Wednesday, January 30, 2008

Googlebombs Half Defused

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About a week ago, the Google Webmaster’s Guild (ok, Blog, but it sounds like a secret organization) brought back into attention the Googlebombs, saying that they have been defused after a prolonged and sustained effort from their dev team. The algorithm they came up with actually works… some of the times.

Not familiar with the term "Googlebomb"? Also called
a "linkbomb" because it’s not always connected to Google, it is actually a sort of a prank that has people attempting to cause someone else’s site to rank for an obscure or meaningless query, in an attempt to lower its credibility and create an overall embarrassing effect.

Ryan Moulton and Kendra Carattini both wrote about the way that they had dealt with the problem and about what they put together to be their "defusing kit." Apparently, the algorithm they developed worked like a sort of deeper inquiry, trying to match the words in the query to those on the site. In plain words, if it ain’t there, it’s not going to show, and that should usually be enough.

Philipp Lenssen of blogoscoped.com found an interesting Googlebomb still ticking: searching for "dangerous cult" will find the website of Scientology.org. This case is interesting because the site actually contains the word "dangerous", but "cult" is not there. And as the Webmaster’s Guild said that they weren’t looking for a manual resolve of any problem, they’ll be looking at some more work to come up with a solution. I would be the first to remove the result from the query’s search results page and then figure out what went wrong, but they seem to want to do it by the book.

Luckily, the bombs have been pretty much defused. Unfortunately for us, the solution to partly include in the "funny" URL that pranksters sent, in order to create one such bomb, words on the site means that they will still continue, perhaps at an unmodified scale. Long live the Bomb Squad!

Tuesday, January 29, 2008

Nvidia to Work on the First Mac GPGPU Architecture

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The General-Purpose Graphics Processing Unit (GPGPU) is a new class of graphics processor that can perform the same logical operations that were reserved for a system's primary CPU
.

These GPGPUs allow the system speed up processing of non-graphics applications and got into the spotlight with the advent of ATI's R600 GPU. Nvidia could not stay away from the boiling pot, so it invented the CUDA (Computer Unified Device Architecture) architecture, currently compatible with the new graphics cards in the GeForce 8 series.

The main idea that lies behind the GPGPU is to use the GPU computing power for non-graphics related actions. These general-purpose processing units are built following a parallel design, so they are the perfect tool for calculations.

Moreover, they can face higher workloads than the common CPUs, such as ray-tracing, scientific computing applications, database operations, cryptography, physics-based simulation engines, and video, audio and digital image processing. The two competing graphics companies figured out that the GPGPU technology can unleash incredible powers, that allow the GPU perform new and (probably) useful tasks.

Nvidia is allegedly working on a GPGPU system to suit Apple's Mac Pro workstations, since these processors boost digital video and audio professionals in sound effects processing, video decoding and post processing. This feature will tie the knots between Apple and Hollywood even tighter than before. Well, this does not mean that just any Mac owner will be able to direct their own version of Star Wars at home, but they will surely be a performance booster.

"In science applications, calculations have seen speed boosts from a 45 times to as much as 415 times in processing MRI scans for hospitals. Increases such as this can mean the difference between using a single system and a whole computer cluster to do the same work", the company says.

There is no word on when the GPGPU-enabled graphics cards will kick in, but it is supposed that Nvidia is working at full load now. We'll have yet to see how capable the Apple – Nvidia affair will be to give birth to a compatible Mac OS X driver to work with the cards.