Python Concurrency and Parallel Programming

  1. Multiprocessing for CPU-Bound Parallelism
    1. Multiprocessing Module Fundamentals
      1. Module overview and motivation
        1. Process-based parallelism benefits
          1. Import and basic usage patterns
          2. GIL Bypass Mechanisms
            1. Process isolation benefits
              1. True parallel execution
                1. Memory space separation
                2. Process Creation and Management
                  1. Process Class Usage
                    1. Process instantiation
                      1. Process subclassing
                        1. Target function specification
                        2. Process Spawning Methods
                          1. Fork vs spawn vs forkserver
                            1. Platform-specific differences
                              1. Method selection criteria
                              2. Process Lifecycle
                                1. Process starting
                                  1. Process joining
                                    1. Process termination
                                      1. Graceful vs forceful shutdown
                                    2. Inter-Process Communication
                                      1. Multiprocessing Queues
                                        1. Cross-process data sharing
                                          1. Serialization requirements
                                            1. Queue size limitations
                                            2. Pipes
                                              1. Duplex communication channels
                                                1. Pipe creation and usage
                                                  1. Performance characteristics
                                                  2. Shared Memory Objects
                                                    1. Value Objects
                                                      1. Single value sharing
                                                        1. Type specification
                                                          1. Synchronization needs
                                                          2. Array Objects
                                                            1. Array data sharing
                                                              1. Memory efficiency
                                                                1. Type constraints
                                                              2. Manager Objects
                                                                1. Shared data structures
                                                                  1. Proxy object behavior
                                                                    1. Network transparency
                                                                  2. Process Synchronization
                                                                    1. Process Locks
                                                                      1. Mutual exclusion across processes
                                                                        1. Lock acquisition patterns
                                                                          1. Performance considerations
                                                                          2. Process Events
                                                                            1. Cross-process signaling
                                                                              1. Event state coordination
                                                                                1. Blocking behavior
                                                                                2. Process Semaphores
                                                                                  1. Resource access control
                                                                                    1. Counter management
                                                                                      1. Initialization parameters
                                                                                      2. Process Conditions
                                                                                        1. Complex coordination patterns
                                                                                          1. Wait and notify semantics
                                                                                            1. Predicate evaluation
                                                                                          2. Process Pool Management
                                                                                            1. Pool Class Overview
                                                                                              1. Worker process management
                                                                                                1. Pool size optimization
                                                                                                  1. Resource allocation
                                                                                                  2. Task Submission Methods
                                                                                                    1. Synchronous Apply
                                                                                                      1. Blocking execution
                                                                                                        1. Direct result return
                                                                                                          1. Error propagation
                                                                                                          2. Asynchronous Apply
                                                                                                            1. Non-blocking execution
                                                                                                              1. Result object handling
                                                                                                                1. Callback mechanisms
                                                                                                                2. Map Operations
                                                                                                                  1. Function mapping over iterables
                                                                                                                    1. Result ordering guarantees
                                                                                                                      1. Chunk size optimization
                                                                                                                      2. Asynchronous Map
                                                                                                                        1. Non-blocking mapping
                                                                                                                          1. Result collection
                                                                                                                            1. Progress monitoring
                                                                                                                            2. Starmap Operations
                                                                                                                              1. Multiple argument mapping
                                                                                                                                1. Argument unpacking
                                                                                                                                  1. Use case scenarios
                                                                                                                                2. Result Management
                                                                                                                                  1. Result object interface
                                                                                                                                    1. Exception handling in results
                                                                                                                                      1. Timeout specifications
                                                                                                                                      2. Pool Lifecycle
                                                                                                                                        1. Pool closing procedures
                                                                                                                                          1. Worker termination
                                                                                                                                            1. Resource cleanup