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Comment Re:Indiana, not Indian (Score 1) 195

Your Scheme code uses pattern matching so that's not comparable to the pseudo Scheme stuff, which just uses simple accessor.

Scheme does provide accessor for record type. Well I would love to have a reader macro and define something more concise like a.x, but too bad reader macro is not standard. The comparable code with that pseudo Scheme code of yours would be something like

(define (point3-add a b)
  (make-point3
    (+ (point3-x a) (point3-x b))
    (+ (point3-y a) (point3-y b))
    (+ (point3-z a) (point3-z b))))

I bet those who appreciate s-expression can comprehend this code with just a glance. I find that s-expressions are rather easy to parse by (my) human eyes provided they are properly indented.
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RPiCluster: Another Raspberry Pi Cluster, With Neat Tricks 79

New submitter TheJish writes "The RPiCluster is a 33-node Beowulf cluster built using Raspberry Pis (RPis). The RPiCluster is a little side project I worked on over the last couple months as part of my dissertation work at Boise State University. I had need of a cluster to run a distributed simulator I've been developing. The RPiCluster is the result. I've written an informal document on why I built the RPiCluster, how it was built, and how it performs as compared to other platforms. I also put together a YouTube video of it running an MPI parallel program I created to demo the RGB LEDs installed on each node as part of the build. While there have certainly been larger RPi clusters put together recently, I figured the Slashdot community might be interested in this build as I believe it is a novel approach to the rack mounting and power management of RPis."

Submission + - xkcd's long-running "Time" comic: Work of art or nerd sniping?

Fortran IV writes: Randall Munroe's xkcd webcomic has done some odd things before, but #1190, "Time," is something special. It's a time-lapse movie of two people building a sandcastle that's been updating just once an hour (twice an hour in the beginning) for well over a month (since March 25th), and after over a thousand frames shows no sign of ending; in a few days the number of frames will surpass the total number of xkcd comics. It's been mentioned in The Economist. Some of its readers have called it the One True Comic; others have called it a MMONS (Massively Multiplayer Online Nerd Sniping). It's sparked its own wiki, its own jargon (Timewaiters, newpix, Blitzgirling), and a thread on the xkcd user forum that runs to over 20,000 posts from 1100 distinct posters. Is "Time" a fascinating work of art, a deep sociological experiment—or the longest-running shaggy-dog joke in history? Randall Munroe's not saying.

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