Update: What I’ve Been Up To

The past several months have been a whirlwind of the following: Searching for a job Putting various aspects of my life in order post-college, including sorting and fixing a lot of stuff that just wasn’t important enough to take care of while I was a student, but definitely is now that I’m not Back-to-back: A… Read More »

SD Card Issues

I’ve had 16 Pis running for about a week (with 16 GB SD cards) with no trouble. I’ve been running them with only 2 of 4 intake fans to maintain a power-to-airflow ratio that’s close to what I should expect from having all 40 of them running. I’ve been seeing case temperatures of roughly 31 °C (88 °F)… Read More »

Progress at Compiling Mesos

I’ve been in the process of trying to get a good compile of Mesos on the Raspberry Pi for about 3 1/2 weeks now. I decided to document the challenges of this, in case it might help anyone else who is trying to do the same thing. My first approach was to try compiling on… Read More »

Why the Raspberry Pi?

Several questions have been posed about my 40-node cluster design (e.g., “Why build a Raspberry Pi cluster?”). I’ve decided to provide a little of the history of my project, and some thoughts on its possible future. Past I first had the idea of building microcontroller-based cluster in early 2002. At the time, I was working… Read More »

Laser Cutter Tips

In the course of making my 40-node Raspberry Pi cluster, I learned quite a lot about working with a CNC laser cutter. These are a few of the tips I have for making laser-cut parts that I used for this project. Tip 1: Acrylic Prep Before cutting parts, first prep a suitable piece of your… Read More »