Proposal for Inspector for Properties of Canvas-like Visualizations in ProM 6

While ProM does not contain editors, it does contain many graphical visualizations.  A non-trivial subset of these are canvas-like in nature, a very prominent example being graph-like visualizations.  One of the graph-like visualizations is the Petri net visualizer.  Canvas-like visualizations share the property that they are scalable – a fact that is often needed to […]

Read More… from Proposal for Inspector for Properties of Canvas-like Visualizations in ProM 6

Memory-Efficiency in Java

I like to generate state-spaces.  I generate a lot of them.  And I have made the code efficient enough that I can generate very large ones.  Normally, when you code, using hundreds or even thousands of bytes for an object is no issue, but when you multiple 1000 with a million, you suddenly use 1 […]

Read More… from Memory-Efficiency in Java

Characteristics of a Parallel State-space Analysis Algorithm

I’m running some experiments with a parallel implementation of state-space generation and observed something very interesting. I was running the experiments on my own computer (iMac, Core i7 2.8 GHz w/ 4 cores (8 HT) and 8 GiB 1067 MHz RAM).  The experiment has been running for almost 4 days now and have just about […]

Read More… from Characteristics of a Parallel State-space Analysis Algorithm

Parallel State-space Generation

I’m doing some state-space analysis at the moment.  Instead of bogging down my computer at home, I am running the experiments on our grid.  It is a bit overkill, but there is something sexy by running a parallel algorithm on a machine with 16 CPUs.  Unfortunately, it seems my algorithm doesn’t really scale that high, […]

Read More… from Parallel State-space Generation

A Graphical History of CPN Tools

In celebration of the upcoming version of CPN Tools, I made this picture showing all externally released version of CPN Tools from 0.1.1 to 3.0.0 (though the latter is not really released yet).  Click on the image for a (much) larger version. MichaelTime person of the year 2006, Nobel Peace Prize winner 2012. westergaard.eu/ […]

Read More… from A Graphical History of CPN Tools