lev_lafayette's blog

Dunlop Armour Review - Big W Purchase

Following attempted postings at:

I ride approximately 20km per day, to and from work. About half this distance is hills and bends (following a river) and about half is inner urban and mostly flat.

For the past six months I have struggled daily with this bike.

To change gears without the derailleur slipping the upper gears have to turned in the opposite direction to the lower gears. This is not documented in the user and maintenance manual.

Ticker Tape News for Drupal 7

The "marquee" element was originally designed by Microsoft for early versions of Internet Explorer. Rather like Netscape's "blink" element, it is usually thoroughly unloved by web developers, for being proprietory, non-standard, causing usability problems, and is distracting to other content. It is considered deprecated by the W3C and not advised for use in any HTML documents.

MATLAB X-Forwarding, Command Line, and PBS Scripts

Recently it has been noticed that MATLAB bench suite fails when forwarding (by "fails" I mean the applications dies horribly) OpenGL commands. This is not a problem unique to MATLAB, but rather to a range of applications, however there is a simple workaround. My experience is that this a fairly recent problem too, so I shake my fist in futility at certain video card manufacturers who harming scientific research, dammit.

Events and Registration in Drupal 7

One of the more interesting experiences with Drupal version upgrades is the discovery that your favourite third party module is no longer available, or is not ready yet for a production service. This is particularly the case when you're not the person managing the upgrade process. Or better still, you are managing it now, because the first attempt wasn't managed, as such.

OpenFOAM Cluster install with GCC and OpenMPI

OpenFOAM (Open Field Operationa and Manipulation) is a computational fluid dynamics toolbox which simulates "anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid dynamics, electromagnetics and the pricing of financial options." All this and free and open source as well.

Note that this installation instructions are substantially different to the version 1.5 install instructions.

Changing List Owners (and much more) in Mailman

Recently a staff member left the business for an extended holiday and beyond (congratulations). He was however the owner and moderator of almost fifty Mailman mailing lists. This would take "a while" if one had to change the ownerships manually on the Mailman web interface. Strangely, there seemed to no obvious command-line tool in the Mailman /bin directory.

Removing a Book from Drupal

The Drupal "Book" module is pretty awesome is you want to create structured content of any type which is very common. Removing or re-ordering a page from a book is pleasantly easy; simply select outline on the child-page and the options are there.

But what if you want to remove the top-level page from the book? Well, in what constitutes a slight failing of the Drupal module, the normal method simply isn't available, although there has been some valiant efforts to patch the problem.