Category Archive

GreenIT

MC2: a tool to remotely monitor computer resources

Posted on June 11, 2021 by Renaud Pawlak

For more than a year now, EASYTEAM and Cinchéo have been working on a project that aims at creating new methods and tools to help IT departments to control the carbon footprint linked to digital services. It is a vast and complicated topic and a lot needs to be achieved. With MC2 (say M-C-square), we are contributing a small and modest part to the tooling ecosystem. In this post, I will explain the principles of MC2 and how it works. The source code is fully available on Github: https://github.com/cincheo/mc2. NOTE: MC2 it is still work in progress and is a

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Back to the Future: let’s stop buying new Laptops and Smartphones ;)

Posted on December 21, 2020 by Renaud Pawlak

When I was a teenager, I used to go to the center of Paris to buy specific parts to build my PC myself: sound cards, video cards, power blocks, hard drive, CPU, fans, memory, you name it. Not only it was fun and instructive, but it was also good for the planet.

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AI vs. Maths

Posted on November 25, 2020 by Renaud Pawlak

Quite recently, I had the chance to discuss with Philippe de Reffye, a French researcher who spent his life studying how plants grow. He built a generic mathematical model that can simulate the growth of any plant, assuming we can mesure some environmental parameters to calibrate the model. He wrote a very complete book about it (in French). The interesting point from my perspective is that his work managed to lower the computational complexity of simulating plant growth from an exponential to a linear function. What would take days to calculate can now be done in seconds, and it grows

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JSweet transpiles Sweet Home 3D open source project to help creating a web version

Posted on July 24, 2020 by Renaud Pawlak

A real-life example of migrating a Java application to JavaScript. In this post, I will explain how JSweet helps building the online JavaScript Web version of an Open-Source interior design application called Sweet Home 3D developed and maintained by Emmanuel Puybaret. Sweet Home 3D represents 130K Java Lines of Code (LoC). Amongst these, Emmanuel and I are able to transpile automatically around 50K LoC, leading to 68K JavaScript-generated LoC (by automatic transpilation, I mean that the generated JavaScript code can be run in the browser as is, without any manual adaptation of the code).

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