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2009.04.30

Best Day to Blog

Most of us don't have enough time to blog every day. Given that blogging ideas can often be pending for days, which is the best day to publish them?

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2009.04.26

Dual-Use Technology

Lego sells lovely toys with a great educational potential. No peace-loving father would have a problem giving them as a gift (especially, if he can also occasionally take part in the action). Unfortunately, children seem to have their own (genetically preprogrammed?) ideas of what is interesting to build. I still love Lego, but I'm a bit worried about human nature.

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2009.04.20

A Tiling Demo

Over the past (too many) days I've been preparing my presentation for the ACCU 2009 conference. At one point I wanted to show how loop tiling increases locality of reference and therefore cache hits. Surprisingly, I could not find a demo on the web, so I built one from scratch. Here are two applets demonstrating memory accesses during a matrix raise to the power of two operation.

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2009.04.15

Drawing Tools

1 Word = 1 Millipicture

— /usr/games/fortune

It’s no accident that in all engineering branches, our colleagues often communicate using drawings and diagrams. Given many artifacts’ scale and complexity, a drawing is often the best way to describe them. Uniquely, in software development we can easily derive pictures from code, and sometimes even code from pictures.

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2009.04.08

Precision in Comments

As I was writing some code for the CScout refactoring browser today, I reflected on the importance of writing precise and clear comments.

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2009.04.01

Open Source Opens up for Business

Today, as I was reading the sourceforge.net monthly update, I was impressed by the number of business-related software in the top-25 project list. I was sure this wasn't always the case, so I dug up the corresponding the top-25 projects at the beginning of 2006 to refresh my memory. The differences are profound.

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Unless otherwise expressly stated, all original material on this page created by Diomidis Spinellis is licensed under a Creative Commons Attribution-Share Alike 3.0 Greece License.