How Does Hyperthreading Affect an ALLPATHS-LG Run?

In running ALLPATHS-LG, a short read genome assembler, on a Dell PowerEdge R920 with four Xeon E7-4860v2 processors running at 2.60GHz, I did one run with hyperthreading on and one with hyperthreading off. This was mainly to see if the increased cache size on the physical CPU core with hyperthreading off had a positive effect on performance.

I'll take all the anticipation away: Nope. Hyperthreading wins. Read more... about How Does Hyperthreading Affect an ALLPATHS-LG Run?

How to Install Canon ip4000R Wireless Printer Driver on OS X 10.9

We have a wireless Canon PIXMA ip4000R printer that has served us well. However, a new computer with OS X 10.9 Mavericks did not recognize it, and Canon did not have a driver for it.

I ended up moving the following components from an existing computer on which the printer was already working:

/Library/Printers/Canon
/Library/Printers/PPDs/Contents/Resources/Canon*
/Library/CFMSupport
/System/Library/Extensions/BJUSBLoad.kext

I fixed the permissions: Read more... about How to Install Canon ip4000R Wireless Printer Driver on OS X 10.9

Apache, MySQL, PHP on OS X 10.9 Mavericks with MacPorts

Monitoring Drupal with Sensu

I gave a presentation called Monitoring Drupal with Sensu at DrupalCorn 2013.

Annotated slideset is up at the link above. Read more... about Monitoring Drupal with Sensu

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