Category Archives: School

Adventures in 3D Printing

Posted on 2013-02-15 by pappp

The MakerGear M2 3D printer the KAOS lab ordered arrived last week. I am thoroughly impressed with the machine and how little fussing has been required to get decent prints out of it. I’ve been pushing annotated pictures of our … Continue reading →

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Spring 2013 Impressions

Posted on 2013-01-23 by pappp

Since I’m in the habit of posting about classes I take at the beginning and end of the semester, and often find something interesting when I look at them later, some quick impressions for courses I’m involved in for the … Continue reading →

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SC12 Impressions

Posted on 2012-11-17 by pappp

I’ve got my pictures from the event up in an album in google’s cloud. Here are the big, cool things I learned on the floor or at the various evening events: Xeon Phi. Xeon Phi everywhere. Intel may have backed … Continue reading →

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SC12

Posted on 2012-11-05 by pappp

I will be at SC12 November 10-16, with the Aggregate.org/University of Kentucky exhibit in booth 631. I will be posting pictures and impressions through at least one of my online presence mechanisms . I fully expect it to be weird … Continue reading →

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Pigeonhole Contamination

Posted on 2012-10-02 by pappp

I just had one of those “My whole life is a lie!” moments while preparing to teach the CS275 (discrete math) recitation that includes the Pigeon Hole Principle section. Years ago, I took my basic discrete math course from Dr. … Continue reading →

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Exploit Exercises is magnificent: nice pre-packed virtual machines with a set of known vulnerabilities to learn various classes of security problem from. Fuzzing you own machines is never any fun, because the likelyhood of finding anything good is infinitesimal, and … Continue reading →

Posted on 2012-04-08 by pappp | Leave a comment

Higher Education Policy

Posted on 2012-02-02 by pappp

This came out of a discussion on plus about an article I shared, but Plus isn’t really a suitable venue for the long-form response. The basic premise of the article, like so many similar articles, is that we need to … Continue reading →

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The previous post ended with “I have no idea why the nodes won’t boot.” Now we know. The problem is that, in terms of the mkchroot-rh script that Warewulf3 comes with, Fedora 16 is not a Redhat derivative. This makes … Continue reading →

Posted on 2012-01-06 by pappp | Leave a comment

Warewulf, and the Kernel Documentation

Posted on 2012-01-05 by pappp

Earlier, while trying to instrument a failing boot from some peculiar nodes we were trying to provision, I came across the following gem in the Linux kernel documentation, from Documentation/filesystems/ramfs-rootfs-initramfs.txt: Note: The cpio man page contains some bad advice that … Continue reading →

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Teaching Embedded Systems (with Arduino)

Posted on 2011-12-14 by pappp

Now that the classes are winding down, I want to write up some internet-accessible notes about the embedded systems unit I designed and taught for EGR199 this semester. The unit went well, and I can see basically the same materials … Continue reading →

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