PyVideo.org - technology

Exploit your GPU power with PyCUDA (and friends)

Stefano Brilli — Thu, 21 Jul 2011 00:00:00 +0000

Summary

[EuroPython 2011] Stefano Brilli - 22 June 2011 in "Track Spaghetti"

Description

CUDA technology permits to exploit the power of modern NVIDIA GPUs. In this talk, after a brief introduction to GPU architecture, we will focus on how CUDA got inside Python through libraries like PyCUDA and others…

By some examples we will show the main concepts and techniques for good GPU programming.

This talk targets anyone who wants to know how to exploit this technology from Python, the suitable use cases, the using techniques and the do-not-using techniques to get the best from his own GPU

It's the message, stupid: python & amqp

Muharem Hrnjadovic — Wed, 13 Jul 2011 00:00:00 +0000

Summary

[EuroPython 2011] Muharem Hrnjadovic - 21 June 2011 in "Track Ravioli"

Description

Messaging is a well established domain in information technology and can greatly improve the scalability and throughput of a system when employed appropriately. Message queues can be used to achieve

spatial decoupling i.e. the systems that produce and consume messages may be deployed on different machines, networks, continents etc.
temporal decoupling i.e. a system can enqueue a message and carry on without waiting for the message consumer.

We use e.g. messaging in OpenQuake to distribute calculations of seismic hazard and the respective risk to human lives and infrastructure.

There is a huge number of messaging patterns identified in the industry and a small selection of these will be presented to whet your appetite :-)

AMQP is a fairly new and open messaging standard with a number of freely available open source message brokers (RabbitMQ, ZeroMQ, qpid etc.) with different features and performance trade-offs.

In the course of the presentation you will be - introduced to AMQP concepts and jargon - introduced to available Python AMQP bindings (focussing on an asynchronous (txAMQP) and a synchronous variant (most likely kombu) - shown code examples demonstrating how to use these Python bindings

The presentation (45 minutes in total) is structured as follows:

7.5 minutes for messaging concepts and patterns
7.5 minutes for AMQP concepts
5 minutes for an overview of the Python bindings for AMQP
10 minutes for txAMQP examples (asynchronous bindings)
10 minutes for kombu examples (synchronous bindings)
5 minutes for questions

References:

Leveraging an instant messaging protocol to build a scalable cloud architecture

Achiel van der Mandele — Wed, 13 Jul 2011 00:00:00 +0000

Summary

[EuroPython 2011] Achiel van der Mandele - 24 June 2011 in "Track Lasagne"

Description

XMPP is an open technology for real-time communication. Although primarily known for its application in the IM service "Jabber" (and, subsequently, gchat/gtalk), it has numerous applications and creates new opportunities for inter-system communication.

While researching for an alternative to webservices at Mendix, we came across XMPP and realized it solved many of the shortcomings of webservices. It is currently being used to handle all inter-system and inter-process communication in the Mendix cloud hosting environment.

The talk will give a general overview of what XMPP is, an introduction to the sleekxmpp python library and how the core features of xmpp can help an architecture scale well horizontally.

Required knowledge: basic understanding of hosting environments.

Richard Clark - The living coder

Richard Clark — Sat, 07 Nov 2009 00:00:00 +0000

Description

The Living Coder

Presented by Richard Clark

Abstract

Tales, anecdotes philosophy and musings about the life that surrounds the code we write.

Outline

The project manager called me to his office and said "I know you did this in two weeks in perl, but applications here must be written in java, because java programmers are much easier to find". When I left 6 months later, the same manager said "You wouldn't happen to know any java programmers would you? we have nobody to replace you..". This is the story of the life that exists around the code we write.

[VIDEO HAS ISSUES: Sound and video are poor. Slides are hard to read.]