times and scale the model size. By leveraging Horovod, users can achieve faster convergence, reduce training time, and effectively handle large datasets. With its ability to support popular Deep Learning frameworks like TensorFlow, PyTorch, and MXNet, Horovod has become the go-to solution for training large language models.

Key Features of Horovod

  1. Distributed Training

Horovod's primary objective is to enable distributed training of Deep Learning models. It leverages efficient communication protocols, such as the Message Passing Interface (MPI), to efficiently exchange gradients and synchronize the model parameters across multiple GPUs or machines. By distributing the training workload, Horovod significantly reduces the training time for large models.

  1. TensorFlow and PyTorch Support

Horovod seamlessly integrates with popular deep-learning frameworks like TensorFlow and PyTorch. It provides APIs that allow developers to modify their existing single GPU code to run efficiently in a distributed training environment. With Horovod, you can leverage the power of distributed training without major code modifications.

  1. Flexibility and Scalability

Horovod's architecture is designed to be highly flexible and scalable. It supports a wide range of deployment scenarios, from a small cluster of GPUs to large-scale distributed systems. Horovod scales seamlessly as you add more GPUs or machines to your training setup, ensuring efficient utilization of available resources.

  1. Performance Optimization

Horovod incorporates various performance optimizations to maximize the efficiency of distributed training. It utilizes techniques like gradient compression, which reduces the communication overhead by compressing the gradients before transmission. Additionally, Horovod employs sophisticated algorithms for gradient averaging and synchronization, further enhancing training speed and convergence.

  1. Fault Tolerance

Horovod is built to handle failures gracefully in distributed training scenarios. It provides fault tolerance mechanisms that can recover from individual GPU or node failures without affecting the overall training process. This resilience ensures that your training jobs on E2E Cloud's GPU cloud platform continue uninterrupted, even in the face of unexpected hardware or network issues.

How Is Horovod Helping Data Scientists in the Real World with E2E Cloud GPUs?

The utilization of Horovod and E2E Cloud's GPU infrastructure provides several advantages for data scientists. Here are a few potential use cases for Horovod:

  1. Natural Language Processing (NLP)

Large language models such as GPT-3 require significant computing power to train effectively. Horovod allows users to distribute the training process across multiple GPUs and machines, making it possible to train these models in a reasonable amount of time. E2E Cloud's Cloud GPUs can provide the necessary computing power to run these types of workloads, and with their competitive pricing, users can train large language models more affordably.

  1. Reduced Training Time

With Horovod's distributed training capabilities and the computational power of NVIDIA GPUs, data scientists can significantly reduce the time required to train large language models. This enables faster experimentation, iteration, and ultimately accelerates time-to-insights.

  1. Computer Vision

Object detection and image segmentation are computationally expensive tasks that can benefit from the use of Horovod. With Horovod, users can distribute the workload across multiple GPUs and machines, making it possible to train more complex models faster. This is especially useful for applications such as autonomous vehicles, where quick and accurate object detection is critical.

  1. Reinforcement Learning

Reinforcement Learning is a type of machine learning where an agent learns to make decisions by interacting with an environment. This type of training can also benefit from the use of Horovod, as it allows users to distribute the workload across multiple GPUs and machines, making it possible to train more complex models in a shorter amount of time. With E2E Cloud's Cloud GPUs, users can train reinforcement learning models more affordably than with on-premise hardware.

By leveraging Horovod and E2E’s Cloud GPUs, users can accelerate their Deep Learning workloads and achieve better model accuracy while keeping costs low. This is especially valuable for businesses and researchers who need to train large models quickly and efficiently. E2E Cloud's flexible per-hour pricing model also makes it easy to scale up and down as needed, providing users with the flexibility they need to tackle their Deep Learning projects.

Deploying Horovod on E2E Cloud

Step 1: Provisioning E2E Cloud GPU Instances

To begin with, users need to sign up for an account on E2E Cloud and provision GPU instances with NVIDIA GPUs. E2E Cloud provides highly competitive pricing in the Indian and global markets, making it an attractive choice for deploying large language models. Users can choose the GPU instance type based on their specific requirements, ensuring the right balance between performance and cost.

Note: Step-By-Step Guide to Launch A100 80GB Cloud GPU on E2E Cloud

Here’s how you can launch an A100 80GB on E2E Cloud and run your Horovod framework:

  • Go to Compute> GPU> NVIDIA- A100 80GB
  • Click on “Create” and choose your plan

  • Choose your required security, backup, and network settings and click on “Create My Node”.

  • The launched plan will appear in your dashboard once it starts running.

‍After launching the A100 80GB Cloud GPU from the Myaccount portal, you can deploy your model by following the steps mentioned below. 

Step 2: Installing Dependencies and Horovod

Once the GPU instances are up and running, users can log in to their instances and install the necessary dependencies. This includes installing the CUDA toolkit, cuDNN library, and the Deep Learning framework of their choice (e.g., TensorFlow, PyTorch). Detailed installation guides are available on the respective framework's documentation.

Next, users can proceed with installing Horovod. Horovod provides straightforward installation instructions on its official website, catering to different frameworks. Following the guidelines, users can install Horovod and its dependencies on their E2E Cloud instances.

Step 3: Configuring the Horovod Environment

After successfully installing Horovod, users need to configure their environment to take advantage of its distributed training capabilities. This involves setting up the necessary environment variables and ensuring that all nodes can communicate with each other. Horovod provides documentation on configuring the environment variables for various distributed training scenarios.

Step 4: Preparing Data and Model

Before training a large language model, data scientists must prepare the dataset and the model architecture. This includes cleaning and preprocessing the data, splitting it into training and validation sets, and defining the model's architecture. Data scientists can leverage libraries such as Hugging Face's Transformers to access pre-trained models and tailor them to their specific tasks.

Step 5: Implementing Distributed Training with Horovod

With the environment configured and the data and model prepared, users can now integrate Horovod into their training script. Horovod provides easy-to-use APIs that wrap around existing Deep Learning frameworks, enabling seamless integration. Users can modify their training script by following Horovod's API documentation to distribute the training across multiple GPUs or instances.

Step 6: Scaling and Monitoring

One of the key advantages of  E2E Cloud is its scalability. As users train their large language models, they can effortlessly scale up the number of GPU instances to accelerate the training process. E2E Cloud's flexible per-hour pricing allows users to optimize costs while achieving the desired performance.

Why Should You Train Your Models on E2E Cloud?

One crucial aspect of leveraging large language models effectively is efficient training and distributed computing. This is where Horovodcomes into play. Horovod provides a scalable and efficient solution for distributed Deep Learning, enabling researchers and practitioners to train their models faster and more effectively.

At E2E Cloud, we understand the importance of empowering our customers with the latest technologies and tools. That's why we fully support Horovod and its integration with our cloud infrastructure. By partnering with NVIDIA, E2E Cloud offers a powerful infrastructure that supports Horovod and allows data scientists to run distributed training jobs on high-performance NVIDIA GPUs. This combination of Horovod and NVIDIA GPUs ensures that data scientists can achieve industry-vetted performance while benefiting from flexible per-hour pricing and lower rates in the market.

Sign Up for an Account on E2E Cloud

Begin your AI journey with our GPU cloud services and Horovod integration. Embrace the future of AI with E2E Cloud and Horovod. Get started now!

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