Archive for category Config files

Building a HTPC with Intel Atom and NVIDIA ION

Posted by on Saturday, 14 January, 2012

Some time ago I wrote about building a NAS with Ubuntu Server on the Intel Atom platform. This nifty little processor, when combined with NVIDIA ION, can easily be used to build a full-fledged HTPC. Read the rest of this entry »

Speeding up OMNeT++/MiXiM simulations

Posted by on Wednesday, 21 December, 2011

Compiler optimisation flags can be quite helpful in bringing the (sometimes huge) duration of your OMNeT++ simulations to an acceptable level. Using a compute cluster can help, but even then the execution of a single process can take many hours for large networks. So let’s look at how you compile your code; I got a speed-up of approximately 10 times on some of my simulations. Read the rest of this entry »

Getting grip on eventlogs in OMNeT++

Posted by on Monday, 12 December, 2011

OMNeT++ simulations can export an eventlog. Though the manual is pretty complete about it, I’ll summarise it here. Read the rest of this entry »

OMNeT++: Error during startup: No user interface (Cmdenv, Tkenv, etc.) found

Posted by on Wednesday, 7 December, 2011

After an update of GCC (on Kubuntu 11.10) this error shows up when running simulations after recompilation.
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PHP Script for Calculating Confidence Intervals

Posted by on Tuesday, 29 November, 2011

Some time ago I wrote about a Shell Script for calculating confidence intervals. Since I also do a lot of number crunching with PHP (hey, it’s web-based and works great with an SQL server for the data!) I wrote a PHP script to get the job done. Here’s how. Read the rest of this entry »