Category Archives: Tools

Tools used for development (construction, profile, monitor, …)

Book review: Version Control by Example

A colleague of mine give me this book, as I use “third generation” VCSs. I decided to check on the author approach on Version Control and his opinion on the matter. The book explores the different approaches of the latest VCS tools, with their advantages and drawbacks. Also, it delves into some algorithmic designs of Distributed VCSs. I’ve already discussed some of these tools, but the book is not a flame war against one DVCS, but more an explanation of all of them.
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Book review: Introduction to High Performance Computing for Scientists and Engineers

We know now that we won’t have the same serial computing increase we had in the last decades. We have to cope with optimizing serial codes, and programming parallel and concurrent ones, and this means that all coders have to cope with this paradigm shift. If computer scientists are aware of the tools to use, it is not the same for the “average” scientist or engineer. And this is the purpose of this book: educate the average coder.
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Announcement: QtSimpleOverdrive 1.0 (QtVST)

I’m pleased to announce the release of my first VST plugin (Windows 32bits), based on the simple overdrive prototype.

It is a mono filter, with an oversampling of 2 to 32, based on polyphase filters, and the undersampling is done after an 8th order Butterworth lowpass filter with a cut frequency of 22kHz.

The source code will be available (under the GPL) in the future if there is interest in the plugin and its support. The exact way it works will be explained in a future blog post.

The audio plugin is available on Sourceforge: https://sourceforge.net/projects/qtvst/files/QtSimpleOverdrive/

If you find any issue, please submit it on Github: https://github.com/mbrucher/qtvst

Please note that the oversampling can be quite CPU intensive (on my laptop, an Intel Core2 T7200, using an oversampling of 4 at 96kHz uses the full power of one core).

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Substitution in a variant dir with Scons

A few months ago, I encountered an issue with Scons and the SubstInFile2 tool. When it is used in a variant dir, when the emitter is called, the variant dir is not yet populated. Unfortunately, the emitter tries to open the file in the variant dir, so this does not work.

The only thing to do is to use the source node in the emitter instead of the variant node. So line 112:

keys = subst_keys(str(s.srcnode()))

And this is it!

Book review: Data Analysis with Open Source Tools

When faced with a new dataset, the issue is to find how it should be analyzed. A lot of books addresses the theoretical way of doing it, but this book gives practical clues to do it. Besides, it isn’t based on commercial tools like MATLAB, but on open source tools that can be freely downloaded on the Internet.

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Book review: TortoiseSVN 1.7 Beginner’s Guide

TortoiseSVN is one of the best and well-known GUI for SVN. It has also given birth to parallel projects for all the other VCS (TortoiseHG, TortoiseGit…). It’s only fair a book is dedicated to it.
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Review of Intel Parallel Advisor (part of Parallel Studio 2011)

After my review of Intel Parallel Studio and then my post of Advisor Lite, I had the opportunity of doing the beta of Intel Advisor and then the final version of Parallel Studio.

The review will not be as thorough as the one on Advisor Lite, because Advisor is an update of Advisor Lite. It has some additional features, and that’s what I’d like to focus on.

I won’t dwell into the details of Intel’s new offer, suffice to say that Intel took the opportunity of changing some offers name and of incorporating some parts of Parallel Studio in its other products, and of course on Linux (which was left alone until then).

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Bazaar, Git or Mercurial? Some thoughts

It has been a few years since I’ve learned about DVCS (Distributed Version Control Software), and there are always some battles between the three main containders. The Centralized VCS war was won by Subversion, but the DVCS is far from over. I had the chance to use those three tools for work, free-time and open source projects. I do not claim that my time using them is enough to have a solid conclusion, but for me, there is a clear winner.

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