Learn BIGDL with Real Code Examples
Updated Nov 24, 2025
Explain
BigDL allows data scientists to run deep learning directly on top of existing big data infrastructures without moving data.
It integrates with Apache Spark and Apache Hadoop ecosystems for scalable training and inference.
BigDL supports high-level deep learning APIs for neural networks, CNNs, RNNs, and optimizations for distributed computing.
Core Features
Distributed training on CPUs and GPUs
Optimized computation engine leveraging Intel MKL and vectorization
Data-parallel and model-parallel training strategies
Inference at scale on Spark/Hadoop clusters
Built-in metrics, evaluation, and visualization tools
Basic Concepts Overview
NNModel: defines the neural network architecture
Optimizer: handles model training with specified loss and optimizer
Dataset: RDD or DataFrame-based dataset for distributed training
Module: layers and blocks composing a neural network
Estimator/Pipeline: integrates BigDL with Spark ML pipelines
Project Structure
Scripts/ - Python or Scala model scripts
Datasets/ - large-scale data on HDFS/S3
Models/ - saved BigDL model files
Notebooks/ - exploratory analysis and training
Logs/ - training and evaluation logs
Building Workflow
Load large dataset into Spark DataFrame or RDD
Preprocess data using Spark transformations
Define neural network architecture using BigDL layers
Train model using Optimizer with distributed training
Evaluate performance and deploy model for inference on cluster
Difficulty Use Cases
Beginner: small dataset experiments using local Spark
Intermediate: training distributed neural networks
Advanced: custom layer implementation and optimizations
Expert: integrating with Spark ML pipelines and streaming data
Enterprise: scalable AI pipelines with real-time inference on clusters
Comparisons
BigDL vs TensorFlow: BigDL scales on Spark/Hadoop; TensorFlow more standalone/deep learning focused
BigDL vs PyTorch: PyTorch better for research/experimentation; BigDL integrates with big data pipelines
BigDL vs Spark MLlib: MLlib for classical ML; BigDL for deep learning on Spark
BigDL vs H2O.ai: H2O for general ML; BigDL for distributed deep learning on Spark
BigDL vs Keras: Keras for small to medium datasets; BigDL scales to large clusters
Versioning Timeline
2016 β Initial release by Intel
2017 β Added Keras-style high-level API
2018 β Distributed training optimizations and GPU support
2019 β BigDL 0.9+ integrated with Analytics Zoo
2025 β BigDL 2.x with full Spark 3.x support and modern deep learning layers
Glossary
BigDL: distributed deep learning library on Spark
RDD: Resilient Distributed Dataset in Spark
DataFrame: structured distributed dataset
Optimizer: training algorithm for neural networks
Module: layer or network block in BigDL