Parallel programming using python

Jul 12, 20132 likes1,275 views

This document provides an introduction to parallel programming using Python. It discusses the motivation for parallel programming by utilizing multiple CPU cores simultaneously. The two main approaches in Python are forking processes using os.fork and spawning threads. It provides examples of forking processes and using threads via the _thread and threading modules. It also discusses challenges like synchronizing access to shared objects and introduces solutions like the multiprocessing module for interprocess communication.

Introduction to
Parallel Programming
using Python
Presented by: Samah Gad
July 11, 2013
Friday, July 12, 13

Road Map
Motivation
Forking Processes
Threads
Interprocess Communication - Overview
The multiprocessing Module - Overview
Friday, July 12, 13

Most read

Motivation
Problem:
Most computers spend a lot of time
doing nothing.
Majority of the modern CPU’s capacity
is often spent in an idle state.
Friday, July 12, 13

Motivation -Cont.
Solution:
Running more than one program at a
time.
Dividing the CPU attention among a
set of tasks.
Parallel Processing, Multiprocessing,
or Multitasking.
Friday, July 12, 13

Parallel Processing in
Python
Two main ways to run tasks:
Process forks
Spawned threads
Python built-in tools like: os.fork, threading,
queue, and multiprocessing.
Third Party domains offers more advanced
tools.
Friday, July 12, 13

Forking Processes
Traditional ways to structure parallel
tasks.
Straight forward way to start an
independent program.
What is forking?
Copying programs.
Python Module - os.fork
Friday, July 12, 13

Threads
Another way to start activities
running at the same time.
Lightweight processes
Run within the same single process.
Friday, July 12, 13

Threads - Advantages:
Performance
Simplicity
Shared global memory
Portability
Friday, July 12, 13

Python Modules
Python Modules:
_thread module
threading modules
Both modules provide tools for
synchronizing access to shared objects
with locks.
Friday, July 12, 13

The _thread Module
Start new independent threads of
execution within a process.
Doesn't support OOP
Platform independent module.
Friday, July 12, 13

Synchronizing access to
shared objects and names
What is problem?
Objects and namespaces in a process
that span the life of threads are
shared by all spawned threads.
Solution:
Threads automatically come with a
cross-task communications
Friday, July 12, 13

Threading Module
Internally uses the _thread module to
implement objects that represent
threads and common synchronization
tools.
Manage threads with high-level class-
based objects.
Friday, July 12, 13

Interprocess
Communication - Overview
Other solutions don’t support cross-
program communication
Sockets, Pipes, and Signals
Enable performing Inter-Process
Communication (IPC)
Friday, July 12, 13

The multiprocessing
Module - Overview
Provide the best of processes and threads.
Platform independent.
Uses processes instead of threads.
Provide synchronizations tools.
Leverage the capacity of multiple
processors.
Friday, July 12, 13

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How does your privacy program compare to your peers? What challenges are privacy teams tackling and prioritizing in 2025? In the sixth annual Global Privacy Benchmarks Survey, we asked global privacy professionals and business executives to share their perspectives on privacy inside and outside their organizations. The annual report provides a 360-degree view of various industries' priorities, attitudes, and trends. See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe. This webinar features an expert panel discussion and data-driven insights to help you navigate the shifting privacy landscape. Whether you are a privacy officer, legal professional, compliance specialist, or security expert, this session will provide actionable takeaways to strengthen your privacy strategy. This webinar will review: - The emerging trends in data protection, compliance, and risk - The top challenges for privacy leaders, practitioners, and organizations in 2025 - The impact of evolving regulations and the crossroads with new technology, like AI Predictions for the future of privacy in 2025 and beyond

“Why It’s Critical to Have an Integrated Development Methodology for Edge AI,...Edge AI and Vision Alliance

For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2025/06/why-its-critical-to-have-an-integrated-development-methodology-for-edge-ai-a-presentation-from-lattice-semiconductor/ Sreepada Hegade, Director of ML Systems and Software at Lattice Semiconductor, presents the “Why It’s Critical to Have an Integrated Development Methodology for Edge AI” tutorial at the May 2025 Embedded Vision Summit. The deployment of neural networks near sensors brings well-known advantages such as lower latency, privacy and reduced overall system cost—but also brings significant challenges that complicate development. These challenges can be addressed effectively by choosing the right solution and design methodology. The low-power FPGAs from Lattice are well poised to enable efficient edge implementation of models, while Lattice’s proven development methodology helps to mitigate the challenges and risks associated with edge model deployment. In this presentation, Hegade explains the importance of an integrated framework that tightly consolidates different aspects of edge AI development, including training, quantization of networks for edge deployment, integration with sensors and inferencing. He also illustrates how Lattice’s simplified tool flow helps to achieve the best trade-off between power, performance and efficiency using low-power FPGAs for edge deployment of various AI workloads.

“From Enterprise to Makers: Driving Vision AI Innovation at the Extreme Edge,...Edge AI and Vision Alliance

For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2025/06/from-enterprise-to-makers-driving-vision-ai-innovation-at-the-extreme-edge-a-presentation-from-sony-semiconductor-solutions/ Amir Servi, Edge Deep Learning Product Manager at Sony Semiconductor Solutions, presents the “From Enterprise to Makers: Driving Vision AI Innovation at the Extreme Edge” tutorial at the May 2025 Embedded Vision Summit. Sony’s unique integrated sensor-processor technology is enabling ultra-efficient intelligence directly at the image source, transforming vision AI for enterprises and developers alike. In this presentation, Servi showcases how the AITRIOS platform simplifies vision AI for enterprises with tools for large-scale deployments and model management. Servi also highlights his company’s collaboration with Ultralytics and Raspberry Pi, which brings YOLO models to the developer community, empowering grassroots innovation. Whether you’re scaling vision AI for industry or experimenting with cutting-edge tools, this presentation will demonstrate how Sony is accelerating high-performance, energy-efficient vision AI for all.

ENERGY CONSUMPTION CALCULATION IN ENERGY-EFFICIENT AIR CONDITIONER.pdfMuhammad Rizwan Akram

DC Inverter Air Conditioners are revolutionizing the cooling industry by delivering affordable, energy-efficient, and environmentally sustainable climate control solutions. Unlike conventional fixed-speed air conditioners, DC inverter systems operate with variable-speed compressors that modulate cooling output based on demand, significantly reducing energy consumption and extending the lifespan of the appliance. These systems are critical in reducing electricity usage, lowering greenhouse gas emissions, and promoting eco-friendly technologies in residential and commercial sectors. With advancements in compressor control, refrigerant efficiency, and smart energy management, DC inverter air conditioners have become a benchmark in sustainable climate control solutions

Down the Rabbit Hole – Solving 5 Training RoadblocksRustici Software

Feeling stuck in the Matrix of your training technologies? You’re not alone. Managing your training catalog, wrangling LMSs and delivering content across different tools and audiences can feel like dodging digital bullets. At some point, you hit a fork in the road: Keep patching things up as issues pop up… or follow the rabbit hole to the root of the problems. Good news, we’ve already been down that rabbit hole. Peter Overton and Cameron Gray of Rustici Software are here to share what we found. In this webinar, we’ll break down 5 training roadblocks in delivery and management and show you how they’re easier to fix than you might think.

Scaling GenAI Inference From Prototype to Production: Real-World Lessons in S...Anish Kumar

Presented by: Anish Kumar LinkedIn: https://www.linkedin.com/in/anishkumar/ This lightning talk dives into real-world GenAI projects that scaled from prototype to production using Databricks’ fully managed tools. Facing cost and time constraints, we leveraged four key Databricks features—Workflows, Model Serving, Serverless Compute, and Notebooks—to build an AI inference pipeline processing millions of documents (text and audiobooks). This approach enables rapid experimentation, easy tuning of GenAI prompts and compute settings, seamless data iteration and efficient quality testing—allowing Data Scientists and Engineers to collaborate effectively. Learn how to design modular, parameterized notebooks that run concurrently, manage dependencies and accelerate AI-driven insights. Whether you're optimizing AI inference, automating complex data workflows or architecting next-gen serverless AI systems, this session delivers actionable strategies to maximize performance while keeping costs low.

FME for Good: Integrating Multiple Data Sources with APIs to Support Local Ch...Safe Software

Have-a-skate-with-Bob (HASB-KC) is a local charity that holds two Hockey Tournaments every year to raise money in the fight against Pancreatic Cancer. The FME Form software is used to integrate and exchange data via API, between Google Forms, Google Sheets, Stripe payments, SmartWaiver, and the GoDaddy email marketing tools to build a grass-roots Customer Relationship Management (CRM) system for the charity. The CRM is used to communicate effectively and readily with the participants of the hockey events and most importantly the local area sponsors of the event. Communication consists of a BLOG used to inform participants of event details including, the ever-important team rosters. Funds raised by these events are used to support families in the local area to fight cancer and support PanCan research efforts to find a cure against this insidious disease. FME Form removes the tedium and error-prone manual ETL processes against these systems into 1 or 2 workbenches that put the data needed at the fingertips of the event organizers daily freeing them to work on outreach and marketing of the events in the community.

Supporting the NextGen 911 Digital Transformation with FMESafe Software

Next Generation 911 involves the transformation of our 911 system from an old analog one to the new digital internet based architecture. The evolution of NG911 opens up a host of new opportunities to improve the system. This includes everything from device based location, to real time text. This can improve location accuracy dramatically as well as provide live updates from the citizen in need along with real time sensor updates. There is also the opportunity to provide multi-media attachments and medical records if the end user approves. This digital transformation and enhancements all require the support of new NENA and CRTC standards, along with integration across a variety of data streams. This presentation will focus on how FME has supported NG911 transformations to date, and how we are positioning FME to support the enhanced capabilities to come. This session will be of interest to emergency services, municipalities and anyone who may be interested to know more about how emergency services are being improved to provide more accurate, localized information in order to improve the speed and relevance of emergency response and ultimately save more lives and provide better outcomes for those in need.

Floods in Valencia: Two FME-Powered Stories of Data ResilienceSafe Software

In October 2024, the Spanish region of Valencia faced severe flooding that underscored the critical need for accessible and actionable data. This presentation will explore two innovative use cases where FME facilitated data integration and availability during the crisis. The first case demonstrates how FME was used to process and convert satellite imagery and other geospatial data into formats tailored for rapid analysis by emergency teams. The second case delves into making human mobility data—collected from mobile phone signals—accessible as source-destination matrices, offering key insights into population movements during and after the flooding. These stories highlight how FME's powerful capabilities can bridge the gap between raw data and decision-making, fostering resilience and preparedness in the face of natural disasters. Attendees will gain practical insights into how FME can support crisis management and urban planning in a changing climate.