> ## Documentation Index
> Fetch the complete documentation index at: https://newtorch.aboneda.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Study Plan 1

**Objective:** Build comprehensive expertise in PyTorch and deep learning engineering, from fundamentals through production deployment.

***

## Phase 1: Foundations

### 1.1 Tensor Operations

* Master `torch.tensor` API and core operations
* Build custom tensor implementation to understand CUDA integration
* Optimize tensor operations between CPU and GPU
* Study memory management and performance optimization

### 1.2 Automatic Differentiation

* Master `torch.autograd` for gradient computation
* Build a custom autograd engine from scratch
* Understand computational graphs and backpropagation
* Optimize gradient computation for complex models

### 1.3 Neural Network Modules

* Master `torch.nn` module architecture
* Build custom neural network framework
* Understand internal mathematics of layers
* Implement various network architectures (feedforward, convolutional, recurrent)

### 1.4 Data Pipeline Engineering

* Master `torch.utils.data` for efficient data loading
* Design end-to-end ETL processes
* Implement batching, sampling, and augmentation strategies
* Optimize data pipelines for performance
* Build real-world streaming data demos

Outcome: Deep understanding of PyTorch internals, ability to implement custom components, and optimized data pipelines for real-world applications.

***

## Phase 2: Model Development

### 2.1 Architecture Design

* Structure custom model architectures
* Design and implement custom layers
* Understand architectural patterns and best practices

### 2.2 Training Components

* Build custom loss functions and evaluation metrics
* Implement custom optimizers and learning rate schedulers
* Design complete training and evaluation loops
* Optimize training workflow for efficiency

### 2.3 Development Tools

* Master debugging techniques
* Use visualization and monitoring tools
* Profile model performance
* Implement advanced techniques: parameterization, pruning, distillation

### 2.4 Distributed Computing

* Study parallel computing fundamentals
* Master tools: DeepSpeed, Ray, FSDP
* Implement data and model parallelism
* Optimize multi-device training workflows

### 2.5 Device Management

* Optimize performance across devices (CPU, GPU, MPS, XPU)
* Understand device-specific optimizations
* Implement efficient device allocation strategies

Outcome: Ability to train complex models reliably and efficiently.

***

## Phase 3: Performance Optimization

### 3.1 Compilation and Export

* Master `torch.compile` for performance gains
* Use `torch.export` for model optimization
* Understand JIT compilation and graph optimization

### 3.2 Quantization

* Implement post-training quantization
* Apply quantization-aware training
* Optimize model size and inference speed

### 3.3 Distributed Training

* Implement distributed data parallelism (DDP)
* Use fully sharded data parallelism (FSDP)
* Configure multi-node training

### 3.4 Hardware Acceleration

* Optimize CUDA kernels
* Implement mixed precision training (AMP)
* Leverage specialized hardware (TPU, XPU, MPS)

### 3.5 Memory Optimization

* Apply gradient checkpointing
* Implement activation checkpointing
* Optimize batch sizes and memory usage

### 3.6 Profiling and Benchmarking

* Use PyTorch Profiler for bottleneck identification
* Benchmark model performance
* Optimize code based on profiling results

### 3.7 Advanced Transformations

* Apply code transforms and graph optimizations
* Implement fusion patterns
* Understand compiler internals

Outcome: Performance engineering mindset.

***

## Phase 4: Domain Specialization

### 4.1 Natural Language Processing

* Implement transformer architectures from scratch
* Build models: BERT, GPT, T5
* Optimize for text generation and understanding

### 4.2 Computer Vision

* Implement CNN architectures (ResNet, EfficientNet, Vision Transformers)
* Build object detection and segmentation models
* Optimize image processing pipelines

### 4.3 Audio and Speech

* Implement speech recognition models
* Build audio generation systems
* Process and augment audio data

### 4.4 Diffusion and Generative Models

* Implement diffusion models (DDPM, DDIM)
* Build GANs and VAEs
* Optimize generation quality and speed

### 4.5 Reinforcement Learning

* Implement policy gradient methods
* Build Q-learning and actor-critic models
* Design RL training environments

### 4.6 Graph Neural Networks

* Implement GNN architectures (GCN, GAT, GraphSAGE)
* Process graph-structured data
* Apply GNNs to real-world problems

### 4.7 Time Series Analysis

* Build forecasting models (LSTM, Transformer-based)
* Implement anomaly detection
* Handle temporal dependencies

### 4.8 Video and Multimodal Models

* Process video data efficiently
* Build multimodal fusion architectures
* Implement vision-language models

### 4.9 Recommender Systems

* Build collaborative and content-based systems
* Implement neural collaborative filtering
* Optimize recommendation pipelines

### 4.10 Anomaly Detection

* Implement unsupervised anomaly detection
* Build autoencoders and isolation forests
* Apply to real-world detection tasks

Outcome: Domain-level competence.

***

## Phase 5: Production Deployment

### 5.1 Model Export and Serialization

* Master TorchScript for model serialization
* Export models to ONNX format
* Use TorchServe for model serving
* Optimize deployment workflows

### 5.2 Inference Optimization

* Implement batching strategies
* Optimize serving latency and throughput
* Use model compression techniques
* Deploy on edge devices

### 5.3 Experiment Tracking

* Use MLflow, Weights & Biases, or TensorBoard
* Track metrics, hyperparameters, and artifacts
* Organize and compare experiments

### 5.4 MLOps and CI/CD

* Build ML pipelines with Kubeflow or MLflow
* Implement continuous training and deployment
* Monitor model drift and performance
* Automate testing and validation

### 5.5 Ecosystem Integration

* Master Hugging Face Transformers and Accelerate
* Use PyTorch Lightning for structured training
* Leverage Triton Inference Server
* Integrate with cloud platforms (AWS, GCP, Azure)

### 5.6 Production Monitoring

* Implement logging and alerting
* Monitor model performance in production
* Debug production issues
* Handle model retraining triggers

Outcome: Production-ready AI engineer.

***

## Phase 6: Advanced Topics

### 6.1 Transfer Learning and Fine-tuning

* Implement domain adaptation techniques
* Fine-tune pre-trained models efficiently
* Use parameter-efficient methods (LoRA, Adapters)

### 6.2 Custom CUDA Extensions

* Write custom CUDA kernels
* Implement efficient custom operators
* Integrate C++/CUDA extensions with PyTorch

### 6.3 Advanced Parallelism

* Master Megatron-LM for large models
* Use DeepSpeed ZeRO optimization
* Implement FairScale strategies

### 6.4 Research and Development Tools

* Use `torch.func` for functional transformations
* Apply `torch.fx` for symbolic tracing
* Understand compiler internals (`torch._dynamo`, `torch._inductor`)
* Implement AOT compilation strategies

### 6.5 Extending PyTorch

* Contribute to PyTorch core
* Build custom PyTorch extensions
* Understand PyTorch internals and architecture

### 6.6 Advanced Features

* Work with complex numbers and complex-valued models
* Implement sparse, Complex tensor operations
* Low-level memory control
* Optimize for specialized data types

### 6.7 Low-Level Internals

* Understand dispatcher and operator registration
* Study memory allocators and caching
* Explore autograd engine implementation

Outcome: Systems-level AI engineer.

***

## Phase 7: API Mastery and Continuous Learning

### 7.1 Comprehensive API Review

* Review and master all PyTorch modules
* Stay updated with new API releases
* Understand deprecations and migrations

### 7.2 Best Practices

* Follow PyTorch coding conventions
* Write efficient and maintainable code
* Document and test implementations

### 7.3 Community Engagement

* Contribute to open-source projects
* Participate in PyTorch forums and discussions
* Share knowledge through blogs and tutorials
