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Getting Started with JAX

Chapter 1: Introduction to JAX

Core Design Philosophy: Function Transformations

Installation and Setup

Working with JAX Arrays

Device Management: CPU, GPU, TPU

Practice: Basic Array Operations

Quiz for Chapter 1

Chapter 2: Accelerating Functions with JIT Compilation

The Need for Speed: Why Compile?

Introducing jax.jit

How JIT Works: Tracing and Compilation

Python Control Flow and jit

Static vs Traced Values

Common Challenges with jit

Hands-on Practical: Applying jit

Quiz for Chapter 2

Chapter 3: Automatic Differentiation with grad

Understanding Gradients

Introducing jax.grad

How Autodiff Works: Reverse Mode

Differentiating with Respect to Arguments

Higher-Order Derivatives (grad of grad)

Value and Gradient (jax.value_and_grad)

Differentiation and Control Flow

Limitations and Considerations

Hands-on Practical: Computing Gradients

Quiz for Chapter 3

Chapter 4: Automatic Vectorization with vmap

The Concept of Vectorization

Introducing jax.vmap

Mapping over Specific Arguments (in_axes, out_axes)

Handling Multiple Batched Arguments

Combining vmap with jit and grad

Performance Considerations for vmap

Hands-on Practical: Vectorizing Functions

Quiz for Chapter 4

Chapter 5: Parallelization Across Devices with pmap

Introduction to Data Parallelism (SPMD)

Introducing jax.pmap

Mapping Data to Devices (in_axes, out_axes)

Device Meshes and Axis Names

Collective Operations (lax.psum, lax.pmean, etc.)

Combining pmap with other Transformations

Debugging pmapped Functions

Hands-on Practical: Parallel Computation

Quiz for Chapter 5

Chapter 6: Managing State in JAX

Functional Purity and Side Effects

The Challenge of State in Functional Code

Pattern: Explicit State Passing

Using PyTrees for Structured State

Example: Stateful Counter

Example: Simple Optimizer State

Combining State Management with Transformations

Practice: Implementing Stateful Functions

Quiz for Chapter 6

Quiz for Managing State in JAX | ApX Machine Learning

Quiz

Chapter: Managing State in JAX

Test your understanding and practice the concepts from this chapter

Quiz Instructions

This quiz contains 14 questions to help you practice.
You need to score at least 70% to pass.
Attempts: Unlimited.
Your highest score will be kept.
Please attempt this quiz without assistance; however, feel free to refer to the chapter notes or use a code interpreter if needed.
Complete all chapter quizzes to earn a course completion certificate. Learn more

Question Format

The questions are designed to be engaging, focusing on understanding, application, and interpretation rather than rote memorization. Expect scenario-based problems that test your ability to apply what you've learned.

Attempts

Best scores and quiz attempts will appear.

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